Novel radiator main fin forming die
By preheating and removing dust from the lower mold using air supply and heating components, the problems of poor flow and dust adhesion on the radiator fins were solved, resulting in smooth injection molding and improved product quality.
Patent Information
- Application Number
- CN202520343902.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-28
AI Technical Summary
If the radiator fins do not flow smoothly within the mold cavity, uneven surfaces and dust accumulation can easily occur, resulting in a rough product.
An air supply component and a heating component are used to preheat and remove dust from the lower mold. The heating component is automatically rotated and reset via an electric push rod and gear mechanism to ensure the smooth progress of the injection molding process.
It improves the smoothness of fluid material flow in the mold cavity, enhances product quality, facilitates secondary preheating of the lower mold, and ensures the continuity of the injection molding process and the smoothness of the product surface.
Smart Images

Figure CN223834953U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of molding die technology, specifically a new type of radiator main plate molding die. Background Technology
[0002] The radiator main plate is injection molded using a mold. After the upper and lower molds are combined, fluid material is injected into the mold cavity. The fluid material fills the mold cavity and is cooled and solidified to obtain the radiator main plate.
[0003] Because the main fins of the heat sink have a long and slender structure, the fluid material flows for a relatively long time within the mold cavity. Furthermore, the injection mold cavity for the main fins has many undulating structures, which can easily disrupt the smooth flow of the fluid material, resulting in an uneven product surface. Additionally, dust easily accumulates in the lower mold, and these dust particles can become trapped inside the plastic or adhere to the product surface during the injection molding process. If dust adheres to the product surface, it can form bumps or pits, making the product surface rough. Utility Model Content
[0004] The purpose of this utility model is to provide a new type of radiator main plate forming mold to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel radiator main plate forming mold, comprising: a base plate, an upper mold, and a lower mold mounted on the base plate, further comprising: a bending plate mounted on the top outer wall of the base plate, wherein a first electric push rod is mounted on the top inner wall of the bending plate, and the upper mold is mounted at the bottom of the piston rod of the first electric push rod; a rotating rod is rotatably mounted on one side outer wall of the upper mold, and a rack is mounted on the top outer wall of the base plate; a gear is mounted on the outer wall of the rotating rod; a column is mounted at one end of the top outer wall of the base plate; an air supply component is mounted on the top of the column; an L-shaped plate is mounted at the bottom of the rotating rod; a heating component is mounted at one end of the L-shaped plate; and an extension component is mounted at the bottom of the L-shaped plate.
[0006] The air supply assembly includes an air pump, a filter installed on the air inlet of the air pump, and a connecting hose connected to the air outlet of the air pump.
[0007] The heating assembly includes a main pipe, multiple equally spaced branch pipes connected to the inner wall of the bottom of the main pipe, and electric heating coils installed on the inner walls of the branch pipes.
[0008] The extension assembly includes a second electric push rod, a connecting plate connected to the bottom of the piston rod of the second electric push rod, and multiple extension tubes fixedly inserted into the top outer wall of the connecting plate at equal intervals.
[0009] The end of the connecting hose furthest from the air pump is connected to the main pipe.
[0010] A damping sleeve is installed at one end of the rotating rod that is rotatably connected to the outer wall of the upper mold.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model discloses a novel radiator main plate molding die. Before injection molding, a hot airflow is generated by an air supply component and a heating component and blown into the lower mold to heat and remove dust from the interior of the lower mold. During subsequent injection molding, the fluid raw material flows more smoothly in the mold cavity, improving product quality. During the injection molding process, the heating component can automatically rotate and retract with the movement of the upper mold, without affecting the combined injection of the upper and lower molds. After injection molding is completed, it automatically resets, facilitating reheating of the lower mold before secondary injection molding, making it more convenient. Attached Figure Description
[0013] Figure 1 This is an external structural view of the present invention;
[0014] Figure 2 This is a structural diagram showing the position of the heating component and the extension component of this utility model;
[0015] Figure 3 This is a structural diagram of the gas supply component of this utility model;
[0016] Figure 4 This is a structural diagram of the heating component of this utility model;
[0017] Figure 5 This is a structural diagram of the extension component of this utility model;
[0018] Figure 6 This is a structural diagram of the main heat sink plate of this utility model.
