Precise injection molding mold for tooth-shaped thick-wall electric vehicle light guide strip

Abstract

The utility model provides a precise injection molding die for a tooth-shaped thick-wall electric vehicle light guide strip, which comprises a lower die holder, two light guide strip molding seats are arranged on two sides in an inner die holder, two slots are formed in a cavity, and molding blocks are mounted in the two slots; the molding blocks are arranged in the slots in the upper mold base, the bottoms of the molding blocks are matched with the light guide strip molding base, and when the upper mold base is pressed on the lower mold base, the two molding blocks in the upper mold base can be oppositely arranged at the top of the light guide strip molding base in the lower mold base, so that a molding cavity is formed, and the surface structure of an injection molding part is subjected to auxiliary molding; and a plurality of mounting bases are arranged at the top of the forming block, the mounting bases can be fixed in mounting grooves in the top of the inserting groove, then the forming block is mounted and fixed, when the forming block needs to be replaced, limiting of the mounting bases can be directly relieved from the top of the upper die base, the forming block can be directly taken out of the inserting groove, and the whole replacing process is simple and efficient.

Description

Technical Field

[0001] This utility model belongs to the field of light guide strip technology, and relates to a precision injection molding mold for toothed thick-walled electric vehicle light guide strips. Background Technology

[0002] Light guides are the light-emitting components in lighting fixtures, consisting of a light source and a light guide. The light guide material uses total internal reflection to conduct light and is commonly found in daytime running lights and other automotive lighting designs. Light guides are installed at the front of electric vehicles, mainly for front lighting. Traditionally, light guides are produced using injection molds. However, in existing light guide mold structures, the molding block structure on the outer side of the light guide is fixed. After long-term demolding and mold closing, the bottom molding surface of the molding block is prone to wear. Improvements are needed, such as designing a detachable molding block structure. Summary of the Invention

[0003] The purpose of this invention is to provide a precision injection molding mold for toothed thick-walled electric vehicle light guide strips, so as to solve the problems mentioned in the background art.

[0004] The objective of this utility model can be achieved through the following technical solution: a precision injection molding mold for a toothed thick-walled electric vehicle light guide strip, comprising a lower mold base, an upper mold base, a top plate, and a sprue. The upper mold base is provided on the top of the lower mold base, and an inner mold base is provided inside the lower mold base. Two light guide strip forming seats are provided on both sides of the inner mold base. A cavity that mates with the inner mold base is opened inside the upper mold base. Two slots are opened inside the cavity, and forming blocks are installed inside the two slots. The bottom end of the forming block is positioned directly above the light guide strip forming seat.

[0005] In the aforementioned precision injection molding mold for toothed thick-walled electric vehicle light guide strips, injection channels are provided in the middle of both the lower mold base and the upper mold base, and the injection channels are connected to one side of the bottom of the light guide strip forming base.

[0006] In the aforementioned precision injection molding mold for toothed thick-walled electric vehicle light guide strips, a top plate is provided on the top of the upper mold base, and a pouring gate is opened at the center of the top of the top plate, with the bottom of the pouring gate communicating with the injection flow channel.

[0007] In the aforementioned precision injection molding mold for toothed thick-walled electric vehicle light guide strips, multiple symmetrical molding seat fixing feet are provided on the side of the light guide strip molding seat, and ejector pins are movably installed inside the molding seat fixing feet.

[0008] In the aforementioned precision injection molding mold for toothed thick-walled electric vehicle light guide strips, three sets of mounting slots are provided on the top side of the slot, and three sets of mounting seats are provided on the top side of the molding block, with the mounting seats fixed inside the mounting slots.

[0009] In the aforementioned precision injection molding mold for toothed thick-walled electric vehicle light guide strips, a fixing screw hole is provided inside the mounting groove, and a screw is threadedly connected to the top of the mounting base, with the bottom end of the screw passing through the mounting base and threadedly connected inside the fixing screw hole.

