Cooling fan forming die

By using the side-by-side molding mechanism and pushing components, rapid casting and efficient material discharge of the cooling fan molding die are achieved, solving the problems of slow processing speed and poor quality of existing molds and improving production efficiency.

CN224255876UActive Publication Date: 2026-05-19DONGGUAN JINXUDA PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN JINXUDA PLASTIC PROD CO LTD
Filing Date
2025-04-27
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing cooling fan molding dies are slow to process and of poor quality, which affects production efficiency.

Method used

The first and second molding mechanisms are arranged side by side. By pushing the components and molding limiting components to be detachably assembled, the volume of the molding assembly cavity can be adjusted to ensure the speed and quality of casting.

Benefits of technology

It improved the speed and quality of casting and molding, increased the product discharge speed, and enhanced production and processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of cooling fan production, and particularly relates to a cooling fan forming die which comprises a first forming mechanism and a second forming mechanism which are arranged side by side. The second forming mechanism comprises a second base, a pushing part and a forming module; the forming module is connected to the surface of one side of the second base; the pushing part is connected to the second base; the first forming mechanism comprises a first base, a forming positioning part and a forming limiting assembly; the forming positioning part is connected to the first base; the forming limiting assembly is movably connected to the first base. A forming assembly cavity is formed among the forming positioning part, the forming limiting assembly and the forming module; the side end, away from the second base, of the pushing part is movably connected to the forming limiting assembly. According to the utility model, the speed and quality of casting molding can be ensured, and the production and processing efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of cooling fan manufacturing technology, and in particular relates to a cooling fan molding die. Background Technology

[0002] As integrated circuits become increasingly dense and complex, the heat generated by electronic components during operation also increases, leading to elevated component temperatures and impacting their normal operation. This is particularly true for the central processing unit (CPU), which experiences exceptionally high temperatures. Therefore, heat dissipation devices are needed to assist in heat dissipation and ensure stable operation of the CPU within a reasonable temperature range. However, cooling fan blades in these devices are mostly made of plastic, resulting in complex shapes, uneven wall thicknesses, high dimensional accuracy requirements, and stringent requirements for surface quality and dimensional stability. Cooling fan blades are generally manufactured using injection molding.

[0003] However, existing cooling fan molding dies are slow to process cooling fan blades and produce poor processing quality, thus affecting production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a cooling fan molding die to address the shortcomings of existing technologies and solve the technical problem of production and processing efficiency in existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cooling fan forming mold includes a first forming mechanism and a second forming mechanism arranged side by side;

[0007] The second molding mechanism includes a second base, a pushing component, and a molding module; the molding module is connected to one side surface of the second base; the pushing component is connected to the second base.

[0008] The first molding mechanism includes a first base, a molding positioning component, and a molding limiting component; the molding positioning component is connected to the first base; the molding limiting component is movably connected to the first base; a molding assembly cavity is provided between the molding positioning component, the molding limiting component, and the molding module; and the end of the pushing component away from the second base is movably connected to the molding limiting component.

[0009] Preferably, the pushing component includes at least one pushing rod; one end of the pushing rod is inclinedly disposed on the first base; the other end of the pushing rod extends toward the molding limiting component; and the other end of the pushing rod is movably connected to the molding limiting component.

[0010] Preferably, the inclination angle between one end of the push rod and the first base is α; α satisfies: 50°≤α≤80°.

[0011] Preferably, the molding module includes a molding template; the molding template is connected to the second base; the side end of the molding template is provided with a molding gap; the molding gap is connected to the molding assembly cavity.

[0012] Preferably, the molding limiting assembly includes at least two first limiting components; all the first limiting components are arranged around the molding positioning component in the circumferential direction; and each of the first limiting components is movably disposed on the first base; the pushing component is movably connected to the first limiting component.

[0013] Preferably, the molding limiting assembly further includes at least one second limiting component; each second limiting component is disposed between two adjacent first limiting components; and the second limiting component is disposed on the movement path of the first limiting component away from the molding positioning component.

[0014] Preferably, the first limiting component has a pushing oblique hole corresponding to the pushing component.

[0015] Preferably, the first limiting component includes a movable plate, a reference plate, and a reinforcing rod; one end of the reinforcing rod is connected to the first base; the other end of the reinforcing rod is connected to a surface of the reference plate; a cooperating channel is provided in the reference plate; the bottom of the movable plate is slidably connected to another surface of the reference plate; the pushing oblique hole is arranged through the thickness direction of the movable plate; and the cooperating channel is connected to the pushing oblique hole.