[0019] In the diagram: 1. Base plate; 2. Bending plate; 3. First electric push rod; 4. Upper mold; 5. Rotating rod; 6. Lower mold; 7. Rack; 8. Gear; 9. Column; 10. Air supply assembly; 1001. Air pump; 1002. Connecting hose; 1003. Filter; 11. L-shaped plate; 12. Heating assembly; 1201. Main pipe; 1202. Branch pipe; 1203. Electric heating coil; 13. Extension assembly; 1301. Second electric push rod; 1302. Connecting plate; 1303. Extension pipe; 14. Radiator main plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-6 This utility model provides a novel radiator main plate forming mold, comprising: a base plate 1, an upper mold 4, and a lower mold 6 mounted on the base plate 1. It also includes: a bending plate 2 mounted on the top outer wall of the base plate 1; a first electric push rod 3 mounted on the top inner wall of the bending plate 2; the upper mold 4 mounted at the bottom of the piston rod of the first electric push rod 3; a rotating rod 5 rotatably mounted on one side outer wall of the upper mold 4; a rack 7 mounted on the top outer wall of the base plate 1; a gear 8 mounted on the outer wall of the rotating rod 5; a column 9 mounted at one end of the top outer wall of the base plate 1; an air supply assembly 10 mounted on the top of the column 9; an L-shaped plate 11 mounted at the bottom of the rotating rod 5; a heating assembly 12 mounted at one end of the L-shaped plate 11; and an extension assembly 13 mounted at the bottom of the L-shaped plate 11.
[0022] It should be noted that: the upper mold 4 can be lowered and closed onto the lower mold 6 by the first electric push rod 3 to form a complete mold cavity for injection molding. Before the upper mold 4 lowers, the air supply component 10 can filter the airflow and blow it into the heating component 12. The heating component 12 uses the airflow to split and heat it. The split hot airflow is evenly blown into the lower mold 6 to heat and remove dust from the interior of the lower mold 6, raising the internal temperature and blowing away the dust. During subsequent injection molding, the fluid material flows more smoothly in the mold cavity, improving product quality. When the heating component 12 blows hot air into the lower mold 6, the bottom length of the heating component 12 can be extended by the extension component 13 to reduce the flow distance of the hot airflow into the lower mold 6. This reduces the diffusion of hot airflow, allowing for better heating and dust removal inside the lower mold 6. After preheating and dust removal, the first electric push rod 3 drives the upper mold 4 to descend. During the descent, the upper mold 4 drives the gear 8 to descend and contact the rack 7, thereby causing the rotating rod 5 to rotate towards the rack 7. This rotates the heating component 12 from the bottom of the upper mold 4 to one side of the upper mold 4, without affecting the injection molding of the upper mold 4 and the lower mold 6. After injection molding, during the process of the upper mold 4 rising and resetting, the gear 8 rises and contacts the rack 7 again, causing the rotating rod 5 to rotate in the opposite direction, thereby resetting the heating component 12. After the injection molding cools down, the temperature inside the lower mold 6 decreases, making it easier to preheat the lower mold 6 again before the second injection molding, which is more convenient.
[0023] In a preferred embodiment, the air supply assembly 10 includes an air pump 1001, a filter 1003 installed on the air inlet end of the air pump 1001, and a connecting hose 1002 connected to the air outlet end of the air pump 1001.
[0024] It should be noted that the air pump 1001 can filter outside air through the filter 1003 and blow it into the connecting hose 1002, and then blow it into the main pipe 1201 through the connecting hose 1002.
[0025] In a preferred embodiment, the heating assembly 12 includes a main pipe 1201, a plurality of equally spaced branch pipes 1202 connected to the inner wall of the bottom of the main pipe 1201, and an electric heating coil 1203 installed on the inner wall of the branch pipes 1202.
[0026] It should be noted here that: the gas enters the main pipe 1201, is blown out from the branch pipe 1202, and is heated by the electric heating coil 1203 to form a hot airflow that is blown into the lower mold 6.
[0027] In a preferred embodiment, the extension assembly 13 includes a second electric push rod 1301, a connecting plate 1302 connected to the bottom of the piston rod of the second electric push rod 1301, and a plurality of extension tubes 1303 fixedly inserted into the top outer wall of the connecting plate 1302 at equal intervals.
[0028] It should be noted here that when blowing air into the lower mold 6, the piston rod of the second electric push rod 1301 can extend outward to drive the extension tube 1303 to move, thereby increasing the overall length of the extension tube 1303 and the branch tube 1202.
[0029] In a preferred embodiment, the end of the connecting hose 1002 away from the air pump 1001 is connected to the main pipe 1201.
[0030] It should be noted here that airflow can enter the main pipe 1201 through the connecting hose 1002.