[0010] Compared with existing technologies, the advantages of this utility model of a precision injection molding mold for toothed thick-walled electric vehicle light guide strips are:

[0011] This application places the molding block in a slot inside the upper mold base. The bottom of the molding block cooperates with the light guide strip molding seat. When the upper mold base is pressed on the lower mold base, the two molding blocks inside can be placed opposite each other on the top of the light guide strip molding seat inside the lower mold base, thereby forming a molding cavity, which in turn assists in molding the surface structure of the injection molded part. In addition, the top of the molding block of this application is provided with multiple mounting seats, which can be fixed inside the mounting groove at the top of the slot, thereby installing and fixing the molding block. When the molding block needs to be replaced, the limiting position of the mounting seat can be released directly from the top of the upper mold base, and the molding block can be directly taken out from the slot without replacing it from inside the upper mold base. The whole replacement process is simple and efficient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the precision injection molding mold for the toothed thick-walled electric vehicle light guide strip of this utility model.

[0013] Figure 2 This is a schematic diagram of the mating structure of the molding block and the light guide strip molding seat of the precision injection molding mold for the toothed thick-walled electric vehicle light guide strip of this utility model.

[0014] Figure 3 This is a schematic diagram of the inner mold base structure of the precision injection molding mold for the toothed thick-walled electric vehicle light guide strip of this utility model.

[0015] Figure 4 This is a schematic diagram of the internal structure of the lower mold base of the precision injection molding mold for the toothed thick-walled electric vehicle light guide strip of this utility model.

[0016] Figure 5 This is a schematic diagram of the upper mold base structure of the precision injection molding mold for the toothed thick-walled electric vehicle light guide strip of this utility model.

[0017] Figure 6 This is a schematic diagram of the molding block structure of the precision injection molding mold for the toothed thick-walled electric vehicle light guide strip of this utility model.

[0018] In the diagram, 1 is the lower mold base; 2 is the upper mold base; 3 is the top plate; 4 is the sprue; 5 is the inner mold base; 6 is the light guide strip forming base; 7 is the forming block; 8 is the injection runner; 9 is the forming base fixing foot; 10 is the ejector pin; 11 is the slot; 12 is the mounting slot; and 13 is the mounting base. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] A precision injection molding mold for toothed thick-walled electric vehicle light guide strips includes a lower mold base 1, an upper mold base 2, a top plate 3, and a sprue 4. The upper mold base 2 is located on the top of the lower mold base 1. An inner mold base 5 is located inside the lower mold base 1. Two light guide strip forming seats 6 are located on both sides inside the inner mold base 5. The upper mold base 2 has a cavity that mates with the inner mold base 5. Two slots 11 are opened inside the cavity. A forming block 7 is installed inside the two slots 11, and the bottom end of the forming block 7 is positioned directly above the light guide strip forming seat 6.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the precision injection molding mold for toothed thick-walled electric vehicle light guide strips of this utility model has injection channels 8 in the middle of both the lower mold base 1 and the upper mold base 2. The injection channels 8 are connected to one side of the bottom of the light guide strip forming base 6.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention relates to a precision injection molding mold for a toothed thick-walled electric vehicle light guide strip. Specifically, the top of the upper mold base 2 is provided with a top plate 3, and a pouring port 4 is provided at the top center of the top of the top plate 3. The bottom of the pouring port 4 is connected to the injection channel 8. The injection liquid is injected through the pouring port 4 and then flows into the molding cavity through the injection channel 8.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, this utility model relates to a precision injection molding mold for a toothed thick-walled electric vehicle light guide strip. Specifically, multiple symmetrical molding base fixing feet 9 are provided on the side of the light guide strip molding base 6. Ejector pins 10 are movably arranged inside the molding base fixing feet 9. The molding base fixing feet 9 and the light guide strip molding base 6 are integrated and mainly participate in the injection molding of the light guide strip fixing feet. Multiple ejector pins 10 are provided and are located at four positions of the light guide strip molding base 6. The four positions are located at the beginning and end and the middle of the light guide strip molding base 6. When the light guide strip injection molded on the top of the light guide strip molding base 6 is demolded, it is mainly lifted by these multiple ejector pins 10.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention relates to a precision injection molding mold for a toothed thick-walled electric vehicle light guide strip. Specifically, three sets of mounting grooves 12 are provided on the top side of the slot 11, and three sets of mounting seats 13 are provided on the top side of the molding block 7. The mounting seats 13 are fixed inside the mounting grooves 12. Two sets of slots 11 are provided, which can symmetrically install two molding blocks 7. The slots 11 penetrate the entire upper mold base 2, and the pouring port 4 is located between the two slots 11.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention relates to a precision injection molding mold for a toothed thick-walled electric vehicle light guide strip. Specifically, the mounting groove 12 has a fixing screw hole inside, the top of the mounting base 13 is threaded with a screw, and the bottom end of the screw passes through the mounting base 13 and is threaded into the fixing screw hole. The present application uses screws to install and lock the molding block 7, and the molding block 7 is a metal structure that participates in the injection molding of the light guide strip.

