Automobile door panel forming die facilitating exhaust

Abstract

The utility model discloses a car door panel forming die convenient to exhaust, car door panel forming die includes upper die, lower die, a plurality of exhaust ducts, injection tube, upper die detachably installs at the top of lower die, and the inside of upper die and lower die forms the door panel forming cavity of injection forming car door panel, injection tube is located at the top center position of upper die, and injection tube is opened from the top and has the pouring gate of injection tube, and the bottom of injection tube is located at the door panel forming cavity, and a plurality of exhaust ducts are located on the upper die and distribute at the periphery of injection tube, and every exhaust duct is equipped with exhaust hole, and the lower end of every exhaust duct is from upper die and penetrates to the door panel forming cavity, and the exhaust hole of every exhaust duct is communicated with the door panel forming cavity. The utility model discloses through the exhaust duct that evenly distributed around injection tube can promptly, evenly exhaust the gas in the door panel forming cavity, and improve car door panel production quality.

Description

Technical Field

[0001] This utility model relates to the field of automotive door panel processing technology, specifically to an automotive door panel forming mold that facilitates exhaust. Background Technology

[0002] In the manufacturing process of automotive door panels, injection molding is typically used. This involves injecting molten plastic into the mold cavity under high pressure using an injection molding machine. The screw or plunger of the injection molding machine applies high pressure, forcing the molten material into the closed, enclosed mold cavity at high speed. The molten material cools and solidifies (shapes) within the mold cavity, forming an automotive door panel component that conforms to the shape of the mold cavity. Therefore, the injection mold is a key piece of equipment for achieving the injection molding of automotive door panels, and its structural design directly affects the molding quality and production efficiency of the automotive door panel.

[0003] Existing automotive door panel molds mainly consist of an upper mold, a lower mold, and an injection molded part. The upper and lower molds are joined together to form a cavity. Molten material is injected into the cavity through the injection molded part, where it cools and solidifies (shapes) to form the automotive door panel component.

[0004] Existing automotive door panel molds have some shortcomings in use:

[0005] When injecting molten material, the gas inside the mold cavity is difficult to expel, which can easily lead to bubbles and surface defects in the molded car door panels, affecting the product quality of the car door panels. Utility Model Content

[0006] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing an automotive door panel molding mold that allows gas to be discharged from the door panel molding cavity in a timely manner through evenly distributed exhaust pipes around the injection tube during the process of the molten injection solution being injected from the injection tube in the center of the upper mold and flowing to the periphery of the door panel molding cavity, thereby improving the production quality of automotive door panels.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A car door panel molding mold for easy venting includes an upper mold, a lower mold, several venting pipes, and an injection tube. The upper mold is detachably installed above the lower mold. The upper and lower molds form a door panel molding cavity for injection molding of the car door panel. The injection tube is located at the top center of the upper mold. The injection tube has a pouring port extending through it from its top end. The bottom end of the injection tube is located at the door panel molding cavity so that the pouring port communicates with the door panel molding cavity. Several venting pipes are located on the upper mold and distributed around the outer periphery of the injection tube. Each venting pipe has a vent hole. The lower end of each venting pipe extends from the upper mold to the door panel molding cavity. The vent hole of each venting pipe communicates with the door panel molding cavity.

[0009] Furthermore, a positioning component is provided between the upper mold and the lower mold. The positioning component includes a plurality of positioning posts and positioning slots that cooperate with the plurality of positioning posts. The plurality of positioning posts are fixed around the lower mold, and the positioning slots are provided around the upper mold.

[0010] Furthermore, the upper mold has an upper forming cavity, the lower mold has a lower forming cavity, and the door panel forming cavity is formed after the upper mold and the lower mold are joined together.

[0011] Furthermore, the automotive door panel forming mold includes a support mold frame, which is fixed below the lower mold.

[0012] Furthermore, the automotive door panel forming mold includes several sets of movable wheels, which are respectively fixed at the four corners of the bottom of the support mold frame.

[0013] Furthermore, vertical reinforcing rods are fixed on both sides of the support frame.

