Automobile light-transmitting decorative injection molding component and injection mold thereof

Abstract

The utility model discloses an automobile light-transmitting decorative injection molding component and an injection mold thereof, and relates to the field of automobile manufacturing, and the component comprises a light-proof body and a plurality of light-transmitting bodies, the light-transmitting bodies are mutually independent and are not connected; the light-transmitting body comprises a protruding part and a combination part, and the protruding part occupies the light-transmitting area and is flush with the outer surface of the light-proof body. The combination part is attached to the inner surface of the light-proof body; the light-proof body and the light-transmitting body are integrally formed in an injection molding mode through an injection mold. The injection mold comprises an upper mold body and a lower mold body, a groove is formed in the top face of a lower mold core, the range and depth of the groove correspond to the range and depth of the combination portion of each light-transmitting body, and each light-transmitting area is provided with an independent glue inlet. The upper die is provided with a protrusion corresponding to the protruding part in range and depth. According to the utility model, the problems that the production cost is increased, the light of each light-transmitting area interferes with each other and the single-point light control cannot be realized due to the need of removing a light-proof shielding material after the component is formed can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts manufacturing, in particular to an integrally injection-molded automobile injection-molded light-transmitting component and a mold used for injection-molding the automobile light-transmitting component. Background Art

[0002] like Figure 1 and Figure 2 As shown, an existing automobile translucent decorative injection-molded component has three translucent areas (a first translucent area 3, a second translucent area 4 and a third translucent area 5) on the component body. The body of the entire component is integrally injection-molded from a translucent body glue inlet 8 using a transparent material with relatively high cost, and the whole is translucent, i.e., a translucent body 7; while the non-translucent area is shielded by a black opaque material on both the inner and outer surfaces of the body, i.e., a shielding surface layer 6; and only the light transmission of the translucent area is retained. The injection mold belongs to one-piece injection molding, and the injection mold structure is simple. However, after the one-piece injection molding, the translucent area needs to be processed with a shielding layer separately, and the opaque shielding material is removed to expose the translucent body, thereby increasing the post-processing production process of removing the shielding layer. At the same time, the biggest problem with this structure is that since each translucent area is connected as a whole with translucent materials, the light of the three translucent areas interferes with each other, and single-point lighting control cannot be achieved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automobile light-transmitting decorative injection-molded component and its injection mold, which can solve the problem that after the existing automobile injection-molded light-transmitting components are integrally injection-molded, it is necessary to remove the opaque shielding material, increase the post-processing production process, resulting in increased production costs and low production efficiency, and at the same time solve the problem that the light of each light-transmitting area interferes with each other and single-point lighting control cannot be achieved.

[0004] In order to solve the above problems, the technical solution of the utility model is: this automobile injection molded light-transmitting component includes an opaque main body and several light-transmitting bodies arranged on the opaque main body, and each of the light-transmitting bodies is independent of each other and not connected to each other; the light-transmitting body includes a protrusion and a joint, each of the protrusions occupies a light-transmitting area and is flush with the outer surface of the opaque main body; the joint is in contact with the inner surface of the opaque main body; the light-transmitting main body and the several light-transmitting bodies are integrally injection molded using an automobile light-transmitting decorative injection molding component injection mold.

[0005] In the above technical solution, a more specific solution is: there are three light-transmitting bodies, which are respectively arranged in the first light-transmitting area, the second light-transmitting area and the third light-transmitting area.

[0006] Furthermore: the opaque body is injection-molded using a relatively low-cost black opaque material to shield light and save costs, and the translucent body is injection-molded using a transparent material and is entirely translucent.

[0007] Further: the material of the opaque body is black PP; the material of the translucent body is transparent PC. An injection mold for a translucent decorative injection molded component for an automobile, comprising an upper mold and a lower mold, wherein the upper mold and the lower mold, when molded together, form an injection cavity that is inclined and matches the shape of the translucent decorative injection molded component for the automobile; the top surface of the lower mold core of the lower mold is provided with a corresponding lower mold groove corresponding to the translucent body in each translucent area, the range and depth of the lower mold groove correspond to the range and depth of each translucent body joint, and each lower mold groove bottom is provided with a corresponding independent glue inlet for the corresponding translucent area; the upper mold is provided with a protrusion corresponding to the range and depth of the protruding part of each translucent body; the upper end of the injection cavity is provided with a glue inlet for the opaque body through which the black opaque material is introduced.

