Automobile tail lamp injection molding mold

Abstract

This utility model discloses an injection molding mold for automotive taillights, comprising: a positioning base with a molding base inside, the molding base having a molding bottom plate on its surface; a positioning top seat with a molding top seat inside, the molding top seat having a protruding connecting block and being movably connected to the molding bottom plate; and a limiting plate disposed between the molding base and the molding top seat, the limiting plate having a through-hole groove, the pressing top plate passing through the through-hole and being movably connected to the locking bottom plate, the limiting plate having uniformly distributed stripes and protruding blocks on its surface. This utility model allows for quick adjustment of the limiting plate's model and style to produce automotive taillights of different shapes and styles, reducing mold opening and production costs. Furthermore, it allows for simple and quick adjustment of the injection volume according to different taillight models, and can buffer the extrusion pressure during the injection molding process after bonding, improving the overall service life.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts production mold technology, and in particular to an injection molding mold for automotive taillights. Background Technology

[0002] Automotive taillights are the core lighting and signaling devices at the rear of a vehicle. Their core function is to convey information about the vehicle's driving status (such as braking, steering, reversing, and outline) to vehicles and pedestrians behind, ensuring driving safety at night and in complex road conditions. Their design must simultaneously meet the requirements of functionality, safety, durability, and aesthetic harmony.

[0003] The plastic components of car taillights, such as the lamp cover and lamp housing, are all produced through injection molding. Currently, with the continuous development and application of the automotive industry, car taillights usually also need to meet the aesthetic needs of users. Taillights that can emit different styles or shapes of light, different textured surfaces, and different curvatures are often more popular with users. However, currently, the surface of the finished product is usually further processed after injection molding, which adds extra processing steps. Moreover, different models of taillights require different molds for processing, resulting in high production costs. Utility Model Content

[0004] This utility model provides an injection molding mold for automotive taillights, which can be integrated into the injection molding process according to product requirements. It can quickly adjust the model and style of the limiting plate to produce different shapes and styles of automotive taillights, reducing mold opening costs and production costs. Moreover, the injection volume can be easily and quickly adjusted according to different taillight models. It can also buffer the extrusion pressure during the injection stamping process after bonding, thereby improving the overall service life.

[0005] To solve the above-mentioned technical problems, this utility model provides an injection molding die for automotive taillights, comprising:

[0006] The positioning base has a molding base inside. The molding base has a molding bottom plate on its surface and molding side plates on both sides of the molding bottom plate. A connecting bent plate is provided between the molding side plates and the molding bottom plate. A locking bottom plate is fixedly provided on the surface of the molding side plates. Pressure-relieving strips and cooling pipes are evenly provided inside the molding base and extend to the bottom of the molding base.

[0007] The positioning top seat has a forming top seat inside. The forming top seat has a protruding connecting block and is movably connected to the forming bottom plate. Both sides of the protruding connecting block have recessed connecting grooves. A pressing top plate is fixedly provided on the surface of the recessed connecting groove. The pressing top plate and the locking bottom plate are arranged in the same vertical direction.

[0008] A limiting plate is disposed between the forming base and the forming top seat. A locking groove is provided through the inside of the limiting plate. The pressing top plate passes through the locking groove and is movably connected to the locking bottom plate. Stripes and protrusions are evenly provided on the surface of the limiting plate.

[0009] As a preferred embodiment of the above technical solution, the positioning base is provided with guide posts evenly distributed on its surface, and the positioning top seat is provided with a guide groove inside, with the guide posts movably disposed inside the guide groove.

[0010] As a preferred embodiment of the above technical solution, the top of the positioning top seat is provided with an installation top seat, the installation top seat is provided with an injection port, the bottom of the injection port is connected to a conveying pipe and is located inside the positioning top seat, the outside of the conveying pipe is connected to a side pipe and both the conveying pipe and the side pipe are provided with regulating valves, and the bottom of both the conveying pipe and the side pipe are connected to an injection pipe.

[0011] As a preferred embodiment of the above technical solution, the molding base plate is provided with positioning blocks on both the front and rear sides. The positioning blocks are arranged in two sets and are symmetrically arranged. The surfaces of the two sets of positioning blocks are respectively provided with a first protrusion and a first groove. The molding side plate and the connecting bending plate are both set to be arc-shaped. A supporting side plate is fixedly provided on the outer side of the top end of the molding side plate.

