Injection mold for electric vehicle headlight mask with undercut demoulding mechanism

Abstract

The utility model belongs to the field of mold technology, and particularly relates to an injection mold for an electric vehicle headlight mask with an inverted demoulding mechanism. The utility model comprises a headlight mask molding lower mold and a headlight mask molding upper mold. During the injection molding process, the headlight mask molding lower mold and the headlight mask molding upper mold are brought close to each other, so that the molding lower insert seat and the molding upper insert seat are abutted, and the buckle and slot structure of the plastic part can be synchronously molded through the cooperation between the buckle molding lower part and the buckle molding upper part, and the buckle plate molding structure can synchronously mold various buckle plate structures of the plastic part, without the need for secondary processing, shortening the process, and opening the mold after injection molding, and ejecting the molded plastic part through the ejection demoulding part. During ejection, the ejection demoulding part adopts an inverted structure for demoulding, avoiding damage to the buckle, slot and buckle plate structure of the plastic part, thereby ensuring the overall quality of the plastic part.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an injection mold for an electric vehicle headlight mask with an undercut demoulding mechanism. Background Art

[0002] As the main lighting equipment of electric vehicles, headlights play a vital role in the driving process of the vehicle, especially at night. Existing electric vehicle headlights usually include lampshades, lamp holders and reflective bowls. These parts are processed by injection molds. Since the electric vehicle headlight mask requires a large number of buckles, slots and gusset plates to fix the mask during installation, most electric vehicle headlight mask molds are difficult to simultaneously mold the buckles, slots and various gusset plate protrusions of the electric vehicle headlight mask plastic parts during the injection molding process. Secondary processing is required, with many processes, and during the ejection process, the connection structure of the plastic part is easily damaged, affecting the overall quality of the plastic part. Therefore, it is urgently needed to design an electric vehicle headlight mask injection mold with an inverted demolding mechanism that can overcome the above defects.

[0003] In order to overcome the shortcomings of the prior art, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses a two-plate mold for a headlight mask [application number: 201320731053.1], including: a fixed mold and a movable mold, the fixed mold includes a panel and a fixed mold plate fixed to each other, a fixed mold insert is provided in the fixed mold plate, a locking block is also fixed on the fixed mold plate, and an inclined guide column is obliquely fixed in the locking block; the movable mold includes a bottom plate, a bottom needle plate, and a surface needle plate matched with each other, a pad is provided on the surface needle plate, an inner pull-out block is slidably provided on the pad, one end of the inner pull-out block is provided with a wedge-shaped dovetail convex strip, and the wedge-shaped dovetail convex strip is matched with an inner dovetail groove; the other end of the inner pull-out block is provided with an inclined through hole, and the inclined guide column is inserted into the inclined through hole. Utility Model Content

[0004] The utility model aims to solve the above problems and provides an injection mold for an electric vehicle headlight mask with an undercut demoulding mechanism.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An electric vehicle headlight mask injection mold with an inverted demolding mechanism comprises a headlight mask molding lower mold and a headlight mask molding upper mold, an injection molding mainboard is arranged above the headlight mask molding upper mold, a molding lower insert seat and a molding upper insert seat are arranged between the headlight mask molding lower mold and the headlight mask molding upper mold, a main body molding protrusion is arranged in the molding lower insert seat, a main body molding cavity is arranged in the molding upper insert seat, the main body molding protrusion corresponds to the position of the main body molding cavity and the shape is matched, a buckle molding lower part is arranged on the side of the main body molding protrusion, a buckle molding upper part and a buckle plate molding structure are arranged on the side of the main body molding cavity, the buckle molding lower part is arranged opposite to the buckle molding upper part, and an ejection demolding piece staggered with the main body molding protrusion is arranged in the molding lower insert seat.

[0007] In the above-mentioned electric vehicle headlight mask injection mold with an inverted demoulding mechanism, the buckle-molded lower part includes a plurality of buckle-molded lower grooves arranged on the side of the main body molding protrusion.

