An automobile inner door plate injection molding device

Abstract

The utility model discloses an automobile inner door panel injection molding device relates to injection molding equipment technical field, including support, the middle part of support is provided with through -hole, and the through -hole upper end of support is fixed with fixed mould, and the middle part of fixed mould is provided with cavity, and the upper end of support is connected with support, and the support is installed with movable mould, and the middle part of movable mould is fixed with injection molding pipeline, and the outside of injection molding pipeline is covered with heating coil, and the upper end of injection molding pipeline is connected with flow regulating valve, and the cavity is provided with ejection mechanism, and the support includes the vertical rod fixed in the upper end both sides of support, and the upper end of two vertical rods is connected with crossbeam, and the lower end of crossbeam is fixed with two first hydraulic push rod in the symmetrical surface. In the utility model, before the next injection molding, can open heating coil and make injection molding pipeline temperature rise, thereby melt in injection molding pipeline cooling is melted again, guarantees the flowability of melt when next injection molding, and guarantees injection molding quality, and the production demand of large degree is satisfied.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, and in particular to an injection molding device for automotive interior door panels. Background Technology

[0002] With the rapid development of the automotive industry, the production demand for automotive interior door panels, as an important component of automotive interiors, is increasing daily. Traditional injection molding equipment often has some shortcomings in the production of automotive interior door panels. For example, after one injection and cooling, the melt inside the injection channel connected to the mold also cools down, which can cause the melt inside the injection channel to not be able to be discharged smoothly during the next injection. Even if it is discharged smoothly, it will affect the quality of the injection molded product and fail to meet production requirements. Therefore, an injection molding device for automotive interior door panels is provided. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an injection molding device for automotive interior door panels. Before the next injection molding, a heating coil can be turned on to heat up the injection pipe, thereby remelting the cooled melt in the injection pipe. This ensures the fluidity of the melt during the next injection molding and guarantees the injection quality, thus largely meeting production needs and overcoming the shortcomings of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An injection molding device for automotive interior door panels includes a support, a through hole in the middle of the support, a fixed mold fixed at the upper end of the through hole, a cavity in the middle of the fixed mold, a bracket connected to the upper end of the support, a moving mold mounted on the bracket, an injection pipe fixed in the middle of the moving mold, a heating coil sleeved on the outside of the injection pipe, a flow regulating valve connected to the upper end of the injection pipe, and an ejection mechanism provided at the cavity.

[0006] As a further embodiment of this utility model: the bracket includes uprights fixed on both sides of the upper end of the support, the upper ends of the two uprights are connected to a crossbeam, the lower ends of the crossbeam are symmetrically fixed with two first hydraulic push rods, the lower ends of the two first hydraulic push rods are connected to a U-shaped lifting rod, and the moving mold is fixed at the lower end of the U-shaped lifting rod.

[0007] As a further improvement of this utility model: the outer walls of the vertical sections on both sides of the U-shaped lifting rod are fixed with sliders, and the two sliders are respectively slidably sleeved on the two uprights.

[0008] As a further improvement of this utility model: a support hole is provided in the middle of the U-shaped lifting rod, and one end of the flow regulating valve is connected to a melt pumping pipe, which passes through the support hole.

[0009] As a further improvement of this utility model, a cavity is provided on the fixed mold below the cavity.

[0010] As a further embodiment of this utility model: the ejection mechanism includes a support rod fixed at the lower end of the support through hole, and a second hydraulic push rod is fixed at the middle of the upper end face of the support rod. The upper end of the second hydraulic push rod extends into the cavity of the fixed mold and is connected to a push rod, which is engaged at the bottom end of the cavity.

[0011] As a further embodiment of this utility model: a solenoid valve is fixed on one side of the upper end face of the support, one end of the solenoid valve is connected to a water pipe, one end of the water pipe extends into the cavity of the fixed mold and is connected to an annular pipe, and shower heads are fixed at equal intervals on the annular pipe, the annular pipe is located below the cavity, and the other end of the solenoid valve is connected to a water supply pipe.