[0014] Furthermore, a fixing frame is installed above the upper mold, and the fixing frame is fixed to the four periphery above the upper mold and located on the outer periphery of several exhaust pipes.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1) The automotive door panel molding die of this utility model includes an upper mold, a lower mold, several venting pipes, and an injection pipe. The upper mold is detachably installed above the lower mold. The interiors of the upper and lower molds form a door panel molding cavity to facilitate injection molding of the automotive door panel. The injection pipe is located at the center of the top of the upper mold, and has a pouring port extending through it from its top. The bottom end of the injection pipe is located at the door panel molding cavity so that the pouring port communicates with the cavity. Several venting pipes are located on the upper mold and distributed around the outer periphery of the injection pipe. Each venting pipe has a vent hole, and the lower end of each venting pipe extends from the upper mold into the door panel molding cavity. The vent hole of each venting pipe communicates with the door panel molding cavity. This utility model, through the evenly distributed venting pipes around the injection pipe, can promptly discharge the gas in the door panel molding cavity, achieving uniform venting area, improving venting effect, and enhancing the production quality of automotive door panels.

[0017] 2) The automotive door panel forming mold of this utility model includes a supporting mold frame, which is fixed below the lower mold. Vertical reinforcing rods are fixed on both sides of the supporting mold frame. This utility model can increase the overall stability of the supporting mold frame through the vertical reinforcing rods, so that the supporting mold frame can better resist lateral forces when subjected to various loads, and prevent the supporting mold frame from tilting or collapsing. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of the automobile door panel forming mold of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the automobile door panel forming mold of this utility model from another angle;

[0020] Figure 3 This is a schematic diagram of the mold structure for the automotive door panel forming mold of this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the mold structure for the automotive door panel forming mold of this utility model. Figure 2 ;

[0022] Figure 5 This is a schematic diagram showing the relationship between the exhaust pipe and the automotive door panel forming mold of this utility model.

[0023] In the figure, there are: upper mold 1, upper mold forming cavity 11, lower mold 2, lower mold forming cavity 21, vent pipe 3, vent hole 31, injection pipe 4, pouring gate 41, positioning component 5, positioning post 51, positioning slot 52, support mold frame 6, vertical reinforcing rod 61, moving wheel 7, fixed frame 8, rectangular fixed frame 81, and support steel beam 82. Detailed Implementation

[0024] like Figures 1-5This utility model provides a car door panel molding mold that facilitates venting. The car door panel molding mold includes an upper mold 1, a lower mold 2, several vent pipes 3, and injection pipes 4. The upper mold 1 is detachably installed above the lower mold 2. The upper mold 1 and the lower mold 2 have door panel molding cavities that facilitate injection molding to form the car door panel. Specifically, an upper mold molding cavity 11 is formed inside the upper mold 1, and a lower mold molding cavity 21 is formed inside the lower mold 2. The door panel molding cavity is formed after the upper mold 1 and the lower mold 2 are closed. The injection tube 4 is located at the top center of the upper mold 1. The injection tube 4 has a pouring port 41 that runs through it from the top. The bottom end of the injection tube 4 is located at the door panel molding cavity so that the pouring port 41 can communicate with the door panel molding cavity. Several venting pipes 3 are located on the upper mold 1 and distributed around the outer periphery of the injection tube 4. Each venting pipe 3 has a venting hole 31. The lower end of each venting pipe 3 runs through the upper mold 1 to the door panel molding cavity. The venting hole 31 of each venting pipe 3 is connected to the door panel molding cavity. The automotive door panel molding die of this utility model has several venting pipes 3 surrounding the injection tube 4. When the molten injection solution is injected from the injection tube 4 in the center of the upper mold and flows to the periphery of the door panel molding cavity, the gas can be discharged from the door panel molding cavity in a timely manner through the venting pipes 3 evenly distributed around the injection tube 4. This circumferentially distributed venting structure design achieves the shortest venting path and uniform venting area, which can realize the uniform and rapid discharge of gas, improve the venting effect, avoid the risk of defects such as bubbles and incomplete filling on the surface of the molded plastic part (automotive door panel), and improve the processing quality and structural strength of automotive door panel products.

[0025] In a specific implementation of this invention, a positioning component 5 is provided between the upper mold 1 and the lower mold 2. The positioning component 5 includes a plurality of positioning posts 51 and positioning slots 52 that cooperate with the positioning posts 51. The positioning posts 51 are fixed around the lower mold 2, and the positioning slots 52 are disposed around the upper mold 1. By setting the positioning component 5, the upper mold 1 and the lower mold 2 can be accurately aligned when the molds are closed, thereby improving the sealing of the door panel molding cavity and the molding quality of the automotive door panel.

[0026] In this embodiment of the invention, the automotive door panel forming mold includes a support mold frame 6, which is fixed below the lower mold 2 and provides support for the lower mold 2. Vertical reinforcing rods 61 are fixed on both sides of the support mold frame 6. The vertical reinforcing rods 61 increase the overall stability of the support mold frame 6, enabling it to better resist lateral forces when subjected to various loads, preventing tilting or collapse. The vertical reinforcing rods 61 also prevent deformation of the support mold frame 6, maintaining good rigidity during stress and reducing deformation caused by load.