[0016] Preferably, the movable plate has a second mounting hole on one side facing the molding and positioning component; the molding and positioning component has a limiting elastic element on one side; one end of the limiting elastic element extends into the interior of the second mounting hole and is connected to the movable plate.

[0017] Preferably, the forming and positioning component includes a forming and positioning boss and a discharge rod; the forming and positioning boss is disposed on the first base; one end of the discharge rod extends through the thickness direction of the forming and positioning boss; the other end of the discharge rod is used to connect to a telescopic drive power source.

[0018] The beneficial effects of this utility model are as follows: by detachably assembling the pushing component and the molding limiting component into one unit, the molding limiting component moves toward the molding positioning component when the pushing component and the molding limiting component are assembled, thereby reducing the volume of the molding assembly cavity to the volume corresponding to the required product; and when the pushing component and the molding limiting component are disassembled, the molding limiting component moves away from the molding positioning component, thereby increasing the volume of the molding assembly cavity, which is beneficial for the unloading of the cast product; thus, it can ensure the speed and quality of casting, improve the product discharge speed, and improve production and processing efficiency. Attached Figure Description

[0019] The following will refer to the appendix. Figures 1-7 This section describes the features, advantages, and technical effects of exemplary embodiments of the present invention.

[0020] Figure 1 This is a structural schematic diagram of the exploded state of a cooling fan molding die according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the second forming mechanism of a cooling fan forming mold according to an embodiment of the present invention;

[0022] Figure 3 This is a partial structural schematic diagram of the second forming mechanism of a cooling fan forming mold according to an embodiment of the present invention;

[0023] Figure 4 This is a structural diagram of the exploded state of the first forming mechanism of a cooling fan forming mold according to an embodiment of the present invention.

[0024] Figure 5 This is a partial structural schematic diagram of the first forming mechanism of a cooling fan forming mold according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the first limiting component of the cooling fan molding die according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the first limiting component of the cooling fan forming mold according to an embodiment of the present invention.

[0027] In the diagram: 100-First forming mechanism; 110-First base; 111-First support plate; 112-Second support plate; 113-Buffer elastic element; 114-Guide limiting post; 115-Limiting groove; 116-Mounting groove; 117-Guide port; 120-Forming positioning component; 121-Forming positioning boss; 122-Discharge rod; 123-Discharge port; 130-Forming limiting assembly; 131-First limiting component; 1311-Moving plate; 1312-Pushing oblique hole; 1313-Base plate; 1314-Cooperation channel; 1315-Reinforcing rod; 1316-Second Mounting hole; 1317-First abutting surface; 1318-Second abutting surface; 132-Second limiting component; 140-Molding assembly cavity; 150-Molding support plate; 151-Molding support boss; 152-First mounting hole; 153-Limiting elastic component; 154-Guide channel; 200-Second molding mechanism; 210-Second base; 211-Third support plate; 212-Fourth support plate; 213-Guide rod; 220-Pushing component; 221-Pushing rod; 230-Molding module; 231-Molding template; 232-Molding gap; 233-Positioning cavity. Detailed Implementation

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0029] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or multiple situations existing alone. In addition, the character " / " in this document generally indicates that the related objects before and after are in an "or" relationship.

[0032] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a movable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0033] The following is in conjunction with the appendix Figures 1 to 7 The present invention will be described in further detail, but this is not intended to limit the scope of the present invention.

[0034] like Figure 1 and 4 As shown, in one embodiment of this utility model, the cooling fan molding die includes a first molding mechanism 100 and a second molding mechanism 200 arranged side by side. The second molding mechanism 200 includes a second base 210, a pushing component 220, and a molding module 230. The molding module 230 is connected to one side surface of the second base 210. The pushing component 220 is connected to the second base 210. The first molding mechanism 100 includes a first base 110, a molding positioning component 120, and a molding limiting component 130. The molding positioning component 120 is connected to the first base 110. The molding limiting component 130 is movably connected to the first base 110. A molding assembly cavity 140 is provided between the molding positioning component 120, the molding limiting component 130, and the molding module 230. The side end of the pushing component 220 away from the second base 210 is movably connected to the molding limiting component 130 to cause the molding limiting component 130 to move toward or away from the molding positioning component 120. The first forming mechanism 100 and the second forming mechanism 200 are arranged side by side in a horizontal direction.