[0031] In a preferred embodiment, a damping sleeve is installed at the end of the rotating rod 5 that is rotatably connected to the outer wall of the upper mold 4.
[0032] It should be noted here that a certain amount of force is required to make the rotating rod 5 rotate by setting the damping sleeve, so that the rotating rod 5 is more stable.
[0033] Working principle: The upper mold 4 can be driven by the first electric push rod 3 to descend and close onto the lower mold 6 to form a complete mold cavity for injection molding. Before the upper mold 4 descends, the air pump 1001 can filter the external air through the filter 1003 and blow it into the connecting hose 1002. Then, the air is blown into the main pipe 1201 through the connecting hose 1002. The gas enters the main pipe 1201 and is blown out from the branch pipe 1202. After being heated by the electric heating coil 1203, it forms a hot airflow that blows into the lower mold 6 to heat and remove dust from the interior of the lower mold 6, thereby raising the internal temperature of the lower mold 6.
[0034] When blowing air into the lower mold 6, the piston rod of the second electric push rod 1301 can extend outward to drive the extension tube 1303 to move, increasing the overall length of the extension tube 1303 and the branch tube 1202, reducing the flow distance of the hot air into the lower mold 6, reducing the diffusion of the hot air, and better heating and blowing away dust inside the lower mold 6, so that the internal temperature of the lower mold 6 rises and the dust inside is blown away. In subsequent injection molding, the fluid raw material flows more smoothly in the mold cavity, improving product quality.
[0035] After the lower mold 6 is preheated and dust-removed, the extension tube 1303 can be retracted by retracting the piston rod of the second electric push rod 1301. The first electric push rod 3 drives the upper mold 4 to descend. During the descent of the upper mold 4, the gear 8 descends and contacts the rack 7, thereby driving the rotating rod 5 to rotate towards the rack 7. This rotates the main tube 1201 from the bottom of the upper mold 4 to one side of the upper mold 4, without affecting the injection molding of the upper mold 4 and the lower mold 6. At the same time, during the process of the upper mold 4 rising and resetting after injection molding, the gear 8 rises and contacts the rack 7 again, driving the rotating rod 5 to rotate in the opposite direction, thereby resetting the main tube 1201. After the injection molding cools down, the temperature inside the lower mold 6 decreases, making it easier to preheat the lower mold 6 again before the second injection molding, which is more convenient.
[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A novel radiator fin forming mold, comprising: The base plate (1), the upper mold (4), and the lower mold (6) mounted on the base plate (1); The invention is characterized by further comprising: a bent plate (2) installed on the top outer wall of the base plate (1), wherein a first electric push rod (3) is installed on the top inner wall of the bent plate (2), and an upper mold (4) is installed at the bottom of the piston rod of the first electric push rod (3), a rotating rod (5) is rotatably installed on one side outer wall of the upper mold (4), and a rack (7) is installed on the top outer wall of the base plate (1), a gear (8) is installed on the outer wall of the rotating rod (5), and a column (9) is installed at one end of the top outer wall of the base plate (1), an air supply component (10) is installed at the top of the column (9), and an L-shaped plate (11) is installed at the bottom of the rotating rod (5), a heating component (12) is installed at one end of the L-shaped plate (11), and an extension component (13) is installed at the bottom of the L-shaped plate (11).
2. The novel radiator main plate forming mold according to claim 1, characterized in that: The air supply assembly (10) includes an air pump (1001), a filter (1003) installed on the air inlet end of the air pump (1001), and a connecting hose (1002) connected to the air outlet end of the air pump (1001).
3. The novel radiator main plate forming mold according to claim 2, characterized in that: The heating assembly (12) includes a main pipe (1201), a plurality of equally spaced branch pipes (1202) connected to the inner wall of the bottom of the main pipe (1201), and an electric heating coil (1203) installed on the inner wall of the branch pipes (1202).
4. The novel radiator main plate forming mold according to claim 3, characterized in that: The extension assembly (13) includes a second electric push rod (1301), a connecting plate (1302) connected to the bottom of the piston rod of the second electric push rod (1301), and multiple extension tubes (1303) fixedly inserted into the top outer wall of the connecting plate (1302) at equal intervals.
5. The novel radiator main plate forming mold according to claim 3, characterized in that: The end of the connecting hose (1002) away from the air pump (1001) is connected to the main pipe (1201).
6. The novel radiator main plate forming mold according to claim 1, characterized in that: A damping sleeve is installed at one end of the rotating rod (5) that is rotatably connected to the outer wall of the upper mold (4).