[0012] As a further improvement of this utility model, support legs are fixed at the four corners of the lower end face of the support.

[0013] The beneficial effects of this utility model are as follows:

[0014] Before the next injection molding, the heating coil can be turned on to heat up the injection pipe, thereby remelting the cooled melt in the injection pipe, ensuring the fluidity of the melt during the next injection molding, and ensuring the injection quality, thus meeting production needs to a greater extent. Attached Figure Description

[0015] Figure 1 This is a first-view three-dimensional structural diagram of an injection molding device for automotive interior door panels proposed in this utility model.

[0016] Figure 2 This is a second-view three-dimensional structural diagram of an injection molding device for automotive interior door panels proposed in this utility model.

[0017] Figure 3 This is a third-view perspective three-dimensional structural diagram of an automotive interior door panel injection molding device proposed in this utility model.

[0018] Figure 4 This utility model proposes an injection molding device for automotive interior door panels. Figure 2 Enlarged structural diagram at point A in the middle.

[0019] Figure 5 This utility model proposes an injection molding device for automotive interior door panels. Figure 3 Enlarged structural diagram at point B.

[0020] In the diagram: 1. Support; 2. Solenoid valve; 3. Water pipe; 4. Cavity; 5. Moving mold; 6. Slider; 7. First hydraulic push rod; 8. Crossbeam; 9. Ejector rod; 10. Vertical rod; 11. Fixed mold; 12. U-shaped lifting rod; 13. Support rod; 14. Heating coil; 15. Melt pumping pipe; 16. Second hydraulic push rod; 17. Ring pipe; 18. Shower head; 19. Injection pipe; 20. Flow regulating valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1, referring to Figure 1-5 An injection molding device for automotive interior door panels includes a support 1, with legs fixed at the four corners of the lower end face of the support 1. A through hole is provided in the middle of the support 1, and a fixed mold 11 is fixed at the upper end of the through hole of the support 1. A cavity 4 is provided in the middle of the fixed mold 11. A bracket is connected to the upper end of the support 1, and a moving mold 5 is installed on the bracket. An injection pipe 19 is fixed in the middle of the moving mold 5. A heating coil 14 is sleeved on the outside of the injection pipe 19. A flow regulating valve 20 is connected to the upper end of the injection pipe 19. An ejection mechanism is provided at the cavity 4.

[0023] The support includes uprights 10 fixed on both sides of the upper end of the support 1. The upper ends of the two uprights 10 are connected to a crossbeam 8. The lower ends of the crossbeam 8 are symmetrically fixed with two first hydraulic push rods 7. The lower ends of the two first hydraulic push rods 7 are connected to a U-shaped lifting rod 12. The moving mold 5 is fixed to the lower end of the U-shaped lifting rod 12.

[0024] Both sides of the vertical section of the U-shaped lifting rod 12 are fixed with sliders 6, and the two sliders 6 are respectively slidably sleeved on the two uprights 10.

[0025] A support hole is provided in the middle of the U-shaped lifting rod 12, and one end of the flow regulating valve 20 is connected to the melt pumping pipe 15, which passes through the support hole.

[0026] The fixed mold 11 has a cavity located below the cavity 4. The ejection mechanism includes a support rod 13 fixed to the lower end of the through hole of the support 1. A second hydraulic push rod 16 is fixed to the middle of the upper end face of the support rod 13. The upper end of the second hydraulic push rod 16 extends into the cavity of the fixed mold 11 and is connected to an ejector rod 9. The ejector rod 9 is engaged at the bottom end of the cavity 4.

[0027] Two first hydraulic push rods 7 are used to push the U-shaped lifting rod 12 and the moving mold 5 down, so that the moving mold 5 and the fixed mold 11 are merged. The plastic melt is transported from the injection pipe 19 through the melt pumping pipe 15 and enters the cavity 4 for molding. The flow regulating valve 20 can accurately control the melt flow according to the preset parameters to ensure that the cavity 4 is filled evenly. After the inner door panel is cooled, the moving mold 5 and the fixed mold 11 are separated. The second hydraulic push rod 16 is used to push the ejector rod 9 up, and then eject the inner door panel for easy unloading. Before the next injection, the heating coil 14 is turned on to heat up the injection pipe 19, thereby melting the cooled melt in the injection pipe 19 again to ensure the fluidity of the melt during the next injection and to ensure the injection quality.