[0012] As a preferred embodiment of the above technical solution, the number of the limiting discs is set to two, and a limiting locking block is provided between the two limiting discs. The limiting locking blocks are set to two sets and are symmetrically arranged. The bottom surfaces of the two sets of limiting locking blocks are respectively provided with a second protrusion and a second groove. The second protrusion and the second groove are respectively matched with the first protrusion and the first groove. The end of the limiting disc is provided with a hanging ring groove, which is movably disposed on the top surface of the support side plate.

[0013] As a preferred embodiment of the above technical solution, the top surface of the molding top seat is provided with a material inlet, which is matched with the injection tube, and the locking bottom plate, the pressing top plate and the locking groove are all provided in pairs and symmetrically arranged.

[0014] As a preferred embodiment of the above technical solution, the positioning base is provided with an inclined insert rod inside, the pressure relief strip is movably disposed inside the inclined insert rod, the cooling pipe is arranged around the bottom of the molding side plate and the molding base plate, and one end of the cooling pipe passes through the molding base and extends to the outside of the positioning base.

[0015] As a preferred embodiment of the above technical solution, the bottom of the positioning base is provided with an installation base, the installation base is provided with an ejector plate inside, the ejector plate is provided with ejector pins evenly distributed on its surface, the ejector pins are provided through the positioning base and the forming base, and the outer side of the ejector pins is provided with pressure relief rods evenly distributed.

[0016] As a preferred embodiment of the above technical solution, both the positioning base and the positioning top are connected to an extension rod on their outer sides, and a moving component is connected to the outer side of the extension rod. Both the positioning base and the positioning top are provided with a detection block on their surface, and a detection block is provided on the inner side of the detection block.

[0017] This utility model provides an injection molding mold for automotive taillights, comprising a positioning base, a positioning top seat, a molding base, a molding top seat, and a limiting plate. As the positioning top seat moves downwards, it drives the molding top seat and the limiting plate, which are clamped to the surface of the molding top seat, to move downwards and gradually approach the molding base. The limiting locking block and the hanging ring groove engage with the positioning block and the supporting side plate on the surface, thereby fitting the molding top seat, the limiting plate, and the molding base together. The pressing top plate is tightly fitted to the locking bottom plate through the limiting locking block. At this time, the protruding connecting block is pressed against the surface of the molding bottom plate, and the recessed connecting groove is pressed against the top surface of the limiting plate, while the bottom surface of the limiting plate is pressed against the molding side plate. After the molding base and the inner and outer surfaces of the molding top seat are tightly fitted, injection molding can be performed. Furthermore, the different stripes and protrusions on the surface of the limiting plate provide space for different shapes and styles of automotive taillights. The injection plastic enters between the molding top seat and the molding base through the injection port and the delivery pipe, and can be adjusted according to different positions... The amount of plastic injected and the injection time are adjusted by a regulating valve, allowing for the addition of plastic of different thicknesses to different parts of the taillight. The injection volume can be easily and quickly adjusted according to different taillight models. During the injection process after bonding, downward pressure is generated; the inclined pressure-reducing strip drives the molding base and molding top to slowly descend into the positioning base, avoiding rigid impact on the molding process and improving service life. Cooling pipes are arranged around the inside of the molding base, allowing for the circulation of cooling water for rapid cooling and improving molding efficiency. The entire mold can be integrated for injection molding according to product requirements. Only the limit plate 5 needs to be adjusted and replaced to limit the production of taillights with different patterns and curvatures, reducing mold opening and production costs. The injection volume can be easily and quickly adjusted according to different taillight models, and the pressure during the injection molding process after bonding also buffers the overall service life.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded view of the positioning base and the molding base of this utility model;

[0021] Figure 3 This is an exploded view of the positioning top seat and the forming top seat of this utility model;

[0022] Figure 4 This is a bottom view of the positioning top seat and the forming top seat of this utility model;

[0023] Figure 5 This is a schematic diagram of the molding base structure of this utility model.

[0024] In the diagram: 1. Positioning base, 11. Guide column, 2. Positioning top seat, 21. Conveying pipe, 22. Injection pipe, 22. Regulating valve, 3. Molding base, 31. Molding bottom plate, 32. Molding side plate, 33. Connecting bend plate, 34. Positioning block, 35. Locking bottom plate, 36. Supporting side plate, 37. Pressure relief strip, 38. Cooling pipe, 4. Molding top seat, 41. Inlet, 42. Protruding connecting block, 43. Recessed connecting groove, 44. Pressing top plate, 5. Limiting plate, 51. Locking groove, 52. Limiting locking block, 6. Mounting base, 61. Ejector bottom plate, 62. Ejector pin, 63. Pressure relief rod, 7. Mounting top seat, 71. Injection port, 8. Extension rod, 81. Detection block. Detailed Implementation

[0025] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] See Figure 1-5 This utility model embodiment provides an injection molding die for automotive taillights, comprising:

[0027] The positioning base 1 has a molding base 3 inside. The surface of the molding base 3 is provided with a molding bottom plate 31. Both sides of the molding bottom plate 31 are provided with molding side plates 32. A connecting bending plate 33 is provided between the molding side plates 32 and the molding bottom plate 31. A locking bottom plate 35 is fixedly provided on the surface of the molding side plates 32. The molding base 3 is evenly provided with pressure-relieving strips 37 and cooling pipes 38 inside, which extend to the bottom of the molding base 3.

