Pipe pre-exhaust based double-color injection mold for automobile trim panel

Abstract

The utility model discloses an automobile trim panel double-color injection mold based on pipeline pre-exhaust, and relates to the field of injection molds, the automobile trim panel double-color injection mold comprises an injection mold main body, the upper end of the injection mold main body is fixedly provided with a limiting assembly, and the limiting assembly is composed of a mounting square rod, an anti-falling baffle and a conical spring; the anti-disengaging baffle is fixedly installed at the upper end of the installation square rod, the installation square rod is sleeved with the conical spring, the exhaust assembly is inserted into the injection mold body and composed of two funnels, exhaust pipes and a connecting plate, the two funnels are symmetrically and fixedly installed at the two ends of the connecting plate, and the two exhaust pipes are fixedly installed at the lower ends of the two funnels respectively. According to the injection mold, the exhaust assembly is arranged on the injection mold main body, and when molten plastic is injected into the mold cavity of the injection mold main body, air in the mold cavity of the injection mold main body can be exhausted through the exhaust assembly, so that residual air in the injection mold main body can be reduced, and the quality of an injection-molded product can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold field especially relates to a kind of automobile trim panel double-color injection mold based on pipeline pre-bleeding. BACKGROUND

[0002] Double-color injection molding is a technique that combines two types of plastics (or different colored plastics) into one during the injection molding process. The basic principle is to use the rotation of the mold and the two nozzles of the injection machine. After the first injection, the mold is rotated one hundred and eighty degrees, and then the second injection is performed. In this way, two different colored plastics can be combined together in one molding process to form a double-color effect. Automobile trim panel double-color injection mold is a key process in the automotive manufacturing industry for producing automobile trim panels with double-color or double-material effects. Automobile trim panel double-color injection mold is widely used in the production of automotive interior parts, such as door handles, instrument panel trim strips, etc. These trim panels not only enhance the atmosphere inside the car, but also increase the convenience of use. At the same time, double-color injection molding technology makes these trim panels have a rich and colorful appearance selection, meeting the needs of consumers for the beauty of automotive interiors. When injecting molten plastic into the mold, air often remains in the mold, which can cause poor quality of the injection molded product. Therefore, a double-color injection mold for automobile trim panels based on pipeline pre-bleeding is needed to solve the above problems. SUMMARY

[0003] The main purpose of the utility model is to provide a double-color injection mold for automobile trim panels based on pipeline pre-bleeding, which can effectively solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0005] A double-color injection mold for automobile trim panels based on pipeline pre-bleeding, comprising an injection mold main body, a limiting assembly is fixedly installed at the upper end of the injection mold main body, the limiting assembly is composed of a mounting square rod, a anti-dropping baffle and a conical spring, the anti-dropping baffle is fixedly installed at the upper end of the mounting square rod, the conical spring is sleeved on the mounting square rod, an exhaust assembly is inserted into the injection mold main body, the exhaust assembly is composed of a funnel, an exhaust pipe and a connecting plate, the funnel has two and is symmetrically fixedly installed at both ends of the connecting plate, the exhaust pipe has two and is fixedly installed at the lower end of each funnel, a plugging and cleaning assembly is movably installed on the limiting assembly and the exhaust assembly, the plugging and cleaning assembly is composed of a plugging plate, a connecting rod, a cleaning push rod and a C-shaped plate, the plugging plate has two and is fixedly installed at both ends of the C-shaped plate, the connecting rod has two and is fixedly installed at the lower end of each plugging plate, the cleaning push rod has two and is fixedly installed at the lower end of each connecting rod.

[0006] Preferably, the upper end of the injection mold body has two venting holes, which are connected to the top of the mold cavity.

[0007] Preferably, the mounting rod on the limiting component is fixedly installed on the upper end of the injection mold body.

[0008] Preferably, the exhaust pipe on the exhaust assembly is fixedly inserted into the exhaust port opened on the injection mold body, and the funnel and the connecting plate are both located above the injection mold body.

[0009] Preferably, the C-shaped plate on the sealing and cleaning assembly has a mounting square hole, and the C-shaped plate is slidably mounted on the mounting square rod on the limiting assembly through the mounting square hole, and the C-shaped plate is also located at the lower end of the conical spring.

