An injection mold for an automobile grille

Abstract

This utility model provides an injection mold for an automotive grille, comprising: a worktable, on which a lifting unit is provided, the lifting unit including a lifting push rod and a guide rod assembly, the end of the lifting push rod being fixedly connected to a mounting plate, the mounting plate being slidably connected to the guide rod assembly, an upper mold being provided on the mounting plate, and a lower mold being provided on the worktable directly below the upper mold, with an air blowing assembly and a cooling assembly respectively provided on both sides of the lower mold. The injection mold for an automotive grille provided by this utility model utilizes the coordinated action of the lifting push rod and the guide rod assembly to ensure precise alignment of the upper and lower molds during the lifting and closing process; the air blowing assembly effectively assists in the separation of the plastic part, reducing adhesion problems; the cooling assembly accelerates the cooling and solidification of the plastic part and recycles cooling water, improving efficiency and saving resources; and the demolding assembly, while ensuring balanced force on the automotive grille plastic part, smoothly ejects the molded workpiece from the injection cavity.

Description

Technical Field

[0001] This utility model relates to the field of injection molding production technology for automotive parts, and in particular to an injection mold for automotive grilles. Background Technology

[0002] Injection molding is a method of shaping industrial products. Products are usually made using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression molding and die casting. An injection molding machine is the main molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting materials. Injection molding is achieved through an injection molding machine and a mold.

[0003] The following problems often exist in the production of automotive grille injection molds: when the mold is closed, the upper mold and the lower mold are prone to misalignment, which leads to deviations in the size of the plastic part. Furthermore, when demolding, the plastic part may stick to the mold cavity, and uneven stress may cause the grille mesh to break and deform.

[0004] Therefore, it is necessary to provide an injection mold for automotive grilles to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides an injection mold for automotive grilles, which solves the problems of misalignment between the upper and lower molds during mold closing, resulting in dimensional deviations in the plastic parts, adhesion during demolding, and uneven stress leading to workpiece deformation.

[0006] To solve the above-mentioned technical problems, this utility model provides an injection mold for an automotive grille, comprising: a worktable, a lifting part provided on the worktable, the lifting part including a lifting push rod and a guide rod assembly, an installation plate fixedly connected to the end of the lifting push rod, the installation plate being slidably connected to the guide rod assembly, an upper mold provided on the installation plate, a lower mold provided on the worktable directly below the upper mold, an air blowing assembly and a cooling assembly respectively provided on both sides of the lower mold, and a demolding assembly provided at the bottom of the worktable, the demolding assembly being directly below the lower mold.

[0007] Preferably, the upper mold includes a raw material box, the upper part of which is provided with a feed port, the lower part of which is provided with an upper mold base, a first mold cavity is provided below the upper mold base, the upper part of the first mold cavity is provided with an injection port communicating with the raw material box, and a positioning hole is provided on the lower surface of the upper mold base.

[0008] Preferably, the lower mold includes a base and a lower mold base. The base has an installation cavity corresponding to the lower mold base, and the lower mold base has a second mold cavity. A docking block is provided at the corner of the installation cavity, a fixing member corresponding to the docking block is provided at the corner of the lower mold base, and a positioning post corresponding to the positioning hole is provided at the corner of the base.

[0009] Preferably, the air blowing assembly includes a blower, with air inlet pipes on both sides of the blower, the ends of the air inlet pipes being fixedly connected to both sides of the base, air blowing channels on both sides of the mounting cavity, the air blowing channels corresponding to the air inlet pipes, and a sealing block fixedly connected to the lower part of the upper mold base, the sealing block corresponding to the air blowing channels.

[0010] Preferably, the cooling assembly includes a water tank and a cooling pipe, with the two ends of the cooling pipe being an inlet and a return end, respectively. A cooling chamber is formed in the lower part of the mounting cavity, and the cooling pipe is located inside the cooling chamber.

[0011] Preferably, the demolding assembly includes a U-shaped frame, on which a lifting push rod is provided. The upper end of the lifting push rod is fixedly connected to a lifting seat. Multiple sets of lifting rods are fixedly connected to the lifting seat. Lifting holes are provided on both the base and the lower mold base, and the lifting rods correspond to the lifting holes.

[0012] Compared with related technologies, the injection mold for an automotive grille provided by this utility model has the following advantages:

[0013] Beneficial effects:

[0014] This utility model provides an injection mold for an automotive grille. The lifting push rod and guide rod assembly work together to ensure that the upper mold and the lower mold are accurately aligned during the lifting and closing process. The air blowing assembly effectively assists in the separation of the plastic parts and reduces adhesion problems. The cooling assembly accelerates the cooling and shaping of the plastic parts and recycles the cooling water, improving efficiency and saving resources. The demolding assembly ensures that the automotive grille plastic parts are subjected to balanced forces while smoothly ejecting the molded workpiece from the injection cavity. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of an injection mold for an automotive grille provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the upper mold in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the base, air blowing assembly, cooling assembly and demolding assembly in this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the lower mold base in this utility model.