[0028] The positioning top seat 2 has a forming top seat 4 inside. The forming top seat 4 has a protruding connecting block 42 and is movably connected to the forming bottom plate 31. Both sides of the protruding connecting block 42 have recessed connecting grooves 43. The surface of the recessed connecting grooves 43 is fixedly provided with a pressing top plate 44. The pressing top plate 44 and the locking bottom plate 35 are set in the same vertical direction.

[0029] The limiting plate 5 is located between the forming base 3 and the forming top plate 4. The limiting plate 5 has a through slot 51. The pressing top plate 44 passes through the slot 51 and is movably connected to the locking base plate 35. The surface of the limiting plate 5 is evenly provided with stripes and protrusions.

[0030] This embodiment provides an injection molding mold for automotive taillights, which includes a positioning base 1, a positioning top seat 2, a molding base 3, a molding top seat 4, and a limiting plate 5. As the positioning top seat 2 moves downwards, it drives the molding top seat 4 and the limiting plate 5, which is clamped to the surface of the molding top seat 4, to move downwards and gradually approach the molding base 3. The limiting locking block 52 and the hanging ring groove fit and clamp with the positioning block 34 and the supporting side plate 36 on the surface of the molding base 3, thereby fitting the molding top seat 4, the limiting plate 5, and the molding base 3 together, and pressing the top plate 44 through the limiting lock. The clamping block 52 is tightly fitted to the locking base plate 35. At this time, the protruding connecting block 42 is tightly fitted to the surface of the molding base plate 31, and the recessed connecting groove 43 is tightly fitted to the top surface of the limiting plate 5. At the same time, the bottom surface of the limiting plate 5 is tightly fitted to the molding side plate 32. After the molding base 3 and the molding top plate 4 are tightly fitted inside and outside, injection molding can be performed. Moreover, the different stripes and protrusions on the surface of the limiting plate 5 provide space for different shapes and styles of car taillights. The injection plastic enters the molding top plate through the injection port 71 and the delivery pipe 21. Between seat 4 and molding base 3, the amount of plastic injected and the injection time can be adjusted by regulating valve 22 according to different positions, so as to add plastic of different thicknesses to different parts of the taillight. Moreover, the injection volume can be easily and quickly adjusted according to different taillight models. After bonding, the downward extrusion force generated during the injection process can be driven by the inclined pressure relief strip 37 to slowly move the molding base 3 and molding top seat 4 into the positioning base 1, avoiding rigid impact on molding and improving service life. The cooling pipe 38 is arranged around the inside of the molding base 3, which can circulate cooling water for rapid cooling molding and improve molding efficiency. The entire mold can be integrated for injection molding according to product requirements. The model and style of the limit plate 5 can be quickly adjusted to process and produce different shapes and styles of car taillights, reducing mold opening costs and production costs. Moreover, the injection volume can be easily and quickly adjusted according to different taillight models. It can also buffer the extrusion force during the injection stamping process after bonding, and improve the overall service life.

[0031] In a further embodiment of this invention, guide posts 11 are uniformly provided on the surface of the positioning base 1, and a guide groove is provided inside the positioning top seat 2, with the guide posts 11 movably disposed inside the guide groove.

[0032] The guide post 11 and guide groove in this embodiment can ensure that the positioning base 1 and the positioning top seat 2 are always in the same vertical direction, thereby ensuring that the internal molding top seat 4 and molding base 3 will not be vertically offset.

[0033] In a further embodiment of this invention, the top of the positioning top seat 2 is provided with a mounting top seat 7, the mounting top seat 7 is provided with an injection port 71, the bottom of the injection port 71 is connected to a conveying pipe 21 and is located inside the positioning top seat 2, the outside of the conveying pipe 21 is connected to a side pipe and both the surface of the conveying pipe 21 and the side pipe are provided with regulating valves 22, and the bottom of both the conveying pipe 21 and the side pipe are connected to an injection pipe 211.