[0027] In a specific implementation, the automotive door panel forming mold of this utility model also includes several sets of movable wheels 7, which are respectively fixed at the four corners of the bottom of the support mold frame 6. Specifically, the automotive door panel forming mold is equipped with four sets of movable wheels 7, which are movable wheels 7 with braking components. By installing movable wheels 7 at the bottom of the support mold frame 6, it is convenient to move and transport the entire automotive door panel forming mold. Operators can easily push or pull the automotive door panel forming mold to move it, which greatly saves the time and labor costs of moving and transporting, improves the flexibility and convenience of using the automotive door panel forming mold, and improves production and processing efficiency.

[0028] This invention features a fixing frame 8 installed above the upper mold 1. The fixing frame 8 is fixed to the four perimeter of the upper mold 1 and located on the outer periphery of several exhaust pipes 3. Specifically, the fixing frame 8 includes a rectangular fixing frame 81 and several supporting steel beams 82. The supporting steel beams 82 are distributed around the four perimeter of the upper mold 1. The bottom of each supporting steel beam 82 is fixed to the top of the upper mold 1, and the top of each supporting steel beam 82 is fixed to the bottom of the rectangular fixing frame 81. By setting the fixing frame 8 on the outer periphery of the several exhaust pipes 3, the exhaust pipes 3 can be effectively protected, preventing them from being impacted by external forces during handling and operation, extending the service life of the automotive door panel forming mold, and reducing maintenance costs. The fixing frame 8 not only protects the several exhaust pipes 3 but also enhances the rigidity and stability of the upper mold 1 and even the entire automotive door panel forming mold.

[0029] Regarding the venting process of the automotive door panel forming mold of this utility model:

[0030] Molten injection solution (such as PVC slurry or TPO) is injected into the injection port 41 of the injection pipe 4. The molten injection solution flows into the molding cavity. During the filling process of the molten injection solution, the air in the door panel molding cavity is discharged through several exhaust pipes 3 around the injection pipe 4. Excess molten injection solution can flow out of the molding cavity through the exhaust hole 31 of the exhaust pipe 3. After injection molding is completed, the door panel is shaped and formed inside the door panel molding cavity.

[0031] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. An automobile door panel forming mold facilitating exhaust, characterized by: The automobile door plate forming die comprises an upper die, a lower die, a plurality of exhaust pipes and an injection pipe. The upper die is detachably installed above the lower die. The interior of the upper die and the lower die is formed with a door plate forming cavity for facilitating injection forming of the automobile door plate. The injection pipe is arranged at the center of the top of the upper die. The injection pipe is provided with a pouring opening penetrating the injection pipe at the top end. The bottom end of the injection pipe is located at the door plate forming cavity so that the pouring opening is in communication with the door plate forming cavity. The plurality of exhaust pipes are arranged on the upper die and distributed around the periphery of the injection pipe. Each exhaust pipe is provided with an exhaust hole. The lower end of each exhaust pipe penetrates the upper die to the door plate forming cavity. The exhaust hole of each exhaust pipe is in communication with the door plate forming cavity.

2. The automotive door panel forming mold facilitating venting according to claim 1, characterized in that: A positioning assembly is arranged between the upper die and the lower die. The positioning assembly comprises a plurality of positioning columns and a plurality of positioning clamping grooves matched with the positioning columns. The plurality of positioning columns are fixed around the lower die. The plurality of positioning clamping grooves are arranged around the upper die.

3. The automotive door panel forming mold facilitating venting of claim 1, wherein: The interior of the upper die is formed with an upper die forming cavity. The interior of the lower die is formed with a lower die forming cavity. The door plate forming cavity is formed after the upper die and the lower die are closed.

4. The automotive door panel forming mold facilitating venting of claim 1, wherein: The automobile door plate forming die comprises a support die frame. The support die frame is fixed below the lower die.

5. The automotive door panel forming mold facilitating venting of claim 4, wherein: The automobile door plate forming die comprises a plurality of groups of moving wheels. The plurality of groups of moving wheels are respectively fixed at the four corners of the bottom of the support die frame.

6. The automotive door panel forming mold facilitating venting of claim 4, wherein: Vertical reinforcing rods are fixed at the two side edges of the support die frame.

7. The automotive door panel forming mold facilitating venting of claim 1, wherein: A fixing frame is installed above the upper die. The fixing frame is fixed around the four edges of the upper die above the upper die and located around the periphery of the plurality of exhaust pipes.

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