[0019] The diagram is labeled as follows: 1. Workbench, 2. Lifting unit, 21. Lifting push rod, 22. Mounting plate, 23. Guide rod assembly, 3. Upper mold, 31. Raw material box, 32. Feed port, 33. Upper mold base, 34. First mold cavity, 35. Injection port, 36. Positioning hole, 37. Sealing block, 4. Lower mold, 41. Base, 42. Mounting cavity, 43. Lower mold base, 44. Second mold cavity, 45. Connecting block, 46. Fixing component, 47. Positioning column, 48. Air blowing channel, 49. Cooling cavity, 410. Lifting hole, 5. Air blowing assembly, 51. Fan, 52. Air inlet pipe, 6. Cooling assembly, 61. Water tank, 62. Cooling pipe, 63. Water inlet end, 64. Return end, 7. Demolding assembly, 71. U-shaped frame, 72. Lifting push rod, 73. Lifting seat, 74. Lifting rod. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of an injection mold for an automotive grille provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the upper mold in this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the base, air blowing assembly, cooling assembly and demolding assembly in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the lower mold base in this utility model.

[0025] An injection mold for an automotive grille includes: a worktable 1, on which a lifting part 2 is provided, the lifting part 2 including a lifting push rod 21 and a guide rod assembly 23, the end of the lifting push rod 21 being fixedly connected to a mounting plate 22, the mounting plate 22 being slidably connected to the guide rod assembly 23, an upper mold 3 being provided on the mounting plate 22, a lower mold 4 being provided on the worktable 1 directly below the upper mold 3, an air blowing assembly 5 and a cooling assembly 6 being provided on both sides of the lower mold 4, and a demolding assembly 7 being provided at the lower part of the worktable 1, the demolding assembly 7 being located directly below the lower mold 4.

[0026] The lifting push rod 21 of the lifting part 2 drives the mounting plate 22 and the upper mold 3 to rise and fall. The guide rod group 23 assists in guiding, so that the upper mold 3 and the lower mold 4 can be accurately closed. After the raw material is replenished by the upper mold 3, it is injection molded through the complete cavity formed by the upper mold 3 and the lower mold 4. When preparing to open the mold, the cooling component 6 is activated to circulate and cool the plastic part. The air blowing component 5 generates airflow, which is blown to the plastic part through the lower mold 4 to assist in separation. Finally, the demolding component 7 pushes the plastic part to complete the demolding.

[0027] The upper mold 3 includes a raw material box 31, with a feed port 32 at the top of the raw material box 31 and an upper mold base 33 at the bottom of the raw material box 31. A first mold cavity 34 is opened below the upper mold base 33, and an injection port 35 communicating with the raw material box 31 is provided at the top of the first mold cavity 34. A positioning hole 36 is opened on the lower surface of the upper mold base 33.

[0028] The raw material box 31 can store injection molding raw materials, the feed port 32 replenishes the raw materials, and the raw materials enter the first mold cavity 34 through the injection port 35 for molding the corresponding part of the upper half of the car grille.

[0029] The lower mold 4 includes a base 41 and a lower mold base 43. The base 41 has an installation cavity 42 corresponding to the lower mold base 43. The lower mold base 43 has a second mold cavity 44. A docking block 45 is provided at the corner of the installation cavity 42. A fixing member 46 corresponding to the docking block 45 is provided at the corner of the lower mold base 43. A positioning post 47 corresponding to the positioning hole 36 is provided at the corner of the base 41.

[0030] The mounting cavity 42 on the base 41 provides mounting space for the lower mold base 43. The second mold cavity 44 on the lower mold base 43 and the first mold cavity 34 of the upper mold 3 together form a complete cavity. The mating block 45 and the fixing piece 46 cooperate to firmly fix the lower mold base 43. The positioning pin 47 corresponds to the positioning hole 36, which further enhances the mold closing and positioning effect and ensures the dimensional accuracy of the grille.

[0031] The air blowing assembly 5 includes a blower 51, with air inlet pipes 52 on both sides of the blower 51. The ends of the air inlet pipes 52 are fixedly connected to both sides of the base 41. Air blowing channels 48 are provided on both sides of the mounting cavity 42, and the air blowing channels 48 correspond to the air inlet pipes 52. A sealing block 37 is fixedly connected to the lower part of the upper mold base 33, and the sealing block 37 corresponds to the air blowing channels 48.

[0032] The airflow generated by the blower 51 acts on the plastic part through the air inlet pipe 52 and the air blowing channel 48. During the mold closing and injection molding process, the sealing block 37 blocks the air blowing channel 48 to prevent the raw material from entering and causing blockage. After the mold opens, the sealing block 37 rises with the upper mold 3, and the air blowing channel 48 becomes unobstructed. At this time, air blowing begins to assist the separation of the plastic part from the mold and reduce adhesion.

[0033] The cooling assembly 6 includes a water tank 61 and a cooling pipe 62. The two ends of the cooling pipe 62 are a water inlet 63 and a return end 64, respectively. A cooling chamber 49 is provided at the lower part of the mounting cavity 42, and the cooling pipe 62 is located inside the cooling chamber 49.