[0034] In this embodiment, after the injection port 71 is connected to the injection molding machine, the injection plastic enters between the molding top seat 4 and the molding base 3 through the delivery pipe 21. Moreover, the amount of injection plastic and the injection time can be adjusted by the regulating valve 22 according to the amount of injection plastic at different positions, so as to add injection plastic of different thicknesses to different parts of the taillight. Furthermore, the injection volume can be easily and quickly adjusted according to different taillight models.

[0035] In a further embodiment of this invention, the molding base plate 31 is provided with positioning blocks 34 on both the front and rear sides. The positioning blocks 34 are arranged in two sets and are symmetrically arranged. The surfaces of the two sets of positioning blocks 34 are respectively provided with a first protrusion and a first groove. The molding side plate 32 and the connecting bending plate 33 are both designed to be arc-shaped. A supporting side plate 36 is fixedly provided on the outer side of the top end of the molding side plate 32.

[0036] In this embodiment, the positioning block 34 and the supporting side plate 36 can clamp and limit the top limiting plate 5, preventing the limiting plate 5 from being impacted and moved during the injection molding process, thus affecting the finished product.

[0037] In a further embodiment of this invention, the number of limiting discs 5 is set to two, and a limiting locking block 52 is provided between the two limiting discs 5. The limiting locking blocks 52 are set in two sets and are symmetrically arranged. The bottom surfaces of the two sets of limiting locking blocks 52 are respectively provided with a second protrusion and a second groove. The second protrusion and the second groove are respectively matched with the first protrusion and the first groove. The end of the limiting disc 5 is provided with a hanging ring groove, which is movably disposed on the top surface of the supporting side plate 36.

[0038] In this embodiment, during the downward movement of the limiting plate 5, one end of the limiting plate 5 is positioned and connected by the limiting locking block 52 and the positioning block 34, and then positioned by the hanging ring groove and the top surface of the supporting side plate 36. With the presence of a molded top seat 4 on the top of the limiting plate 5, the position of the limiting plate 5 is fixed and will not shift.

[0039] In a further embodiment of this invention, the top surface of the molding top seat 4 is provided with a feed port 41, which is matched with the injection tube 211. The locking bottom plate 35, the pressing top plate 44, and the locking groove 51 are all provided in pairs and are arranged symmetrically.

[0040] In this embodiment, as the positioning top seat 2 moves downward, it drives the forming top seat 4 and the limiting plate 5 clamped on the surface of the forming top seat 4 to move downward and gradually approach the forming base 3. The limiting locking block 52 and the hanging ring groove fit and clamp with the positioning block 34 and the supporting side plate 36 on the surface of 3, thereby fitting the forming top seat 4, the limiting plate 5 and the forming base 3 together. The pressing top plate 44 is tightly fitted with the locking bottom plate 35 through the limiting locking block 52, providing space for the installation of the taillight bulb and lamp plate, and at the same time, it can maintain greater stability after the overall fit.

[0041] In a further embodiment of this invention, the positioning base 1 is provided with an inclined insert rod, the pressure relief strip 37 is movably disposed inside the inclined insert rod, and the cooling pipe 38 is arranged around the bottom of the molding side plate 32 and the molding base plate 31. One end of the cooling pipe 38 passes through the molding base 3 and extends to the outside of the positioning base 1.

[0042] In this embodiment, the pressure relief strip 37 can drive the molding base 3 and the molding top seat 4 to slowly descend into the positioning base 1, avoiding rigid impact on molding and improving service life. The cooling pipe 38 is arranged around the inside of the molding base 3, which can circulate cooling water for rapid cooling molding and improve molding efficiency.

[0043] In a further embodiment of this invention, the bottom of the positioning base 1 is provided with a mounting base 6, the mounting base 6 is provided with an ejector plate 61 inside, the ejector plate 61 is provided with ejector pins 62 evenly distributed on the surface of the ejector plate 61, the ejector pins 62 are provided through the positioning base 1 and the forming base 3, and the outer side of the ejector pins 62 is provided with pressure relief rods 63 evenly distributed.

[0044] In this embodiment, after injection molding is completed, the molded product can be ejected by multiple ejector pins 62.

[0045] In a further embodiment of this invention, an extension rod 8 is connected to the outer side of both the positioning base 1 and the positioning top seat 2, and a moving component is connected to the outer side of the extension rod 8. A detection block 81 is provided on the surface of both the positioning base 1 and the positioning top seat 2, and a detection block is provided on the inner side of the detection block 81.

[0046] In this embodiment, the detection block 81 can detect the ambient temperature inside, thereby adjusting the temperature of the water entering the cooling pipe 38 to ensure the most suitable molding temperature environment is achieved.