[0028] Example 2 is an optimization based on Example 1, specifically:

[0029] A solenoid valve 2 is fixed on one side of the upper end face of the support 1. One end of the solenoid valve 2 is connected to a water pipe 3. One end of the water pipe 3 extends into the cavity of the fixed mold 11 and is connected to an annular pipe 17. Shower nozzles 18 are fixed at equal intervals on the annular pipe 17. The annular pipe 17 is located below the cavity 4. The other end of the solenoid valve 2 is connected to a water supply pipe.

[0030] After one side of the injection molding is completed, the solenoid valve 2 is turned on so that the cooling water is sprayed evenly from the shower head 18 on the annular pipe 17 to the bottom of the cavity 4, which helps to speed up the cooling and shaping of the inner door panel and increase the production speed.

[0031] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An injection molding device for an automotive interior door panel, comprising a support (1), characterized in that, The support (1) has a through hole in the middle, and a fixed mold (11) is fixed at the upper end of the through hole of the support (1). A cavity (4) is provided in the middle of the fixed mold (11). A bracket is connected to the upper end of the support (1). A moving mold (5) is installed on the bracket. An injection pipe (19) is fixed in the middle of the moving mold (5). A heating coil (14) is sleeved on the outside of the injection pipe (19). A flow regulating valve (20) is connected to the upper end of the injection pipe (19). An ejection mechanism is provided at the cavity (4).

2. The automobile inner door plate injection molding device according to claim 1, characterized in that, The bracket includes uprights (10) fixed on both sides of the upper end of the support (1). The upper ends of the two uprights (10) are connected to a crossbeam (8). The lower ends of the crossbeam (8) are symmetrically fixed with two first hydraulic push rods (7). The lower ends of the two first hydraulic push rods (7) are connected to a U-shaped lifting rod (12). The moving mold (5) is fixed at the lower end of the U-shaped lifting rod (12).

3. The automobile inner door panel injection molding device according to claim 2, characterized in that, The outer walls of the vertical sections on both sides of the U-shaped lifting rod (12) are fixed with sliders (6), and the two sliders (6) are respectively slidably sleeved on the two uprights (10).

4. The automobile inner door panel injection molding device according to claim 2, characterized in that, The U-shaped lifting rod (12) has a support hole in the middle, and one end of the flow regulating valve (20) is connected to a melt pumping pipe (15), which passes through the support hole.

5. The automotive interior door panel injection molding device according to claim 1, characterized in that, The fixed mold (11) has a cavity located below the cavity (4).

6. The automotive interior door panel injection molding device according to claim 5, characterized in that, The ejection mechanism includes a support rod (13) fixed at the lower end of the through hole of the support (1). A second hydraulic push rod (16) is fixed at the middle of the upper end face of the support rod (13). The upper end of the second hydraulic push rod (16) extends into the cavity of the fixed mold (11) and is connected to an ejector rod (9). The ejector rod (9) is engaged at the bottom end of the cavity (4).

7. The automotive interior door panel injection molding device according to claim 5, characterized in that, A solenoid valve (2) is fixed on one side of the upper end face of the support (1). One end of the solenoid valve (2) is connected to a water pipe (3). One end of the water pipe (3) extends into the cavity of the fixed mold (11) and is connected to an annular pipe (17). Shower nozzles (18) are fixed at equal intervals on the annular pipe (17). The annular pipe (17) is located below the cavity (4). The other end of the solenoid valve (2) is connected to a water supply pipe.

8. The automotive interior door panel injection molding device according to claim 7, characterized in that, The support (1) has legs fixed at the four corners of its lower end face.

Images