[0026] This utility model relates to a precision injection molding mold for toothed thick-walled electric vehicle light guide strips. During injection molding, the upper mold base 2 presses onto the lower mold base 1, and the upper mold base 2 and the lower mold base 1 are closed. The two molding blocks 7 inside the upper mold base 2 can be placed on top of the light guide strip molding seat 6 inside the lower mold base 1. Then, the upper mold base 2 and the lower mold base 1 work together to form the entire molding cavity. The molding cavity is used for the injection molding of the light guide strip injection molded part. The molding blocks 7 mainly participate in the molding at their bottom ends, mainly assisting in the molding of the surface structure of the injection molded part. Multiple mounting seats 13 are provided on the top of the molding blocks 7. When installing the molding blocks 7, the mounting seats 13 can be fixed inside the mounting groove 12 at the top of the slot 11 and locked with screws to install and fix the molding blocks 7. When it is necessary to replace the molding blocks 7, the screws are removed, and the limiting position of the mounting seats 13 can be released directly from the top of the upper mold base 2. The molding blocks 7 can be directly taken out from the inside of the slot 11 without having to replace them from inside the upper mold base 2. The entire replacement process of the molding blocks 7 is simple and efficient.

[0027] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A tooth-shaped thick-walled electric vehicle light guide strip precision injection molding mold, comprising a lower mold base (1), an upper mold base (2), a top plate (3) and a gate (4), characterized in that, The lower mold base (1) is provided with an upper mold base (2) at its top. The lower mold base (1) is provided with an inner mold base (5) inside. The inner mold base (5) is provided with two light guide strip forming seats (6) on both sides inside. The upper mold base (2) is provided with a cavity that mates with the inner mold base (5). The cavity is provided with two slots (11). The two slots (11) are provided with forming blocks (7) installed inside. The bottom of the forming blocks (7) is positioned directly above the light guide strip forming seats (6).

2. The tooth-shaped thick-wall light guide strip precision injection molding mold for electric vehicles of claim 1, characterized in that, Both the lower mold base (1) and the upper mold base (2) are provided with injection flow channels (8) in the middle, and the injection flow channels (8) are connected to one side of the bottom of the light guide strip forming base (6).

3. The precision injection molding mold for toothed thick-walled electric vehicle light guide strips according to claim 2, characterized in that, The top of the upper mold base (2) is provided with a top plate (3), and a pouring port (4) is opened in the middle of the top of the top plate (3), and the bottom of the pouring port (4) is connected to the injection channel (8).

4. The tooth-shaped thick-wall light guide strip precision injection molding mold for electric vehicles of claim 1, characterized in that, The light guide strip forming base (6) has multiple symmetrical forming base fixing feet (9) on its side, and the forming base fixing feet (9) are movably provided with ejector pins (10).

5. The tooth-shaped thick-wall light guide strip precision injection molding mold for electric vehicles of claim 1, characterized in that, The top side of the slot (11) is provided with three sets of mounting slots (12), and the top side of the molding block (7) is provided with three sets of mounting seats (13), and the mounting seats (13) are fixed inside the mounting slots (12).

6. The tooth-shaped thick-wall light guide strip precision injection molding mold for electric vehicles of claim 5, characterized in that, The mounting groove (12) has a fixing screw hole inside, and the top of the mounting base (13) is threaded with a screw, and the bottom end of the screw passes through the mounting base (13) and is threaded into the fixing screw hole.

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