[0047] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An injection molding die for automotive taillights, characterized in that, include: The positioning base (1) has a molding base (3) inside. The molding base (3) has a molding bottom plate (31) on its surface. The molding bottom plate (31) has molding side plates (32) on both sides. The molding side plates (32) and the molding bottom plate (31) are connected by a connecting bent plate (33). The molding side plates (32) are fixedly provided with a locking bottom plate (35). The molding base (3) has pressure-relieving strips (37) and cooling pipes (38) evenly arranged inside and extending to the bottom of the molding base (3). The positioning top seat (2) has a forming top seat (4) inside. The forming top seat (4) has a protruding connecting block (42) and is movably connected to the forming bottom plate (31). The protruding connecting block (42) has a recessed connecting groove (43) on both sides. The surface of the recessed connecting groove (43) is fixedly provided with a pressing top plate (44). The pressing top plate (44) and the locking bottom plate (35) are arranged in the same vertical direction. A limiting plate (5) is disposed between the forming base (3) and the forming top seat (4). A slot (51) is provided through the inside of the limiting plate (5). The pressing top plate (44) passes through the slot (51) and is movably connected to the locking bottom plate (35). Stripes and protrusions are uniformly provided on the surface of the limiting plate (5).

2. The automotive taillight injection molding die according to claim 1, characterized in that, The positioning base (1) has guide posts (11) evenly distributed on its surface, and the positioning top seat (2) has a guide groove inside, with the guide posts (11) movably disposed inside the guide groove.

3. The automotive taillight injection molding die according to claim 1, characterized in that, The top of the positioning top seat (2) is provided with a mounting top seat (7), and the mounting top seat (7) is provided with an injection port (71) through it. The bottom of the injection port (71) is connected to a conveying pipe (21) and is located inside the positioning top seat (2). The outside of the conveying pipe (21) is connected to a side pipe, and both the surface of the conveying pipe (21) and the side pipe are provided with regulating valves (22). The bottom of both the conveying pipe (21) and the side pipe is connected to an injection pipe (211).

4. The automotive taillight injection molding die according to claim 1, characterized in that, The forming base plate (31) is provided with positioning blocks (34) on both the front and rear sides. The positioning blocks (34) are arranged in two sets and symmetrically. The surfaces of the two sets of positioning blocks (34) are respectively provided with a first protrusion and a first groove. The forming side plate (32) and the connecting bending plate (33) are both set to be arc-shaped. A supporting side plate (36) is fixedly provided on the outer side of the top end of the forming side plate (32).

5. The automotive taillight injection molding die according to claim 4, characterized in that, The number of the limiting discs (5) is set to two, and a limiting locking block (52) is provided between the two limiting discs (5). The limiting locking blocks (52) are set in two groups and arranged symmetrically. The bottom surfaces of the two groups of limiting locking blocks (52) are respectively provided with a second protrusion and a second groove. The second protrusion and the second groove are respectively matched with the first protrusion and the first groove. The end of the limiting disc (5) is provided with a hanging ring groove, which is movably set on the top surface of the support side plate (36).

6. The automotive taillight injection molding die according to claim 3, characterized in that, The top surface of the molding top seat (4) is provided with a feed port (41), which is matched with the injection tube (211). The locking bottom plate (35), the pressing top plate (44) and the locking groove (51) are all set in pairs and symmetrically arranged.

7. The automotive taillight injection molding die according to claim 1, characterized in that, The positioning base (1) is provided with an inclined insert rod inside. The pressure relief strip (37) is movably disposed inside the inclined insert rod. The cooling pipe (38) is arranged around the bottom of the molding side plate (32) and the molding base plate (31). One end of the cooling pipe (38) passes through the molding base (3) and extends to the outside of the positioning base (1).

8. The injection molding die for an automobile taillight according to claim 1, characterized in that, The positioning base (1) has an installation base (6) at its bottom. The installation base (6) has an ejector plate (61) inside. The ejector plate (61) has ejector pins (62) evenly distributed on its surface. The ejector pins (62) penetrate the positioning base (1) and the forming base (3). The ejector pins (62) have pressure relief rods (63) evenly distributed on their outer sides.

9. The injection molding die for an automobile taillight according to claim 1, characterized in that, Both the positioning base (1) and the positioning top seat (2) are connected to an extension rod (8) on their outer sides. A moving component is connected to the outer side of the extension rod (8). Both the positioning base (1) and the positioning top seat (2) are provided with a detection block (81) on their surface. A detection block is provided on the inner side of the detection block (81).

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