[0035] The technical solution of this utility model is to detachably assemble the pushing component and the molding limiting component into one unit. When the pushing component and the molding limiting component are assembled, the molding limiting component moves toward the molding positioning component to reduce the volume of the molding assembly cavity to the volume corresponding to the required product. Furthermore, when the pushing component and the molding limiting component are disassembled, the molding limiting component moves away from the molding positioning component to increase the volume of the molding assembly cavity, which is beneficial for the unloading of the cast product. This, in turn, ensures the speed and quality of casting and improves the product discharge speed, thereby increasing production efficiency.

[0036] Specifically, in some implementations, such as Figure 1 and 2 As shown, the pushing component 220 encloses at least one pushing rod 221; the number of pushing rods 221 corresponds to the number of molding limiting components 130; one end of the pushing rod 221 is inclinedly disposed on the first base 110; the other end of the pushing rod 221 extends toward the molding limiting component 130; and the other end of the pushing rod 221 is movably connected to the molding limiting component 130. In some embodiments, such as... Figure 2 As shown, the inclination angle between one end of the push rod 221 and the first base 110 is α; α satisfies: 50°≤α≤80°; it can be 50°, 60°, 65°, 70°, 75°, 76°, 80°, etc.; preferably 75°. This structure, with the push rod 221 assembled at a relatively large acute angle, can push the molding limiting component 130 towards the molding positioning component 120 when the first base 110 and the second base 210 are in the closed casting state, to form a closed molding assembly cavity 140; thereby improving the stability and quality of the molding process.

[0037] Specifically, in some implementations, such as Figure 1 and 2 As shown, the second base 210 includes a third support plate 211, a fourth support plate 212, and a guide rod 213. The third support plate 211 and the fourth support plate 212 are arranged side by side. One end of the guide rod 213 passes through the third support plate 211 and is connected to the fourth support plate 212. The third support plate 211 (with the first guide hole) is slidably disposed on the guide rod 213. The molding module 230 and the pushing component 220 (with all the pushing rods 221) are connected to the third support plate 211. This structure, by having the third support plate 211 slidably disposed on the guide rod 213, allows the third support plate 211 and the fourth support plate 212 to separate after casting to achieve a heat dissipation and buffering effect, thereby extending their service life and ensuring the stability and smoothness of casting.

[0038] Specifically, in some implementations, such as Figure 2 and 3As shown, the molding module 230 includes a molding template 231; the molding template 231 is connected to the second base 210 (the third support plate 211); the molding template 231 has a positioning cavity 233 inside; the molding positioning component 120 is disposed inside the positioning cavity 233; the circumferential side end of the molding template 231 has a molding gap 232 corresponding to the product; the molding gap 232 is connected to the molding assembly cavity 140; and the molding template 231, the molding positioning component 120 and the molding limiting component 130 form the molding assembly cavity 140. This structure, by forming a sealed molding assembly cavity 140 between the molding template 231, the molding positioning component 120 and the molding limiting component 130, combined with the molding gap 232 on the molding template 231, can quickly promote product casting and molding, thereby improving production efficiency.

[0039] Specifically, in some implementations, such as Figure 1 and 4 As shown, the molding limiting assembly 130 includes at least two first limiting components 131 and at least one second limiting component 132; all first limiting components 131 are arranged around the molding positioning component 120 in the circumferential direction; and each first limiting component 131 is movably disposed on the first base 110; each second limiting component 132 is disposed between two adjacent first limiting components 131; and the second limiting component 132 is disposed on the movement path of the first limiting component 131 away from the molding positioning component 120. That is, the formation of the molding assembly cavity is facilitated by all the first limiting components 131, which is conducive to the orderly progress of casting; and the limiting and abutting action of the second limiting component 132 on the adjacent two first limiting components 131 in the completed and separated state prevents the first limiting components 131 from separating excessively, thereby improving the orderly progress of the casting operation and improving the production efficiency. In some embodiments, the second limiting component 132 is selected as a second limiting plate with a triangular or trapezoidal cross section, which helps to save space and improve the orderly progress of the pouring operation, thereby improving production and processing efficiency.

[0040] Specifically, in some implementations, such as Figure 4 and 6 As shown, the first limiting component 131 is provided with a pushing inclined hole 1312 corresponding to the pushing component 220 (middle pushing rod 221). That is, the inclination of the inner diameter of the pushing inclined hole 1312 is consistent with the inclination of the pushing rod 221, thereby ensuring the orderly and stable movement of the pushing component 220 (middle pushing rod 221) pulling the first limiting component 131; thereby improving production and processing efficiency.