[0008] Further: the bottom of the lower mold is provided with a power device connected thereto for driving the mold to move.

[0009] Further: the power device is a cylinder.

[0010] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0011] The main body of the injection molded part of the utility model is injection molded with a low-cost black opaque material to play a shading role; and each light-transmitting area that needs to be light-transmitting is injection molded into a light-transmitting body with a transparent material, and the light-transmitting body is light-transmitting as a whole; the injection mold still belongs to one-piece injection molding, but the light-transmitting body of each light-transmitting area is provided with a separate injection molding glue inlet, and the transparent plastic materials between the light-transmitting areas are not connected to each other, that is, each light-transmitting area is glued separately, and the light-transmitting bodies of the first light-transmitting area, the second light-transmitting area and the third light-transmitting area are not connected because they exist separately, and the light between them does not interfere with each other, so single-point lighting control can be achieved. The main body of the utility model uses a low-cost black opaque material, which not only reduces the removal process of the shielding material in the non-light-transmitting area in the later stage, improves production efficiency, reduces material and production costs, and solves the problem of light interference between the light-transmitting areas and the occurrence of light channeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of a prior art automobile light-transmitting decorative injection molding component;

[0013] Figure 2 It is a schematic diagram of injection molding of a prior art automobile light-transmitting decorative injection molding component;

[0014] Figure 3This is a schematic diagram of the structure of the automobile light-transmitting decorative injection molding component of the utility model;

[0015] Figure 4 The utility model is a schematic diagram of the structure of an injection mold for an automobile light-transmitting decorative injection component.

[0016] The numbers in the figure are as follows: 1. lower mold groove, 2. protrusion, 3. first light-transmitting area, 4. second light-transmitting area, 5. third light-transmitting area, 6. shielding surface layer, 7. light-transmitting body, 8. glue inlet of light-transmitting body, 9. light-opaque body, 10. glue inlet of light-opaque body, 11. first glue inlet of light-transmitting body, 12. second glue inlet of light-transmitting body, 13. third glue inlet of light-transmitting body, 14. lower mold core. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 3 The light-transmitting decorative injection-molded component of an automobile comprises a light-proof body 9 and several light-transmitting bodies arranged on the light-proof body 9; there are three light-transmitting bodies in this embodiment, and each of the light-transmitting bodies is independent of each other and not connected to each other; the light-transmitting body comprises a protrusion and a joint, and each of the protrusions occupies a light-transmitting area and is flush with the outer surface of the light-proof body 9; this embodiment corresponds to three light-transmitting bodies, and the light-transmitting areas are distributed in three places, namely the first light-transmitting area 3, the second light-transmitting area 4 and the third light-transmitting area 5; the joint is in contact with the inner surface of the light-proof body. The light-proof body 9 is injection-molded with a relatively low-cost black light-proof material, which plays a role in shading and saving costs. In this embodiment, the material of the light-proof body 9 is black PP; the light-transmitting body is injection-molded with a transparent material, which is light-transmitting as a whole and has a relatively high cost. In this embodiment, the material of the light-transmitting body is transparent PC. The entire automobile light-transmitting decorative injection-molded component including the light-impermeable main body and a plurality of light-transmitting bodies is integrally injection-molded by using an automobile light-transmitting decorative injection-molded component injection mold.

[0019] like Figure 4 As shown, the injection mold for the automobile light-transmitting decorative injection-molded component includes an upper mold and a lower mold. When the upper mold and the lower mold are molded together, an injection cavity is formed that is inclined and matches the shape of the automobile light-transmitting decorative injection-molded component; the top surface of the lower mold core of the lower mold is provided with a corresponding lower mold groove 1 corresponding to the light-transmitting body of each light-transmitting area, and the range and depth of the lower mold groove 1 correspond to the range and depth of the joint of each light-transmitting body, and the bottom of each lower mold groove 1 is provided with a corresponding independent glue inlet corresponding to the light-transmitting area, such as Figure 4As shown, the first light-transmitting body glue inlet 11 corresponds to the first light-transmitting area 3, the second light-transmitting body glue inlet 12 corresponds to the second light-transmitting area 4, and the third light-transmitting body glue inlet 13 corresponds to the third light-transmitting area 5; the upper mold is provided with a protrusion 2 corresponding to the protrusion position of each light-transmitting body; the upper end of the injection cavity is provided with a light-opaque body glue inlet 10 for passing a black light-opaque material; the power device for driving the mold movement in this embodiment is arranged at the bottom of the mold (not shown in the figure), connected to the lower mold, and is used to drive the lower mold to realize its up and down movement. The power device is a cylinder, and other driving mechanisms can also be used.

