Air-inlet grille injection mold based on automobile parts
By using high-pressure gas and an electric telescopic rod in conjunction with a moving plate in the injection mold, the problem of indentation during material feeding in the injection mold is solved, and the aesthetics of the air intake grille are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-04-03
AI Technical Summary
Existing automotive parts injection molds for air intake grilles are prone to causing indentations on the freshly cooled air intake grilles during the blanking process, affecting their appearance.
High-pressure gas is blown out through the through-hole in the mold to blow the injection-molded air intake grille out of the mold groove, avoiding indentation on the contact surface of the newly cooled and formed air intake grille. This is combined with the use of an electric telescopic rod and a moving plate.
It improves the aesthetics of the air intake grille, avoids indentation problems during the material cutting process, and is easy to use.
Smart Images

Figure CN224074855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts manufacturing technology, specifically to an injection mold for an air intake grille based on automotive parts. Background Technology
[0002] A car grille is a mesh-like component with individual sections on the front of a car. The front grille is located between the front bumper and the front crossbeam of the vehicle. Because an engine hood lock needs to be installed on the upper surface of the front grille, the grille needs to have through holes to avoid the engine hood lock. Currently, car grille production requires the use of injection molds for molding.
[0003] Existing injection molds for automotive parts' air intake grilles often use push rods to cut the freshly cooled air intake grilles because it is difficult to cut them directly. However, the hardness of the freshly cooled air intake grille has not yet reached the standard hardness, so the push rods can easily cause indentations on the contact surface of the freshly cooled air intake grille, affecting its appearance and making it inconvenient to use. Utility Model Content
[0004] The purpose of this utility model is to provide an injection mold for an air intake grille based on automotive parts, which avoids indentation on the contact surface of the newly cooled and formed air intake grille, improves the appearance of the air intake grille, and is easy to use.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for an air intake grille based on automotive parts, comprising a base, a lower mold fixedly connected to the upper end face of the base, a mold groove formed on the upper end face of the lower mold, a cavity formed inside the lower mold, a plurality of evenly distributed through holes formed through the lower end of the mold groove, a movable plate disposed inside the cavity, a plurality of evenly distributed vertical rods fixedly connected to the upper end face of the movable plate and respectively matching the plurality of through holes, the other ends of the plurality of vertical rods extending into the plurality of through holes and flush with the lower end of the mold groove;
[0006] An upper mold that matches the lower mold is provided above the base.
[0007] In order to move the upper mold, as a preferred embodiment of the injection mold for an air intake grille based on automotive parts according to this utility model, the outer wall of the upper mold is fixedly connected to an installation plate, and a plurality of evenly distributed first electric telescopic rods are fixedly connected between the base and the installation plate.
[0008] In order to quickly cool down the air intake grille after injection molding in the mold groove, as a preferred embodiment of the air intake grille injection mold based on automotive parts of this utility model, the lower mold is fixedly connected to a cooling pipe surrounding the outside of the mold groove, and both ends of the cooling pipe extend to the outside of the lower mold.
[0009] To facilitate the injection of raw materials into the mold groove, in a preferred embodiment of the injection mold for an air intake grille based on automotive parts according to this utility model, an injection tube is fixedly connected to the upper end face of the upper mold, and the lower end of the injection tube penetrates through the upper mold.
[0010] In order to move the movable plate, as a preferred embodiment of the injection mold for the air intake grille of automotive parts according to this utility model, a second electric telescopic rod is installed on the lower end face of the base, and the output end of the second electric telescopic rod is fixedly connected to the movable plate.
[0011] In order to facilitate the delivery of high-pressure gas into the cavity, as a preferred embodiment of the injection mold for an air intake grille based on automotive parts according to this utility model, the left side wall of the lower mold is fixedly connected to a gas pipe communicating with the cavity.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] When unloading the injection-molded air intake grille, the second electric telescopic rod, in conjunction with the moving plate, drives multiple vertical rods to move out of multiple through holes. Then, the external high-pressure air pump is activated, and high-pressure gas is delivered to the cavity through air pipes. The gas is then ejected through multiple through holes, and the injection-molded air intake grille is blown out of the mold groove by the high-pressure gas. The high-pressure gas can avoid causing indentations on the contact surface of the newly cooled and formed air intake grille, improving the appearance of the air intake grille and making it easier to use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a front cross-sectional view of the present invention.
[0016] Figure 3 This is a side view sectional structural diagram of the present invention.