[0034] Water tank 61 provides circulating cooling water to cooling pipe 62. The cooling water input from water inlet 63 flows in cooling pipe 62 in cooling chamber 49, absorbs heat in the mold and flows back to water tank 61 via return end 64 for recycling, accelerating the cooling and shaping of the grille. Furthermore, auxiliary cooling structural components can be added to water tank 61 to accelerate the cooling of the cooling water.

[0035] The demolding assembly 7 includes a U-shaped frame 71, on which a lifting push rod 72 is provided. The upper end of the lifting push rod 72 is fixedly connected to a lifting seat 73. Multiple sets of lifting rods 74 are fixedly connected to the lifting seat 73. Both the base 41 and the lower mold base 43 are provided with lifting holes 410, and the lifting rods 74 correspond to the lifting holes 410.

[0036] The lifting push rod 72 drives the lifting seat 73 and the lifting rod 74 to rise and fall. The lifting rod 74 pushes the plastic part through the lifting hole 410. Multiple sets of lifting rods 74 are evenly distributed to ensure that the plastic part is subjected to balanced force and avoid deformation or damage during demolding.

[0037] The working principle of the injection mold for an automotive grille provided by this utility model is as follows:

[0038] The lifting push rod 21 of the lifting part 2 drives the mounting plate 22 and the upper mold 3 to rise and fall. The guide rod group 23 assists in guiding, so that the upper mold 3 and the lower mold 4 can be accurately closed. After the raw material is replenished by the upper mold 3, it is injection molded through the complete cavity formed by the upper mold 3 and the lower mold 4. When preparing to open the mold, the cooling component 6 is activated to circulate and cool the plastic part. The air blowing component 5 generates airflow, which is blown to the plastic part through the lower mold 4 to assist in separation. Finally, the demolding component 7 pushes the plastic part to complete the demolding.

[0039] Compared with related technologies, the injection mold for an automotive grille provided by this utility model has the following advantages:

[0040] Beneficial effects:

[0041] The lifting push rod 21 and the guide rod assembly 23 work together to ensure that the upper mold 3 and the lower mold 4 are precisely aligned during the lifting and closing process. The air blowing assembly 5 effectively assists in the separation of plastic parts and reduces adhesion problems. The cooling assembly 6 accelerates the cooling and shaping of plastic parts and recycles cooling water, improving efficiency and saving resources. The demolding assembly 7 ensures that the plastic parts of the car grille are subjected to balanced forces while smoothly pushing the molded workpiece out of the injection cavity.

[0042] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An injection mold for an automobile grille, characterized in that, include: A workbench is provided with a lifting unit, which includes a lifting push rod and a guide rod assembly. The end of the lifting push rod is fixedly connected to a mounting plate, and the mounting plate is slidably connected to the guide rod assembly. An upper mold is provided on the mounting plate, and a lower mold is provided on the workbench directly below the upper mold. An air blowing assembly and a cooling assembly are respectively provided on both sides of the lower mold. A demolding assembly is provided at the bottom of the workbench, and the demolding assembly is located directly below the lower mold.

2. The injection mold for an automobile grille according to claim 1, characterized in that, The upper mold includes a raw material box, with a feed port at the top and an upper mold base at the bottom. A first mold cavity is formed at the bottom of the upper mold base, and an injection port communicating with the raw material box is formed at the top of the first mold cavity. A positioning hole is formed on the lower surface of the upper mold base.

3. The injection mold for an automobile grille according to claim 2, characterized in that, The lower mold includes a base and a lower mold base. The base has an installation cavity corresponding to the lower mold base, and the lower mold base has a second mold cavity. A docking block is provided at the corner of the installation cavity, a fixing component corresponding to the docking block is provided at the corner of the lower mold base, and a positioning post corresponding to the positioning hole is provided at the corner of the base.

4. The injection mold for an automobile grille according to claim 3, characterized in that, The air blowing assembly includes a blower, with air inlet pipes on both sides of the blower. The ends of the air inlet pipes are fixedly connected to both sides of the base. Air blowing channels are provided on both sides of the mounting cavity, and the air blowing channels correspond to the air inlet pipes. A sealing block is fixedly connected to the lower part of the upper mold base, and the sealing block corresponds to the air blowing channel.

5. The injection mold for an automobile grille according to claim 3, characterized in that, The cooling assembly includes a water tank and a cooling pipe. The two ends of the cooling pipe are an inlet and a return end, respectively. A cooling chamber is provided in the lower part of the mounting cavity, and the cooling pipe is located inside the cooling chamber.

6. The injection mold for an automobile grille according to claim 3, characterized in that, The demolding assembly includes a U-shaped frame with a lifting push rod on it. The upper end of the lifting push rod is fixedly connected to a lifting seat, and multiple sets of lifting rods are fixedly connected to the lifting seat. Lifting holes are provided on both the base and the lower mold base, and the lifting rods correspond to the lifting holes.

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