[0041] Specifically, in some implementations, such as Figure 6As shown, the first limiting component 131 includes a movable plate 1311, a reference plate 1313, and a reinforcing rod 1315; one end of the reinforcing rod 1315 is connected to the first base 110; the other end of the reinforcing rod 1315 is connected to the bottom surface of the reference plate 1313; a cooperating channel 1314 is provided inside the reference plate 1313; the bottom of the movable plate 1311 is slidably connected to the top surface of the reference plate 1313; a pushing oblique hole 1312 is provided through the thickness direction of the movable plate 1311; and the cooperating channel 1314 is connected to the pushing oblique hole 1312; the movable plate 1311, the forming template 231, and the forming positioning component 120 form the forming assembly cavity 140. This structure allows the movable plate 1311 to slide back and forth along the reference plate 1313, thereby ensuring the orderliness of the extrusion of the movable plate 1311 to form the forming assembly cavity 140 and the orderliness of the separation and discharge of the movable plate 1311. In some embodiments, such as Figure 6 As shown, the movable plate 1311 has a first abutting curved surface 1317 and abutting curved surface 1318 on both end faces near the molding positioning component 120; and the first abutting curved surface 1317 of one movable plate 1311 is attached to the second abutting curved surface 1318 of the other movable plate 1311; this structure improves its sealing performance by fitting the first abutting curved surface 1317 and the second abutting curved surface 1318 on different side end faces of different movable plates 1311, thereby ensuring the stability of casting and avoiding the leakage of raw materials and the resulting waste.

[0042] Specifically, in some implementations, such as Figure 4 , 5 As shown in Figure 7, the movable plate 1311 has a second mounting hole 1316 on one side facing the molding positioning component 120; the molding positioning component 120 has a limiting elastic element 153 on one side; one end of the limiting elastic element 153 extends into the interior of the second mounting hole 1316 and is connected to the movable plate 1311. The limiting elastic element 153 is a limiting spring. That is, when the first molding mechanism 100 and the second molding mechanism 200 are separated, the limiting spring is in a relaxed stretched state. When the first molding mechanism 100 and the second molding mechanism 200 are in a side-by-side casting state, the pushing rod 221 in the pushing component 220 pushes the movable plate 1311 toward the molding positioning component 120, so that the limiting spring is compressed and the movable plate 1311 is in a sealed assembly; thereby ensuring the stability of the casting process and avoiding material leakage and waste.

[0043] Specifically, in some implementations, such as Figure 4 and 5As shown, the molding and positioning component 120 includes a molding and positioning boss 121 and a discharge rod 122. The molding and positioning boss 121 is disposed on the first base 110 and can be disposed inside the positioning cavity 233. One end of the discharge rod 122 extends through the thickness direction of the molding and positioning boss 121; the other end of the discharge rod 122 is used to connect to a telescopic drive power source (which can be a cylinder). The side surface of one end of the discharge rod 122 is tightly attached to the interior of the molding and positioning boss 121. This structure ensures orderly pouring and enables the rapid discharge of products clamped to the molding and positioning boss 121, thereby improving the orderly progress of the pouring operation and increasing production efficiency. Further, as... Figure 5 As shown, a molding support boss 151 is provided on the side of the molding positioning boss 121 away from the second molding mechanism 200; a molding support plate 150 is provided on the side of the molding support boss 151 away from the molding positioning boss 121; the molding support plate 150 is connected to the first base 110; and a first mounting hole 152 is provided on the side of the molding support boss 151; one end of the limiting elastic member 153 is connected to the interior of the first mounting hole 152. Furthermore, a material guide channel 154 is provided inside the molding support plate 150; a material outlet 123 communicating with the material guide channel 154 is provided inside the molding positioning boss 121 (wherein, one end of the material guide channel 154 passes through the molding support boss 151); and the material outlet 123 communicates with the molding assembly cavity 140. The material guide channel 154 can be an L-shaped or T-shaped cross-section.