[0017] In the diagram: 1. Base; 2. Lower mold; 3. Mold groove; 4. Cavity; 5. Through hole; 6. Moving plate; 7. Vertical rod; 8. Upper mold; 9. Mounting plate; 10. First electric telescopic rod; 11. Cooling pipe; 12. Injection pipe; 13. Second electric telescopic rod; 14. Air pipe. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. Furthermore, in the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0019] Please see Figures 1 to 3 An injection mold for an air intake grille based on automotive parts includes a base 1, a lower mold 2 fixedly connected to the upper end face of the base 1, a mold groove 3 opened on the upper end face of the lower mold 2, a cavity 4 opened inside the lower mold 2, a plurality of evenly distributed through holes 5 through the lower end of the mold groove 3, a movable plate 6 arranged inside the cavity 4, a plurality of evenly distributed vertical rods 7 fixedly connected to the upper end face of the movable plate 6 and respectively matching the plurality of through holes 5, the other ends of the plurality of vertical rods 7 respectively extending into the plurality of through holes 5 and flush with the lower end of the mold groove 3;
[0020] An upper mold 8 that matches the lower mold 2 is provided above the base 1.
[0021] In this embodiment: when unloading the injection-molded air intake grille, the second electric telescopic rod 13, in conjunction with the moving plate 6, drives multiple vertical rods 7 to move out of multiple through holes 5 respectively (the vertical rods 7 can block the through holes 5 to prevent the injection molding material from entering the through holes 5). Then, the external high-pressure air pump is started, and the external high-pressure air pump delivers high-pressure gas to the cavity 4 through the air pipe 14, and then sprays it out through multiple through holes 5. In this way, the injection-molded air intake grille is blown out of the mold groove 3 by the high-pressure gas. The high-pressure gas can avoid causing indentations on the contact surface of the newly cooled and formed air intake grille, improve the appearance of the air intake grille, and facilitate its use.
[0022] As a technical optimization of this utility model, an installation plate 9 is fixedly connected to the outer wall of the upper mold 8, and a plurality of evenly distributed first electric telescopic rods 10 are fixedly connected between the base 1 and the installation plate 9.
[0023] In this embodiment, multiple first electric telescopic rods 10, together with the mounting plate 9, can drive the upper mold 8 to move.
[0024] As a technical optimization of this utility model, a cooling pipe 11 is fixedly connected inside the lower mold 2 and surrounds the outside of the mold groove 3. Both ends of the cooling pipe 11 extend to the outside of the lower mold 2.
[0025] In this embodiment, the cooling pipe 11 can be connected to the outlet and return ends of an external chiller. The cold water flowing through the cooling pipe 11 can then rapidly cool the air intake grille that has been injection molded in the mold groove 3, causing the air intake grille to solidify quickly.
[0026] As a technical optimization of this utility model, an injection tube 12 is fixedly connected to the upper end face of the upper mold 8, and the lower end of the injection tube 12 passes through the upper mold 8.
[0027] In this embodiment, the injection tube 12 facilitates the injection of raw materials into the mold groove 3.
[0028] As a technical optimization of this utility model, a second electric telescopic rod 13 is installed on the lower end face of the base 1, and the output end of the second electric telescopic rod 13 is fixedly connected to the moving plate 6.
[0029] In this embodiment: the second electric telescopic rod 13 can drive the moving plate 6 to move.
[0030] As a technical optimization of this utility model, the left side wall of the lower mold 2 is fixedly connected to an air pipe 14 that communicates with the cavity 4.
[0031] In this embodiment, the air pipe 14 facilitates the delivery of high-pressure gas into the cavity 4.
[0032] Working principle: In use, first connect the outlet and return ends of the external chiller to both ends of the cooling pipe 11. Then connect the external high-pressure air pump to the air pipe 14. Then, multiple first electric telescopic rods 10, in conjunction with the mounting plate 9, drive the upper mold 8 downwards and tightly abut against the lower mold 2. Then, inject raw materials into the mold groove 3 through the injection pipe 12. After injection molding is completed, start the external chiller. The external chiller delivers cold water to the cooling pipe 11. The cold water rapidly cools and lowers the temperature of the air intake grille that has been injected into the mold groove 3, causing the air intake grille to solidify quickly. Then, multiple first electric telescopic rods 10, in conjunction with the mounting plate 9, drive the upper mold 8 downwards and tightly abut against the lower mold 2. The upper mold 8 moves upward to its reset position, and then the second electric telescopic rod 13 retracts. The second electric telescopic rod 13, together with the moving plate 6, drives multiple vertical rods 7 to move out of multiple through holes 5 respectively (the vertical rods 7 can block the through holes 5 to prevent the injection molding material from entering the through holes 5). Then, the external high-pressure air pump is started. The external high-pressure air pump delivers high-pressure gas to the cavity 4 through the air pipe 14, and then sprays it out through multiple through holes 5. The high-pressure gas blows the injection-molded air intake grille out of the mold groove 3. The high-pressure gas can avoid causing indentations on the contact surface of the newly cooled and formed air intake grille, improve the appearance of the air intake grille, and facilitate its use.
