Injection mold for high-transmittance thick-wall headlamp lens of electric vehicle

Abstract

The utility model belongs to the technical field of molds, and particularly relates to an injection mold for a high-transmittance thick-wall headlamp lens of an electric vehicle. The headlamp lens forming die comprises a headlamp lens forming lower die and a headlamp lens forming upper die. In the injection molding process, the lower multi-cavity forming structure and the upper multi-cavity forming structure abut against each other and are matched to form a plurality of plastic part cavities, and molten materials are subjected to injection molding and flow dividing through the injection molding flow dividing part and are synchronously fed into the multiple cavities; the lower multi-cavity forming structure and the upper multi-cavity forming structure are matched to synchronously form a plurality of headlamp lens plastic parts with side buckle plates and hole groove structures, the side buckle plates and the hole grooves of the plastic parts do not need to be subjected to secondary machining treatment, after injection molding is completed, cooling water is injected into the embedded cooling part, the embedded cooling structure is adopted, and the cooling efficiency is improved. According to the mold, the multiple molded plastic parts can be cooled in all directions, the cooling effect is good, the mold is opened after cooling, and the multiple molded plastic parts are synchronously ejected out through the ejection part.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an injection mold for a high-transparency and thick-walled front headlight lens of an electric vehicle. Background Art

[0002] Injection mold is a tool for producing plastic products, and it is also a tool for giving plastic products a complete structure and precise size. Injection molding is a processing method used in mass production of certain complex-shaped parts. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by the injection molding machine, and after cooling and solidification, a molded product is obtained. The injection mold consists of a movable mold and a fixed mold. The movable mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity. When the mold is opened, the movable mold and the fixed mold are separated to remove the plastic product. The LED headlight cover of an electric vehicle is a common product processed and molded by an injection mold. The existing mold used for the injection molding of this product generally adopts a one-mold-one-out structure during the injection molding process, and it is difficult to synchronously mold the side buckle plate and the hole groove of the plastic part, and secondary processing is required. It is also difficult to achieve all-round cooling of the plastic part. Therefore, it is urgent to design an injection mold for a high-transparency and thick-walled headlight lens of an electric vehicle 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 production mold for automobile headlight lenses [application number: 201811343662.3], which includes, from top to bottom, an upper reset plate, a fixed mold, an upper mold core, a lower mold core, an ejector plate, an ejector reset plate, a movable mold and a lower reset plate. A guide column is provided between the fixed mold and the movable mold. It is characterized in that the upper mold core is provided with three fixed mold inserts distributed along the central circumference of the lower surface of the upper mold core, and correspondingly, the upper surface of the lower mold core is provided with three movable mold inserts corresponding to the fixed mold inserts, and the lower end of the lower mold core is connected to a rotating device. Utility Model Content

[0004] The utility model aims to solve the above problems and provides an injection mold for a high-transparency and thick-walled front headlight lens of an electric vehicle.

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

[0006] A high-transparency and thick-walled injection mold for a headlight lens of an electric vehicle comprises a headlight lens molding lower mold and a headlight lens molding upper mold, an injection diverter is arranged above the headlight lens molding upper mold, a lower molding panel and an upper molding panel are arranged between the headlight lens molding lower mold and the headlight lens molding upper mold, a lower multi-cavity molding structure is arranged in the lower molding panel, an upper multi-cavity molding structure is arranged in the upper molding panel, the lower multi-cavity molding structure corresponds to the upper multi-cavity molding structure in position and matches the upper multi-cavity molding structure in shape, an embedded cooling component is arranged between the lower molding panel and the upper molding panel, and an ejector is arranged below the headlight lens molding lower mold.

[0007] In the above-mentioned electric vehicle high-transparency thick-walled headlight lens injection mold, the lower multi-cavity molding structure includes a plurality of lower molding cavities arranged in the lower molding panel, and three middle molding protrusions are arranged in the lower molding cavity, and the top of the middle molding protrusion has a concave surface and a slope.

[0008] In the above-mentioned injection mold for the high-transparency and thick-walled front headlight lens of an electric vehicle, side buckle molding lower parts are provided on both sides of the lower molding cavity, and the side buckle molding lower parts are connected to the lower molding cavity.

[0009] In the above-mentioned electric vehicle high-transparency thick-walled headlight lens injection mold, the side buckle molding lower part includes lower concave cavities arranged on both sides of the lower molding cavity, and the lower concave cavities are provided with hole groove molding convex shafts.

[0010] In the above-mentioned electric vehicle high-transparency thick-walled headlight lens injection mold, the upper multi-cavity molding structure includes a plurality of upper molding cavities arranged in the upper molding panel, the upper molding cavity is composed of three sunken cavities, and the upper molding cavity is arranged opposite to the lower molding cavity.

[0011] In the above-mentioned injection mold for the high-transparency and thick-walled front headlight lens of an electric vehicle, side buckle molding upper parts are provided on both sides of the upper molding cavity, and the positions of the side buckle molding upper parts and the lower concave cavity correspond.

[0012] In the above-mentioned electric vehicle high-transparency thick-walled headlight lens injection mold, the side buckle molding upper part includes side buckle molding protrusions arranged on both sides of the upper molding cavity, and the side buckle molding protrusions are arranged opposite to the lower concave cavity.

[0013] In the above-mentioned electric vehicle high-transparency thick-walled headlight lens injection mold, the embedded cooling component includes an embedded cooling water pipe group and a water inlet pipe arranged between the lower molding panel and the upper molding panel, and the water inlet pipe is connected to the embedded cooling water pipe group.

[0014] In the above-mentioned electric vehicle high-transparency thick-walled front headlight lens injection mold, the injection-molded diverter component includes an injection-molded main board and an injection-molded diverter plate arranged above the front headlight lens molding upper mold.

[0015] In the above-mentioned electric vehicle high-transparency thick-walled front headlight lens injection mold, the ejector includes an ejector fixing plate arranged below the front headlight lens molding lower mold, and a plurality of ejector rods are provided on the ejector fixing plate.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. In the injection molding process of the utility model, the headlight lens molding lower mold and the headlight lens molding upper mold are brought close to each other, so that the lower molding panel and the upper molding panel are abutted and matched, and the lower multi-cavity molding structure and the upper multi-cavity molding structure are abutted and matched to form multiple plastic part cavities. The molten material is injection-molded and diverted through the injection molding diverter, and the molten material is synchronously fed into the multiple cavities. The lower multi-cavity molding structure cooperates with the upper multi-cavity molding structure to synchronously mold multiple headlight lens plastic parts with side buckle plates and hole groove structures, and there is no need to perform secondary processing on the side buckle plates and hole grooves of the plastic parts. After the injection molding is completed, cooling water is injected into the embedded cooling part. The embedded cooling structure is adopted, and multiple molded plastic parts can be cooled in all directions, and the cooling effect is good. After cooling, the mold is opened, and the multiple molded plastic parts are synchronously ejected through the ejector.

[0018] 2. After the injection molding is completed, the utility model injects cooling water into the water inlet pipe, and sends the cooling water into the embedded cooling water pipe group through the water inlet pipe. The embedded cooling structure can perform all-round cooling on multiple molded plastic parts, and the cooling effect is good.

[0019] 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

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a partial structural schematic diagram of the utility model.

[0022] Figure 3 It is a partial structural schematic diagram of the utility model in another direction.

[0023] Figure 4 It is a partial structural schematic diagram of the utility model in another direction.

[0024] In the figure: a lower mold 1 for molding a headlight lens, an upper mold 2 for molding a headlight lens, an injection molded diverter 3, a lower molded panel 4, an upper molded panel 5, a lower multi-cavity molding structure 6, an upper multi-cavity molding structure 7, an embedded cooling component 8, an ejector 9, a lower molding cavity 10, a middle molding protrusion 11, a side buckle molding lower part 12, a lower concave cavity 13, a hole and groove molding convex shaft 14, an upper molding cavity 15, a side buckle molding upper part 16, a side buckle molding protrusion 17, an embedded cooling water pipe group 18, a water inlet pipe 19, an injection molded main board 20, an injection molded diverter plate 21, an ejector fixing plate 22, and an ejector rod 23. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-4 As shown, an injection mold for a high-transparency and thick-walled headlight lens of an electric vehicle comprises a headlight lens molding lower mold 1 and a headlight lens molding upper mold 2, an injection diverter 3 is provided above the headlight lens molding upper mold 2, a lower molding panel 4 and an upper molding panel 5 are provided between the headlight lens molding lower mold 1 and the headlight lens molding upper mold 2, a lower multi-cavity molding structure 6 is provided in the lower molding panel 4, an upper multi-cavity molding structure 7 is provided in the upper molding panel 5, the lower multi-cavity molding structure 6 corresponds to the upper multi-cavity molding structure 7 in position and has a matching shape, an embedded cooling component 8 is provided between the lower molding panel 4 and the upper molding panel 5, and an ejector 9 is provided below the headlight lens molding lower mold 1.

[0027] In this embodiment, during the injection molding process, the headlight lens molding lower mold 1 and the headlight lens molding upper mold 2 are brought close to each other, so that the lower molding panel 4 and the upper molding panel 5 are abutted and matched, and the lower multi-cavity molding structure 6 and the upper multi-cavity molding structure 7 are abutted and matched to form multiple plastic part cavities. The molten material is injection-diverted through the injection molding diverter 3, and the molten material is simultaneously fed into the multiple cavities. The lower multi-cavity molding structure 6 and the upper multi-cavity molding structure 7 cooperate to synchronously mold multiple headlight lens plastic parts with side buckle plates and hole groove structures, and there is no need to perform secondary processing on the side buckle plates and hole grooves of the plastic parts. After the injection molding is completed, cooling water is injected into the embedded cooling part 8. The embedded cooling structure is adopted to perform all-round cooling on multiple molded plastic parts with good cooling effect. After cooling, the mold is opened, and the multiple molded plastic parts are ejected synchronously by the ejector 9.

[0028] Combination Figure 1-4 As shown, the lower multi-cavity molding structure 6 includes a plurality of lower molding cavities 10 arranged in the lower molding panel 4. Three middle molding protrusions 11 are arranged in the lower molding cavity 10. The top of the middle molding protrusion 11 has a concave surface and an inclined surface.

[0029] Specifically, the lower molding cavity 10 cooperates with the middle molding protrusion 11 to synchronously mold the lower structure of the plastic part, and the concave surface and the inclined surface on the top of the middle molding protrusion 11 can cooperate with the arc surface and the inclined surface of the molded plastic part.

[0030] Side buckle molding lower parts 12 are provided on both sides of the lower molding cavity 10 , and the side buckle molding lower parts 12 are connected to the lower molding cavity 10 .

[0031] In this embodiment, the side buckle molding lower portion 12 is used to synchronously mold the lower structure of the side buckle plate of the plastic part.

[0032] Combination Figure 3 , Figure 4 As shown, the side buckle molding lower part 12 includes a lower concave cavity 13 arranged on both sides of the lower molding cavity 10, and a hole groove molding convex shaft 14 is provided in the lower concave cavity 13.

[0033] In this embodiment, the lower concave cavity 13 is used to synchronously form the lower structure of the side buckle plate of the plastic part, and the hole-groove forming convex shaft 14 is used to synchronously form the buckle groove structure of the side buckle plate of the plastic part.

[0034] The upper multi-cavity molding structure 7 includes a plurality of upper molding cavities 15 disposed in the upper molding panel 5 . The upper molding cavity 15 is composed of three recessed cavities. The upper molding cavity 15 is disposed opposite to the lower molding cavity 10 .

[0035] In this embodiment, the upper molding cavity 15 is used to simultaneously mold the upper structure of the plastic part.

[0036] Combination Figure 3-4 As shown, side buckle molding upper parts 16 are provided on both sides of the upper molding cavity 15 , and the side buckle molding upper parts 16 correspond to the positions of the lower concave cavity 13 .

[0037] In this embodiment, the side buckle molding upper portion 16 is used to synchronously mold the upper structure of the side buckle plate of the plastic part.

[0038] The side buckle molding upper portion 16 includes side buckle molding protrusions 17 arranged on both sides of the upper molding cavity 15 , and the side buckle molding protrusions 17 are arranged opposite to the lower concave cavity 13 .

[0039] In this embodiment, the side buckle molding protrusion 17 is used to synchronously mold the upper structure of the side buckle plate of the plastic part.

[0040] Combination Figure 2-4 As shown, the embedded cooling member 8 includes an embedded cooling water pipe group 18 and a water inlet pipe 19 disposed between the lower molding panel 4 and the upper molding panel 5 , and the water inlet pipe 19 is connected to the embedded cooling water pipe group 18 .

[0041] In this embodiment, after injection molding is completed, cooling water is injected into the water inlet pipe 19, and the cooling water is sent to the embedded cooling water pipe group 18 through the water inlet pipe 19. The embedded cooling structure can perform all-round cooling on multiple molded plastic parts, and the cooling effect is good.

[0042] Combination Figure 1 As shown, the injection molded flow divider 3 includes an injection molded main board 20 and an injection molded flow divider plate 21 which are arranged above the headlight lens molding upper mold 2.

[0043] In this embodiment, during injection molding, the molten material is injection-divided through the injection molding main board 20 and the injection molding diverter plate 21, and the molten material is synchronously delivered to multiple cavities.

[0044] Combination Figure 1-2 As shown, the ejector member 9 includes an ejector fixing plate 22 disposed below the headlight lens molding lower mold 1 , and a plurality of ejector rods 23 are disposed on the ejector fixing plate 22 .

[0045] In this embodiment, after cooling is completed, the mold is opened, and the ejection fixing plate 22 is moved to drive the ejection rod 23 to eject multiple plastic parts synchronously.

[0046] The working principle of the utility model is:

[0047] During the injection molding process, the headlight lens molding lower mold 1 and the headlight lens molding upper mold 2 are brought close to each other, so that the lower molding panel 4 and the upper molding panel 5 are abutted and matched, so that the lower multi-cavity molding structure 6 and the upper multi-cavity molding structure 7 are abutted and matched to form multiple plastic part cavities, and the molten material is injection-molded and diverted through the injection molding main board 20 and the injection molding diverter plate 21, and the molten material is synchronously fed into the multiple cavities, and the lower molding cavity 10 cooperates with the middle molding protrusion 11 to synchronously mold the lower structure of the plastic part, and the middle molding The concave surface and the inclined surface at the top of the protrusion 11 can cooperate with the arc surface and the inclined surface of the molded plastic part. The upper molding cavity 15 is used to synchronously mold the upper structure of the plastic part. The lower concave cavity 13 is used to synchronously mold the lower structure of the side buckle plate of the plastic part. The hole groove molding convex shaft 14 is used to synchronously mold the buckle groove structure of the side buckle plate of the plastic part. The side buckle molding protrusion 17 is used to synchronously mold the upper structure of the side buckle plate of the plastic part. Multiple headlight lens plastic parts with side buckle plates and hole groove structures can be synchronously molded without secondary processing of the side buckle plates and hole grooves of the plastic parts.

[0048] After the injection molding is completed, the cooling water is injected into the water inlet pipe 19, and the cooling water is sent to the embedded cooling water pipe group 18 through the water inlet pipe 19. The embedded cooling structure can be used to cool multiple molded plastic parts in an all-round manner, and the cooling effect is good.

[0049] After cooling is completed, the mold is opened, and the ejection fixing plate 22 is moved to drive the ejection rod 23 to eject multiple plastic parts synchronously.

[0050] 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.

[0051] Although the following terms are used more frequently in this article, such as the headlight lens molding lower mold 1, the headlight lens molding upper mold 2, the injection molded flow divider 3, the lower molded panel 4, the upper molded panel 5, the lower multi-cavity molding structure 6, the upper multi-cavity molding structure 7, the embedded cooling member 8, the ejector 9, the lower molding cavity 10, the middle molding protrusion 11, the side buckle molding lower part 12, the lower concave cavity 13, the hole groove molding convex shaft 14, the upper molding cavity 15, the side buckle molding upper part 16, the side buckle molding protrusion 17, the embedded cooling water pipe group 18, the water inlet pipe 19, the injection molded main board 20, the injection molded flow divider 21, the ejector fixing plate 22, the ejector rod 23, etc., the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model, and interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An injection mold for a high-transparency and thick-walled headlight lens of an electric vehicle, comprising a lower mold (1) for molding a headlight lens and an upper mold (2) for molding a headlight lens, characterized in that: An injection molding diverter (3) is provided above the headlight lens molding upper mold (2); a lower molding panel (4) and an upper molding panel (5) are provided between the headlight lens molding lower mold (1) and the headlight lens molding upper mold (2); a lower multi-cavity molding structure (6) is provided in the lower molding panel (4); an upper multi-cavity molding structure (7) is provided in the upper molding panel (5); the lower multi-cavity molding structure (6) corresponds to the upper multi-cavity molding structure (7) in position and matches the upper multi-cavity molding structure (7); an embedded cooling component (8) is provided between the lower molding panel (4) and the upper molding panel (5); and an ejector (9) is provided below the headlight lens molding lower mold (1).

2. The electric vehicle high-transparency thick-walled headlight lens injection mold according to claim 1, characterized in that: The lower multi-cavity molding structure (6) comprises a plurality of lower molding cavities (10) arranged in the lower molding panel (4), three middle molding protrusions (11) are arranged in the lower molding cavity (10), and the top of the middle molding protrusion (11) has a concave surface and an inclined surface.

3. The electric vehicle high-transparency thick-walled headlight lens injection mold according to claim 2, characterized in that: Side buckle molding lower parts (12) are provided on both sides of the lower molding cavity (10), and the side buckle molding lower parts (12) are connected to the lower molding cavity (10).

4. The electric vehicle high-transparency thick-walled headlight lens injection mold according to claim 3, characterized in that: The side buckle molding lower part (12) comprises lower concave cavities (13) arranged on both sides of the lower molding cavity (10), and a hole groove molding convex shaft (14) is arranged in the lower concave cavity (13).

5. The electric vehicle high-transparency thick-walled headlight lens injection mold according to claim 4, characterized in that: The upper multi-cavity molding structure (7) comprises a plurality of upper molding cavities (15) arranged in the upper molding panel (5), wherein the upper molding cavity (15) is composed of three recessed cavities, and the upper molding cavity (15) is arranged opposite to the lower molding cavity (10).

6. The electric vehicle high-transparency thick-walled headlight lens injection mold according to claim 5, characterized in that: Side buckle molding upper parts (16) are provided on both sides of the upper molding cavity (15), and the positions of the side buckle molding upper parts (16) correspond to those of the lower concave cavity (13).

7. The electric vehicle high-transparency thick-walled headlight lens injection mold according to claim 6, characterized in that: The side buckle molding upper part (16) comprises side buckle molding protrusions (17) arranged on both sides of the upper molding cavity (15), and the side buckle molding protrusions (17) are arranged opposite to the lower concave cavity (13).

8. The electric vehicle high-transparency thick-walled headlight lens injection mold according to claim 7, characterized in that: The embedded cooling element (8) comprises an embedded cooling water pipe group (18) and a water inlet pipe (19) arranged between the lower molding panel (4) and the upper molding panel (5); the water inlet pipe (19) is connected to the embedded cooling water pipe group (18).

9. The electric vehicle high-transparency thick-walled headlight lens injection mold according to claim 1, characterized in that: The injection molded flow divider (3) comprises an injection molded main board (20) and an injection molded flow divider plate (21) which are arranged above the headlight lens molding upper mold (2).

10. The electric vehicle high-transparency thick-walled headlight lens injection mold according to claim 1, characterized in that: The ejector member (9) comprises an ejector fixing plate (22) arranged below the headlight lens molding lower mold (1), and a plurality of ejector rods (23) are arranged on the ejector fixing plate (22).

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