[0008] In the above-mentioned electric vehicle headlight mask injection mold with an inverted demolding mechanism, the snap-on molding upper part includes a snap-on molding protrusion arranged on the side of the main body molding cavity, and the snap-on molding protrusion has a snap-on groove molding protrusion, and the snap-on molding protrusion and the snap-on groove molding protrusion are arranged opposite to the snap-on molding lower groove.

[0009] In the above-mentioned electric vehicle headlight mask injection mold with an inverted demolding mechanism, the buckle plate molding structure includes an alignment plate molding part and an alignment frame molding part arranged on the side of the main body molding cavity, and the alignment plate molding part and the alignment frame molding part are respectively staggered with the snap molding protrusions.

[0010] In the above-mentioned electric vehicle headlight mask injection mold with an undercut demoulding mechanism, the alignment plate molding portion includes a plurality of alignment plate molding cavities arranged on the left side of the main body molding cavity.

[0011] In the above-mentioned electric vehicle headlight mask injection mold with an undercut demoulding mechanism, the alignment frame molding part includes a plurality of alignment frame molding cavities arranged on the right side of the main body molding cavity.

[0012] In the above-mentioned electric vehicle headlight mask injection mold with an inverted demolding mechanism, the ejection demolding part includes a plurality of embedded ejection modules arranged in the lower molding seat, and the embedded ejection modules are staggered with the buckle molding lower groove.

[0013] In the above-mentioned electric vehicle headlight mask injection mold with an inverted demoulding mechanism, a push rod fixing plate is provided under the headlight mask molding lower mold, and a plurality of ejection connecting rods are provided on the push rod fixing plate, and the ejection connecting rods are connected to the embedded ejection module.

[0014] In the above-mentioned electric vehicle headlight mask injection mold with an inverted demoulding mechanism, a fixed base plate is provided below the push rod fixing plate, and two anti-deflection irons are provided on the fixed base plate. The push rod fixing plate and the anti-deflection irons are slidably matched.

[0015] In the above-mentioned electric vehicle headlight mask injection mold with an undercut demoulding mechanism, the fixed base plate is provided with a plurality of limit shafts penetrating through the ejector fixing plate, and the ejector fixing plate is slidably matched with the limit shafts.

[0016] Compared with the existing technology, the advantages of the utility model are: during the injection molding process, the utility model brings the headlight mask molding lower mold and the headlight mask molding upper mold close to each other, so that the molding lower seat and the molding upper seat are abutted, the main body molding protrusion is fitted with the main body molding cavity to form a complete cavity, and the molten material is injected into the cavity through the injection molding main board, and the buckle and slot structure of the plastic part can be synchronously formed through the cooperation between the buckle molding lower part and the buckle molding upper part, and the buckle plate molding structure can synchronously form a variety of buckle plate structures of the plastic part, without the need for secondary processing, shortening the process, and opening the mold after injection molding, and ejecting the molded plastic part through the ejection demolding part. During ejection, the ejection demolding part adopts an inverted buckle structure for demolding, which avoids damage to the buckle, slot and buckle plate structure of the plastic part and ensures the overall quality of the plastic part.

[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a partial structural schematic diagram of the utility model.

[0020] Figure 3 It is a partial structural schematic diagram of the utility model in another direction.

[0021] Figure 4 It is a structural schematic diagram of the molding upper insert.