[0033] Then the second electric telescopic rod 13, together with the moving plate 6, drives multiple vertical rods 7 to reset and proceed with the next injection molding;
[0034] The air intake grille injection mold is controlled by an external control system.
[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An injection mold for an air intake grille based on an automobile accessory, comprising a base (1), characterized in that: The upper end surface of the base (1) is fixedly connected with a lower mold (2), the upper end surface of the lower mold (2) is provided with a mold groove (3), the inside of the lower mold (2) is provided with a cavity (4), the left side wall of the lower mold (2) is fixedly connected with an air pipe (14) in communication with the cavity (4), the inside of the mold groove (3) is provided with a plurality of uniformly distributed through holes (5) penetrating the lower end, the inside of the cavity (4) is provided with a moving plate (6), the upper end surface of the moving plate (6) is fixedly connected with a plurality of uniformly distributed vertical rods (7) respectively matched with the plurality of through holes (5), the other ends of the plurality of vertical rods (7) respectively extend into the plurality of through holes (5) and are flush with the inside lower end of the mold groove (3). The upper end surface of the base (1) is fixedly connected with a lower mold (2), the upper end surface of the lower mold (2) is provided with a mold groove (3), the inside of the lower mold (2) is provided with a cavity (4), the left side wall of the lower mold (2) is fixedly connected with an air pipe (14) in communication with the cavity (4), the inside of the mold groove (3) is provided with a plurality of uniformly distributed through holes (5) penetrating the lower end, the inside of the cavity (4) is provided with a moving plate (6), the upper end surface of the moving plate (6) is fixedly connected with a plurality of uniformly distributed vertical rods (7) respectively matched with the plurality of through holes (5), the other ends of the plurality of vertical rods (7) respectively extend into the plurality of through holes (5) and are flush with the inside lower end of the mold groove (3).
2. The injection mold for air grille based on automobile parts according to claim 1, characterized in that: The upper end surface of the base (1) is fixedly connected with a lower mold (2), the upper end surface of the lower mold (2) is provided with a mold groove (3), the inside of the lower mold (2) is provided with a cavity (4), the left side wall of the lower mold (2) is fixedly connected with an air pipe (14) in communication with the cavity (4), the inside of the mold groove (3) is provided with a plurality of uniformly distributed through holes (5) penetrating the lower end, the inside of the cavity (4) is provided with a moving plate (6), the upper end surface of the moving plate (6) is fixedly connected with a plurality of uniformly distributed vertical rods (7) respectively matched with the plurality of through holes (5), the other ends of the plurality of vertical rods (7) respectively extend into the plurality of through holes (5) and are flush with the inside lower end of the mold groove (3).
3. The injection mold for air grille based on automobile parts according to claim 1, characterized in that: The upper end surface of the base (1) is fixedly connected with a lower mold (2), the upper end surface of the lower mold (2) is provided with a mold groove (3), the inside of the lower mold (2) is provided with a cavity (4), the left side wall of the lower mold (2) is fixedly connected with an air pipe (14) in communication with the cavity (4), the inside of the mold groove (3) is provided with a plurality of uniformly distributed through holes (5) penetrating the lower end, the inside of the cavity (4) is provided with a moving plate (6), the upper end surface of the moving plate (6) is fixedly connected with a plurality of uniformly distributed vertical rods (7) respectively matched with the plurality of through holes (5), the other ends of the plurality of vertical rods (7) respectively extend into the plurality of through holes (5) and are flush with the inside lower end of the mold groove (3).
4. The injection mold for air grille based on automobile parts according to claim 1, characterized in that: The upper end surface of the base (1) is fixedly connected with a lower mold (2), the upper end surface of the lower mold (2) is provided with a mold groove 5. The injection mold for air grille based on automobile parts according to claim 1, characterized in that: