Thin lens car lamp mold

Abstract

The utility model belongs to the technical field of car lamp molds, and discloses a thin-lens car lamp mold which comprises an upper mold, a main injection molding opening is formed in the center of the upper surface of the upper mold, and auxiliary injection molding openings are formed in the two ends of the front side of the upper surface of the upper mold; the thin lens car lamp die comprises an upper die and a lower die which is arranged at the lower end of the upper die, the lower die further comprises a lower die plate and a lower die base, the lower die base is connected to the lower end of the lower die plate in a sliding mode, a die core is fixedly installed on the upper surface of the lower die base, and guide plates are fixedly installed on the left side and the right side of the interior of an installation cavity. Raw materials are injected through the main injection molding opening and enter the mold core through the main injection molding opening, primary forming is completed after the raw materials in the mold core are cooled, after primary forming is completed, the raw materials enter the secondary forming cavity through the auxiliary injection molding opening to conduct secondary forming on a workpiece, secondary forming can be completed only through one mold, and therefore the production cost is greatly reduced; in addition, transfer is not needed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle lamp moulds, in particular to a thin lens vehicle lamp mould. Background Art

[0002] From the analysis of market trends, it can be seen that flattening is one of the main trends in automobile styling design. Previously, only daytime running lights or position lights adopted this design, but now even high and low beams have adopted this design trend. The high and low beam lens modules are no longer the traditional semi-spherical type, and the appearance is becoming thinner and slimmer, and the number of modules in each headlight is also increasing. In order to cope with this trend, it is bound to pose many challenges to the design and production of today's high and low beam modules, because the size of the module and the optical efficiency are closely related. The smaller the height of the lens module, the lower the optical efficiency.

[0003] In the prior art, multiple injection molding is generally used for thin lenses, but this process requires the setting of multiple modules. After the first molding, the workpiece is transferred to another module for secondary molding. Not only does it require multiple modules, but it also takes time for transportation, which seriously affects the production efficiency of the lens. In order to solve the above problems, a thin lens car lamp mold is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a thin lens lamp mold in order to solve the above problems.

[0005] The technical solution adopted by the utility model is as follows: a thin lens lamp mold, comprising:

[0006] An upper mold, the center of the upper surface of which is provided with a main injection port, and both ends of the upper surface of the upper mold are provided with auxiliary injection ports;

[0007] A lower mold is arranged at the lower end of the upper mold, and the lower mold also includes a lower mold plate and a lower mold base. The lower mold base is slidably connected to the lower end of the lower mold plate, a mold core is fixedly installed on the upper surface of the lower mold base, and installation cavities are opened at both ends of the front side of the upper surface of the lower mold base, a cylinder is fixedly installed at the lower end of the installation cavity, a fixed plate is fixedly installed on the upper surface of the cylinder, movable plates are hinged on the left and right sides of the fixed plate, and guide plates are fixedly installed on the left and right sides of the inside of the installation cavity.

[0008] Through the above technical scheme, after the mold is assembled, the raw material is injected through the main injection port, and the raw material enters the inside of the mold core through the main injection port. After the raw material in the mold core is cooled, the primary molding is completed. After the primary molding is completed, the cylinder is extended and pulled downward to pull the fixed plate. During the downward movement of the fixed plate, the movable plates on both sides are forced to tilt downward, thereby forming a secondary molding cavity in the installation cavity, and the injection raw material is injected into the auxiliary injection port. After the raw material enters the secondary molding cavity through the auxiliary injection port, the workpiece is secondary molded. Only one mold is needed to complete the secondary molding, which not only greatly reduces the production cost, but also does not require transportation, thereby improving production efficiency.

[0009] In a preferred embodiment, a demolding rod is fixedly mounted on one side of the upper surface of the lower mold base, and a through groove matched with the demolding rod is opened on one side of the mold core.

[0010] Through the above technical solution, when the injection molding of the workpiece is completed, the lower mold base moves downward. During this process, the demolding rod moves out from the inside of the mold core. At this time, a gap is generated between the workpiece and the mold core to facilitate the demolding of the workpiece.

[0011] In a preferred embodiment, the outer walls of the upper mold and the lower mold are both provided with a plurality of cooling holes.

[0012] Through the above technical solution, cooling water is injected through the cooling hole to cool the workpiece after the injection molding is completed.

[0013] In a preferred embodiment, the auxiliary injection port is located directly above the installation cavity.

[0014] In a preferred embodiment, the guide plate is a sloped structure.

[0015] In a preferred embodiment, the lower die base is provided with slots on both the front and rear sides.

[0016] Through the above technical solution, the lower die base is connected to the crane equipment through the slot.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows: the utility model provides a thin lens vehicle lamp mold.

[0018] When the mold is assembled, the raw material is injected through the main injection port, and the raw material enters the mold core through the main injection port. The primary molding is completed after the raw material in the mold core is cooled. After the primary molding is completed, the cylinder is extended and pulled downward to pull the fixed plate. During the downward movement of the fixed plate, the movable plates on both sides are forced to tilt downward, thereby forming a secondary molding cavity in the installation cavity, and the injection raw material is injected into the auxiliary injection port. After the raw material enters the secondary molding cavity through the auxiliary injection port, the workpiece is secondary molded. Only one mold is needed to complete the secondary molding, which not only greatly reduces the production cost, but also does not require transportation, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the middle and lower molds of the utility model;

[0021] Figure 3 For this utility model Figure 2 A magnified view of middle;

[0022] Figure 4 It is a structural schematic diagram of the lower die base in the utility model.

[0023] Markings in the figure: 1-upper mold; 11-main injection port; 12-auxiliary injection port; 2-lower mold; 21-lower mold plate; 22-lower mold base; 23-mold core; 24-installation cavity; 25-cylinder; 26-fixed plate; 27-movable plate; 28-guide plate; 29-demolding rod. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The following will be combined Figure 1-4 The thin lens lamp mold of the utility model embodiment is described in detail.

[0026] Example:

[0027] Thin lens lamp mold, including:

[0028] The upper mold 1 has a main injection port 11 at the center of its upper surface, and auxiliary injection ports 12 are provided at both ends of the upper surface of the upper mold 1. The lower mold 2 is arranged at the lower end of the upper mold 1. The outer walls of the upper mold 1 and the lower mold 2 are provided with a plurality of cooling holes. After the injection molding is completed, cooling water is injected through the cooling holes to cool the workpiece.

[0029] The lower mold 2 also includes a lower mold plate 21 and a lower mold base 22. The lower mold base 22 is provided with slots on both the front and rear sides. The lower mold base 22 is connected to the driving equipment through the slots. The lower mold base 22 is slidably connected to the lower end of the lower mold plate 21. A mold core 23 is fixedly installed on the upper surface of the lower mold base 22. When the mold is assembled, the raw material is injected through the main injection port 11, and the raw material enters the mold core 23 through the main injection port 11. After the raw material in the mold core 23 is cooled, the primary molding is completed;

[0030] Both ends of the front side of the upper surface of the lower mold base 22 are provided with mounting cavities 24, the auxiliary injection molding port 12 is located directly above the mounting cavity 24, a cylinder 25 is fixedly installed at the lower end of the mounting cavity 24, a fixed plate 26 is fixedly installed on the upper surface of the cylinder 25, and a movable plate 27 is hinged on both sides of the fixed plate 26, and guide plates 28 are fixedly installed on both sides of the left and right sides of the inside of the mounting cavity 24, and the guide plates 28 are inclined structures. After the primary molding is completed, the cylinder 25 is extended and retracted to pull the fixed plate 26 downward, and the movable plates 27 on both sides thereof are tilted downward by force during the downward movement of the fixed plate 26, so that a secondary molding cavity is formed in the mounting cavity 24, and the injection molding raw material is injected into the auxiliary injection molding port 12. After the raw material enters the secondary molding cavity through the auxiliary injection molding port 12, the workpiece is subjected to secondary molding. Only one mold is needed to complete the secondary molding, which not only greatly reduces the production cost, but also does not require transportation, thereby improving the production efficiency;

[0031] A demolding rod 29 is fixedly installed on one side of the upper surface of the lower mold base 22, and a through groove compatible with the demolding rod 29 is opened on one side of the mold core 23. When the injection molding of the workpiece is completed, the lower mold base 22 moves downward. During this process, the demolding rod 29 moves out from the inside of the mold core 23. At this time, a gap is generated between the workpiece and the mold core 23 to facilitate the demolding of the workpiece.

[0032] Working principle:

[0033] After the molds are assembled, raw materials are injected through the main injection port 11, and the raw materials enter the mold core 23 through the main injection port 11. After the raw materials in the mold core 23 are cooled, the primary molding is completed. After the primary molding is completed, the cylinder 25 is extended and retracted to pull the fixed plate 26 downward. During the downward movement of the fixed plate 26, the movable plates 27 on both sides are tilted downward by force, thereby forming a secondary molding cavity in the installation cavity 24, and the injection raw materials are injected into the auxiliary injection port 12. After the raw materials enter the secondary molding cavity through the auxiliary injection port 12, the workpiece is secondary molded. Only one mold is needed to complete the secondary molding, which not only greatly reduces the production cost, but also does not require transportation, thereby improving production efficiency.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Thin lens lamp mold, characterized by: include: An upper mold (1) has a main injection port (11) at the center of its upper surface, and auxiliary injection ports (12) are provided at both ends of the front side of the upper surface of the upper mold (1); A lower mold (2) is arranged at the lower end of the upper mold (1), and the lower mold (2) further comprises a lower mold plate (21) and a lower mold base (22). The lower mold base (22) is slidably connected to the lower end of the lower mold plate (21), a mold core (23) is fixedly mounted on the upper surface of the lower mold base (22), both ends of the front side of the upper surface of the lower mold base (22) are provided with mounting cavities (24), a cylinder (25) is fixedly mounted on the lower end of the mounting cavity (24), a fixed plate (26) is fixedly mounted on the upper surface of the cylinder (25), a movable plate (27) is hingedly mounted on the left and right sides of the fixed plate (26), and guide plates (28) are fixedly mounted on the left and right sides of the inside of the mounting cavity (24).

2. The thin lens lamp mold according to claim 1, characterized in that: A demoulding rod (29) is fixedly mounted on one side of the upper surface of the lower mold base (22), and a through groove adapted to the demoulding rod (29) is provided on one side of the mold core (23).

3. The thin lens lamp mold according to claim 1, characterized in that: The outer walls of the upper die (1) and the lower die (2) are both provided with a plurality of cooling holes.

4. The thin lens lamp mold according to claim 1, characterized in that: The auxiliary injection port (12) is located directly above the installation cavity (24).

5. The thin lens lamp mold according to claim 1, characterized in that: The guide plate (28) is a sloped structure.

6. The thin lens lamp mold according to claim 1, characterized in that: The lower die seat (22) is provided with slots on both the front and rear sides.

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