[0022] In the figure: a headlight mask molding lower mold 1, a headlight mask molding upper mold 2, an injection molding main board 3, a molding lower insert 4, a molding upper insert 5, a main body molding protrusion 6, a main body molding cavity 7, a buckle molding lower part 8, a buckle molding upper part 9, a buckle plate molding structure 10, an ejection demolding part 11, a buckle molding lower groove 12, a buckle molding protrusion 13, a buckle groove molding convex block 14, an alignment frame molding part 16, an alignment plate molding part 15, an alignment plate molding cavity 17, an alignment frame molding cavity 18, an embedded ejection module 19, a ejector fixing plate 20, an ejection connecting rod 21, a fixed base plate 22, an anti-deflection iron 23, and a limiting shaft 24. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] like Figure 1-4 As shown, an injection mold for an electric vehicle headlight mask with an inverted demolding mechanism comprises a headlight mask molding lower mold 1 and a headlight mask molding upper mold 2, an injection molding mainboard 3 is arranged above the headlight mask molding upper mold 2, a molding lower insert 4 and a molding upper insert 5 are arranged between the headlight mask molding lower mold 1 and the headlight mask molding upper mold 2, a main body molding protrusion 6 is arranged in the molding lower insert 4, a main body molding cavity 7 is arranged in the molding upper insert 5, the main body molding protrusion 6 corresponds to the position of the main body molding cavity 7 and the shape is matched, a buckle molding lower part 8 is arranged on the side of the main body molding protrusion 6, a buckle molding upper part 9 and a buckle plate molding structure 10 are arranged on the side of the main body molding cavity 7, the buckle molding lower part 8 is arranged opposite to the buckle molding upper part 9, and an ejection demolding piece 11 staggered with the main body molding protrusion 6 is arranged in the molding lower insert 4.

[0025] In this embodiment, during the injection molding process, the headlight mask molding lower mold 1 and the headlight mask molding upper mold 2 are brought close to each other, so that the molding lower seat 4 and the molding upper seat 5 are abutted, and the main body molding protrusion 6 is fitted with the main body molding cavity 7 to form a complete cavity, and the molten material is injected into the cavity through the injection molding main board 3. The buckle and slot structure of the plastic part can be synchronously molded through the cooperation between the buckle molding lower part 8 and the buckle molding upper part 9. The buckle plate molding structure 10 can synchronously mold a variety of buckle plate structures of the plastic part, without the need for secondary processing, shortening the process, and opening the mold after injection molding. The molded plastic part is ejected by the ejection demolding member 11. During ejection, the ejection demolding member 11 adopts an inverted buckle structure for demolding to avoid damage to the buckle, slot and buckle plate structure of the plastic part, thereby ensuring the overall quality of the plastic part.

[0026] Combination Figure 1-4As shown, the snap-on molding lower part 8 includes a plurality of snap-on molding lower grooves 12 arranged on the side of the main body molding protrusion 6, and the snap-on molding upper part 9 includes a snap-on molding protrusion 13 arranged on the side of the main body molding cavity 7, and the snap-on molding protrusion 13 has a snap-on groove molding protrusion 14, and the snap-on molding protrusion 13 and the snap-on groove molding protrusion 14 are arranged opposite to the snap-on molding lower groove 12.

[0027] In this embodiment, during the injection molding process, the buckle molding protrusion 13 and the buckle groove molding protrusion 14 enter into the buckle molding lower groove 12, and the buckle and the buckle groove structure of the plastic part can be formed synchronously through the cooperation of the three.

[0028] Combination Figure 3 , Figure 4 As shown, the buckle plate forming structure 10 includes an alignment plate forming part 15 and an alignment frame forming part 16 arranged on the side of the main body forming cavity 7, and the alignment plate forming part 15 and the alignment frame forming part 16 are respectively arranged alternately with the buckle forming protrusions 13.

[0029] In this embodiment, during the injection molding process, the alignment plate molding part 15 can synchronously cooperate to mold the alignment plate protruding structure of the plastic part, and the alignment frame molding part 16 can synchronously cooperate to mold the alignment frame protruding structure of the plastic part, and protruding structures of various shapes can be molded simultaneously.

[0030] The alignment plate forming portion 15 includes a plurality of alignment plate forming cavities 17 disposed on the left side of the main body forming cavity 7 .

[0031] In this embodiment, during the injection molding process, the alignment plate molding cavity 17 can be synchronously matched with the alignment plate protruding structure of the molded plastic part.

[0032] Combination Figure 4 As shown, the alignment frame forming portion 16 includes a plurality of alignment frame forming cavities 18 arranged on the right side of the main body forming cavity 7 .

[0033] In this embodiment, during the injection molding process, the alignment frame molding cavity 18 can be synchronously matched with the alignment frame protrusion structure of the molded plastic part.