[0020] When the power device drives the lower mold to move upward to the upper limit and fit with the upper mold, the protrusion 2 of the upper mold occupies the luminous area of ​​the automobile luminous injection molded part, and the lower mold groove 1 forms a cavity. At this time, glue is injected into the cavity through the glue inlet 10 of the opaque body, and at this time, the glue inlet of each translucent body is in a glue sealing state; and each translucent area has its own boundary, and the black opaque material enters the next non-luminous area through the two sides of the protrusion 2 for injection molding, completing the injection molding of the opaque body;

[0021] After the opaque body is injection-molded, the lower mold is moved downward to the lower limit by a power device, and the vacant space is used to allow the translucent material to enter through each of the translucent glue inlets for injection molding of each luminous area, that is, the first light-transmitting area 3 is injection-molded from the first light-transmitting body glue inlet 11, the second light-transmitting area 4 is injection-molded from the second light-transmitting body glue inlet 12, and the third light-transmitting area 6 is injection-molded from the third light-transmitting body glue inlet 13, thereby completing the injection molding of each light-transmitting body.

[0022] like Figure 4 The light-proof body glue inlet 9 shown is arranged at the upper end of the injection cavity, the third light-transmitting body glue inlet 13 is arranged at the lower end of the injection cavity, and the first light-transmitting body glue inlet 11 and the second light-transmitting body glue inlet 12 are arranged in the lower mold core 14 between the light-proof body glue inlet and the third light-transmitting body glue inlet.

[0023] In the injection mold of the utility model, each light-transmitting area is provided with a separate glue inlet, that is, each light-transmitting area is separately glued, and the light of the first light-transmitting area, the second light-transmitting area and the third light-transmitting area does not interfere with each other, and single-point lighting control can be achieved. Compared with the prior art, it not only reduces the subsequent process of removing the shielding material of the non-light-transmitting area, but also solves the problem of light interference between light-transmitting areas and the generation of light channeling.

Claims

1. A light-transmitting decorative injection-molded component for an automobile, comprising a light-impermeable body and a plurality of light-transmitting bodies arranged on the light-impermeable body, characterized in that: Each of the light-transmitting bodies is independent of each other and not connected to each other; the light-transmitting body includes a protruding portion and a connecting portion, each of the protruding portion occupies a light-transmitting area and is flush with the outer surface of the opaque body; the connecting portion is in contact with the inner surface of the opaque body; the opaque body and several of the light-transmitting bodies are integrally injection molded using an injection mold for an automobile light-transmitting decorative injection molding component.

2. The automobile light-transmitting decorative injection-molded component according to claim 1, characterized in that: There are three light-transmitting bodies, which are respectively arranged in the first light-transmitting area, the second light-transmitting area and the third light-transmitting area.

3. The automotive light-transmitting decorative injection-molded component according to claim 1 or 2, characterized in that: The opaque body is injection-molded with a black opaque material; the translucent body is injection-molded with a transparent material and is entirely translucent.

4. The automobile light-transmitting decorative injection-molded component according to claim 3, characterized in that: The material of the opaque body is black PP; the material of the translucent body is transparent PC.

5. An injection mold for a light-transmitting decorative injection component for an automobile according to any one of claims 1 or 2, characterized in that: The invention comprises an upper mold and a lower mold. When the upper mold and the lower mold are molded together, they form an injection molding cavity which is inclined and matches the shape of the automobile light-transmitting decorative injection molding component; the top surface of the lower mold core of the lower mold is provided with a corresponding lower mold groove corresponding to the light-transmitting body in each light-transmitting area, the range and depth of the lower mold groove correspond to the range and depth of the joint of each light-transmitting body, and the bottom of each lower mold groove is provided with a corresponding independent glue inlet for the corresponding light-transmitting area; the upper mold is provided with a protrusion corresponding to the range and depth of the protruding part of each light-transmitting body; and the upper end of the injection molding cavity is provided with a glue inlet for the opaque body.

6. The injection mold for a light-transmitting decorative injection component of an automobile according to claim 5, characterized in that: The bottom of the lower mold is provided with a power device connected thereto.

7. The injection mold for a light-transmitting decorative injection component of an automobile according to claim 6, characterized in that: The power device is an oil cylinder.

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