[0044] Specifically, in some implementations, such as Figure 1 and 4 As shown, the first base 110 includes a first support plate 111, a second support plate 112, and a buffer elastic element 113; the first support plate 111 and the second support plate 112 are arranged side by side; and the two ends of the buffer elastic element 113 are respectively connected to the first support plate 111 and the second support plate 112; the molding positioning component 120 and the molding limiting component 130 are both connected to the first support plate 111. The buffer elastic element 113 can be a buffer spring. This structure, through the buffering and squeezing action of the buffer spring, further avoids damage to the mold caused by excessive impact force, thereby improving the safety of use. In some embodiments, such as... Figure 4As shown, the first base 110 also includes a guide limiting post 114; one end of the guide limiting post 114 passes through the first support plate 111 and is fixedly connected to the second support plate 112; the first support plate 111 is slidably connected to the outer surface of the guide limiting post 114; the other end of the guide limiting post 114 passes through the third support plate 211 and is fixedly connected to the fourth support plate 212; the third support plate 211 is slidably connected to the outer surface of the guide limiting post 114. This structure improves the stability of left and right sliding through the guiding effect of the guide limiting post 114, and ensures the quality and efficiency of casting. Further, in some embodiments, such as Figure 4 As shown, the first support plate 111 has at least one limiting groove 115 and at least one mounting groove 116 on the side surface facing the second forming mechanism 200 (the third support plate 211); the second limiting component 132 is engaged inside the limiting groove 115; the reference plate 1313 is engaged inside the mounting groove 116 to ensure the stability of the sliding adjustment. Furthermore, the side end of the first support plate 111 is also provided with a guide port 117; the guide port 117 is connected to the guide channel 154.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0046] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A molding die for a cooling fan, characterized in that: This includes a first forming mechanism and a second forming mechanism arranged side by side; The second molding mechanism includes a second base, a pushing component, and a molding module; the molding module is connected to one side surface of the second base; the pushing component is connected to the second base. The first molding mechanism includes a first base, a molding positioning component, and a molding limiting component; the molding positioning component is connected to the first base; the molding limiting component is movably connected to the first base; a molding assembly cavity is provided between the molding positioning component, the molding limiting component, and the molding module; and the end of the pushing component away from the second base is movably connected to the molding limiting component.

2. The cooling fan forming mold according to claim 1, characterized in that: The pushing component includes at least one pushing rod; one end of the pushing rod is inclinedly disposed on the first base; the other end of the pushing rod extends toward the molding limiting component; and the other end of the pushing rod is movably connected to the molding limiting component.

3. The cooling fan forming mold according to claim 2, characterized in that: The inclination angle between one end of the push rod and the first base is α; α satisfies: 50°≤α≤80°.

4. The cooling fan forming mold according to claim 1, characterized in that: The molding module includes a molding template; the molding template is connected to the second base; the side end of the molding template is provided with a molding gap; the molding gap is connected to the molding assembly cavity.

5. The cooling fan forming mold according to claim 1 or 2, characterized in that: The molding limiting assembly includes at least two first limiting components; all the first limiting components are arranged around the molding positioning component in the circumferential direction; and each of the first limiting components is movably disposed on the first base; the pushing component is movably connected to the first limiting component.

6. The cooling fan forming mold according to claim 5, characterized in that: The molding limiting assembly further includes at least one second limiting component; each second limiting component is disposed between two adjacent first limiting components; and the second limiting component is disposed on the movement path of the first limiting component away from the molding positioning component.

7. The cooling fan forming mold according to claim 5, characterized in that: The first limiting component has a pushing oblique hole corresponding to the pushing component.

8. The cooling fan forming mold according to claim 7, characterized in that: The first limiting component includes a movable plate, a reference plate, and a reinforcing rod; one end of the reinforcing rod is connected to the first base; the other end of the reinforcing rod is connected to a surface of the reference plate; a cooperating channel is provided in the reference plate; the bottom of the movable plate is slidably connected to another surface of the reference plate; the pushing oblique hole is arranged through the thickness direction of the movable plate; and the cooperating channel is connected to the pushing oblique hole.

9. The cooling fan forming mold according to claim 8, characterized in that: The movable plate has a second mounting hole on one side facing the molding and positioning component; the molding and positioning component has a limiting elastic element on one side; one end of the limiting elastic element extends into the interior of the second mounting hole and is connected to the movable plate.

10. The cooling fan forming mold according to claim 1, characterized in that: The forming and positioning component includes a forming and positioning boss and a discharge rod; the forming and positioning boss is disposed on the first base; one end of the discharge rod extends through the thickness direction of the forming and positioning boss; the other end of the discharge rod is used to connect to a telescopic drive power source.