[0034] The ejection demolding part 11 includes a plurality of embedded ejection modules 19 arranged in the molding lower insert seat 4, and the embedded ejection modules 19 are staggered with the buckle molding lower groove 12. A push rod fixing plate 20 is provided under the headlight mask molding lower mold 1, and a plurality of ejection connecting rods 21 are provided on the push rod fixing plate 20, and the ejection connecting rods 21 are connected to the embedded ejection modules 19.

[0035] In this embodiment, after the injection molding is completed, the mold is opened, the ejector fixing plate 20 is moved, and the embedded ejection module 19 is driven by the ejection connecting rod 21 to eject the formed plastic part. The inverted structure is used for demolding and staggered ejection to avoid damage to the buckle, groove and buckle plate structure of the plastic part, thereby ensuring the overall quality of the plastic part.

[0036] Combination Figure 1-2 As shown, a fixed base plate 22 is provided below the push rod fixing plate 20 , and two anti-deflection irons 23 are provided on the fixed base plate 22 , and the push rod fixing plate 20 and the anti-deflection irons 23 are slidably matched.

[0037] In this embodiment, the fixed base plate 22 is used to fix the anti-deflection iron 23. During the movement of the ejector fixing plate 20, the anti-deflection iron 23 can prevent the ejector fixing plate 20 from circumferential deflection, thereby achieving high ejection accuracy.

[0038] Combination Figure 1-2 As shown, the fixed base plate 22 is provided with a plurality of limiting shafts 24 penetrating through the ejector fixing plate 20 , and the ejector fixing plate 20 is slidably matched with the limiting shafts 24 .

[0039] In this embodiment, during the movement of the push rod fixing plate 20, the limiting shaft 24 can improve the displacement accuracy of the push rod fixing plate 20 and play a limiting role.

[0040] The working principle of the utility model is:

[0041] During the injection molding process, the headlight mask molding lower mold 1 and the headlight mask molding upper mold 2 are brought close to each other, so that the molding lower insert seat 4 and the molding upper insert seat 5 are abutted, the main body molding protrusion 6 and the main body molding cavity 7 are fitted to form a complete cavity, and the molten material is injected into the cavity through the injection molding main board 3, and the buckle molding protrusion 13 and the buckle groove molding protrusion 14 enter into the buckle molding lower groove 12. Through the cooperation of the three, the buckle and the slot structure of the plastic part can be synchronously formed, and the alignment plate molding cavity 17 can be synchronously cooperated to form The convex structure of the alignment plate of the molded plastic part and the molding cavity 18 of the alignment frame can be synchronously matched with the convex structure of the alignment frame of the molded plastic part, and convex structures of various shapes can be formed at the same time, without the need for secondary processing, shortening the process, and opening the mold after injection molding, moving the ejector fixing plate 20, and driving the embedded ejection module 19 to eject the molded plastic part through the ejection connecting rod 21. The inverted structure is used for demoulding and dislocation ejection to avoid damage to the buckle, slot and buckle plate structure of the plastic part, thereby ensuring the overall quality of the plastic part.

[0042] The fixed base plate 22 is used to fix the anti-deflection iron 23. During the movement of the ejector fixing plate 20, the anti-deflection iron 23 can prevent the ejector fixing plate 20 from circumferential deflection, and the ejection accuracy is high. During the movement of the ejector fixing plate 20, the limiting shaft 24 can improve the displacement accuracy of the ejector fixing plate 20 and play a limiting role.

[0043] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the spirit of the present invention.

[0044] Although this article uses the terms such as headlight mask molding lower mold 1, headlight mask molding upper mold 2, injection molding main board 3, molding lower insert 4, molding upper insert 5, main body molding protrusion 6, main body molding cavity 7, snap molding lower part 8, snap molding upper part 9, buckle plate molding structure 10, ejection demoulding part 11, snap molding lower groove 12, snap molding protrusion 13, snap groove molding convex block 14, alignment frame molding part 16, alignment plate molding part 15, alignment plate molding cavity 17, alignment frame molding cavity 18, embedded ejection module 19, ejector fixing plate 20, ejection connecting rod 21, fixed base plate 22, anti-deflection iron 23, limit shaft 24, etc. more frequently, it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model. It is contrary to the spirit of the utility model to interpret them as any additional restrictions.