[0010] Preferably, the cleaning push rod on the sealing and cleaning assembly is movably inserted into the exhaust pipe and the funnel, and the sealing plate is located above the funnel.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By installing a venting component on the injection mold body, air inside the mold cavity can be expelled when molten plastic is injected into the mold body, thereby reducing residual air in the injection mold body and improving the quality of the injection molded product. By installing a sealing and cleaning component, the venting component can be sealed, preventing external debris from entering the mold cavity through the venting component during injection molding, thus ensuring good product quality. By installing a limiting component, the sealing and cleaning component cooperates with the limiting component to remove the plastic remaining in the venting component after injection molding is completed. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 For the present utility model Figure 1 A magnified view of point A;

[0015] Figure 3 This is a schematic diagram of the exhaust assembly of this utility model;

[0016] Figure 4 This is a schematic diagram of the sealing and cleaning component of this utility model;

[0017] Figure 5 This is a schematic diagram of the limiting component of this utility model.

[0018] In the diagram: 1. Injection mold body; 2. Limiting component; 3. Venting component; 4. Sealing and cleaning component; 5. Venting port; 6. Mounting square rod; 7. Anti-detachment baffle; 8. Conical spring; 9. Funnel; 10. Venting pipe; 11. Connecting plate; 12. Sealing plate; 13. Connecting rod; 14. Cleaning push rod; 15. C-shaped plate; 16. Mounting square hole. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figure 1 - Figure 5 As shown, a two-color injection mold for automotive trim panels based on a pre-venting system includes an injection mold body 1. A limiting component 2 is fixedly installed on the upper end of the injection mold body 1. The limiting component 2 consists of a mounting square rod 6, an anti-detachment baffle 7, and a conical spring 8. The anti-detachment baffle 7 is fixedly installed on the upper end of the mounting square rod 6, and the conical spring 8 is sleeved on the mounting square rod 6. An venting component 3 is inserted into the injection mold body 1. The venting component 3 consists of funnels 9, vent pipes 10, and connecting plates 11. There are two funnels 9, which are symmetrically fixedly installed at both ends of the connecting plate 11. There are two vent pipes 10, which are respectively fixedly installed at the lower ends of the two funnels 9. A sealing and cleaning component 4 is movably installed on the limiting component 2 and the venting component 3. The sealing and cleaning component 4 consists of a sealing plate 12, a connecting rod 13, a cleaning push rod 14, and a C-shaped plate 15. There are two sealing plates 12, which are respectively fixedly installed at both ends of the C-shaped plate 15. There are two connecting rods 13, which are respectively fixedly installed at the lower ends of the two sealing plates 12. There are two push rods 14, which are fixedly installed at the lower ends of the two connecting rods 13 respectively. During injection molding, molten plastic can be injected into the mold cavity of the injection mold body 1. Due to the pressure when the molten plastic is injected, the air in the mold cavity will be squeezed. The air in the mold cavity with a certain pressure will push the sealing and cleaning component 4 inserted in the venting component 3 upward, so that the cleaning push rod 14 will be moved out of the venting pipe 10. At the same time, the air in the mold cavity will be discharged through the venting component 3. When the sealing and cleaning component 4 moves upward, the conical spring 8 on the limiting component 2 will be compressed. When there is no air in the mold cavity, the sealing and cleaning component 4 will move downward under the elastic force of the conical spring 8, so that the cleaning push rod 14 will re-enter the venting pipe 10. When the upper mold and lower mold of the injection mold body 1 are separated and the shaped workpiece is taken out, the cleaning push rod 14 will be reset under the elastic force of the conical spring 8, so that the material remaining in the venting pipe 10 can be pushed out.

[0021] Finally, by setting an venting component 3 on the injection mold body 1, when molten plastic is injected into the mold cavity of the injection mold body 1, the air in the mold cavity of the injection mold body 1 can be discharged through the venting component 3, thereby reducing the residual air in the injection mold body 1 and improving the quality of the injection molded product. By setting a sealing and cleaning component 4, the sealing and cleaning component 4 can seal the venting component 3, thereby preventing external debris from entering the mold cavity of the injection mold body 1 through the venting component 3 during injection production, thus ensuring good product quality. By setting a limiting component 2, the sealing and cleaning component 4 cooperates with the limiting component 2 to clean and push out the plastic remaining in the venting component 3 when the injection is completed.