Claims

1. An electric vehicle headlight mask injection mold with an undercut demoulding mechanism, comprising a headlight mask molding lower mold (1) and a headlight mask molding upper mold (2), wherein an injection molding main board (3) is provided above the headlight mask molding upper mold (2), characterized in that: A lower molding seat (4) and an upper molding seat (5) are provided between the headlight mask molding lower mold (1) and the headlight mask molding upper mold (2); a main body molding protrusion (6) is provided in the lower molding seat (4); a main body molding cavity (7) is provided in the upper molding seat (5); the main body molding protrusion (6) corresponds to the main body molding cavity (7) in position and has a shape that matches the main body molding cavity (7); a buckle molding lower part (8) is provided on the side of the main body molding protrusion (6); a buckle molding upper part (9) and a buckle plate molding structure (10) are provided on the side of the main body molding cavity (7); the buckle molding lower part (8) is arranged opposite to the buckle molding upper part (9); and an ejection demoulding part (11) staggered with the main body molding protrusion (6) is provided in the lower molding seat (4).

2. The electric vehicle headlight mask injection mold with an undercut demoulding mechanism according to claim 1, characterized in that: The buckle-molding lower part (8) comprises a plurality of buckle-molding lower grooves (12) arranged on the side of the main body molding protrusion (6).

3. The electric vehicle headlight mask injection mold with an undercut demoulding mechanism according to claim 2, characterized in that: The buckle molding upper part (9) comprises a buckle molding protrusion (13) arranged on the side of the main body molding cavity (7), and the buckle molding protrusion (13) has a buckle groove molding convex block (14), and the buckle molding protrusion (13) and the buckle groove molding convex block (14) are arranged opposite to the buckle molding lower groove (12).

4. The electric vehicle headlight mask injection mold with an undercut demoulding mechanism according to claim 3, characterized in that: The buckle plate forming structure (10) comprises an alignment plate forming part (15) and an alignment frame forming part (16) arranged on the side of the main body forming cavity (7), and the alignment plate forming part (15) and the alignment frame forming part (16) are respectively arranged alternately with the buckle forming protrusion (13).

5. The electric vehicle headlight mask injection mold with an undercut demoulding mechanism according to claim 4, characterized in that: The alignment plate forming portion (15) comprises a plurality of alignment plate forming cavities (17) arranged on the left side of the main body forming cavity (7).

6. The electric vehicle headlight mask injection mold with an undercut demoulding mechanism according to claim 5, characterized in that: The alignment frame forming part (16) comprises a plurality of alignment frame forming concave cavities (18) arranged on the right side of the main body forming concave cavity (7).

7. The electric vehicle headlight mask injection mold with an undercut demoulding mechanism according to claim 6, characterized in that: The ejection demoulding component (11) comprises a plurality of embedded ejection modules (19) arranged in the lower molding seat (4), and the embedded ejection modules (19) are arranged alternately with the buckle molding lower groove (12).

8. The electric vehicle headlight mask injection mold with an undercut demoulding mechanism according to claim 7, characterized in that: A push rod fixing plate (20) is provided below the headlight mask molding lower mold (1), and a plurality of ejection connecting rods (21) are provided on the push rod fixing plate (20). The ejection connecting rods (21) are connected to the embedded ejection module (19).

9. The electric vehicle headlight mask injection mold with an undercut demoulding mechanism according to claim 8, characterized in that: A fixed base plate (22) is provided below the push rod fixing plate (20), two anti-deflection irons (23) are provided on the fixed base plate (22), and the push rod fixing plate (20) and the anti-deflection irons (23) are slidably matched.

10. The electric vehicle headlight mask injection mold with an undercut demoulding mechanism according to claim 9, characterized in that: The fixed base plate (22) is provided with a plurality of limiting shafts (24) penetrating through the push rod fixing plate (20), and the push rod fixing plate (20) is slidably matched with the limiting shafts (24).

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