[0022] Specifically, the upper end of the injection mold body 1 has two venting holes 5, which are connected to the top of the mold cavity. The mounting rod 6 on the limiting component 2 is fixedly installed on the upper end of the injection mold body 1. The venting pipe 10 on the venting component 3 is fixedly inserted into the venting holes 5 on the injection mold body 1. The funnel 9 and the connecting plate 11 are both located above the injection mold body 1. The C-shaped plate 15 on the sealing and cleaning component 4 has a mounting hole 16. The C-shaped plate 15 is slidably installed on the mounting rod 6 on the limiting component 2 through the mounting hole 16, and the C-shaped plate 15 is also located at the lower end of the conical spring 8. The cleaning push rod 14 on the sealing and cleaning component 4 is movably inserted into the venting pipe 10 and the funnel 9. The sealing plate 12 is located above the funnel 9. When the sealing and cleaning component 4 is pushed upward by the air in the mold cavity, the C-shaped plate 1... 5 will move upward on the mounting square rod 6 on the limiting component 2, so that the conical spring 8 will be compressed by the C-shaped plate 15. When the air in the mold cavity is completely discharged through the exhaust pipe 10 and the funnel 9, the upward pushing force of the sealing and cleaning component 4 will weaken or disappear. At this time, under the elastic force of the conical spring 8, the sealing and cleaning component 4 will move downward, so that the cleaning push rod 14 will re-enter the exhaust pipe 10. When the upper mold and the lower mold are separated, under the elastic force of the conical spring 8, the sealing and cleaning component 4 will be completely reset. At this time, the cleaning push rod 14 can push out the material remaining in the exhaust pipe 10. When the cleaning push rod 14 is in the exhaust pipe 10 and the sealing plate 12 is at the upper end of the funnel 9, it can block the exhaust component 3, thereby preventing external debris from entering the mold cavity of the injection mold body 1 through the exhaust component 3.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A two-color injection mold for automotive trim panels based on a pre-venting system, comprising an injection mold body (1), characterized in that: A limiting component (2) is fixedly installed on the upper end of the injection mold body (1). The limiting component (2) consists of a mounting rod (6), an anti-detachment baffle (7), and a conical spring (8). The anti-detachment baffle (7) is fixedly installed on the upper end of the mounting rod (6), and the conical spring (8) is sleeved on the mounting rod (6). An exhaust component (3) is inserted into the injection mold body (1). The exhaust component (3) consists of a funnel (9), an exhaust pipe (10), and a connecting plate (11). There are two funnels (9) and they are symmetrically fixedly installed at both ends of the connecting plate (11). The exhaust pipe (9) is fixedly installed on both ends of the connecting plate (11). 10) There are two and fixedly installed at the lower ends of the two funnels (9). The limiting component (2) and the exhaust component (3) are movably installed with a sealing and cleaning component (4). The sealing and cleaning component (4) consists of a sealing plate (12), a connecting rod (13), a cleaning push rod (14) and a C-shaped plate (15). There are two sealing plates (12) and they are fixedly installed at both ends of the C-shaped plate (15). There are two connecting rods (13) and they are fixedly installed at the lower ends of the two sealing plates (12). There are two cleaning push rods (14) and they are fixedly installed at the lower ends of the two connecting rods (13).

2. The two-color injection mold for automotive trim panels based on pipe pre-venting as described in claim 1, characterized in that: The upper end of the injection mold body (1) has two venting holes (5), which are connected to the top of the mold cavity.

3. The two-color injection mold for automotive trim panels based on pipe pre-venting as described in claim 2, characterized in that: The mounting rod (6) on the limiting component (2) is fixedly installed on the upper end of the injection mold body (1).

4. The two-color injection mold for automotive trim panels based on pipe pre-venting as described in claim 3, characterized in that: The exhaust pipe (10) on the exhaust assembly (3) is fixedly inserted into the exhaust hole (5) opened on the injection mold body (1), and the funnel (9) and the connecting plate (11) are both located above the injection mold body (1).

5. A two-color injection mold for automotive trim panels based on pipe pre-venting as described in claim 4, characterized in that: The C-shaped plate (15) on the sealing and cleaning assembly (4) has a mounting square hole (16). The C-shaped plate (15) is slidably mounted on the mounting square rod (6) on the limiting assembly (2) through the mounting square hole (16), and the C-shaped plate (15) is located at the lower end of the conical spring (8).

6. The two-color injection mold for automotive trim panels based on pipe pre-venting as described in claim 5, characterized in that: The cleaning push rod (14) on the sealing and cleaning assembly (4) is movably inserted into the exhaust pipe (10) and the funnel (9), and the sealing plate (12) is located above the funnel (9).

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