An automobile lamp aperture forming die

Abstract

The application relates to an automobile lamp ring forming die and relates to the technical field of automobile lamp ring forming dies.The automobile lamp ring forming die comprises a top die plate, a bottom die base, a feeding port and a supporting assembly, the top die plate is installed above the bottom die base, the feeding port is installed at the center of the upper end surface of the bottom die base, the supporting assembly is arranged between the top die plate and the bottom die base, the top die plate, the bottom die base and the supporting assembly are limitingly connected through limiting columns, the supporting assembly supports a supporting mechanism, the supporting end of the supporting mechanism is connected with a die body, and the inner cavity of the die body is provided with a die core body.The device structure improves forming precision, meets the forming requirements of complex shapes and high precision, improves production efficiency, shortens the forming cycle, improves product consistency, ensures the consistency between the cavities through precise guidance and uniform die closing pressure, reduces the manufacturing cost, prolongs the service life of the die, and is convenient for die clamping and die forming.

Description

Technical Field

[0001] This application relates to the field of automotive headlight ring forming mold technology, and in particular to an automotive headlight ring forming mold. Background Technology

[0002] Automotive light bulb ring molding molds are high-precision injection molds specifically designed for manufacturing optical components in automotive lights. Their core function is to mold parts with specific optical properties through precision machining processes, ensuring that the light spot distribution, light transmittance, and appearance quality of the light bulb meet design requirements. Automotive light bulb ring molding molds are complex tools that integrate high-precision machining, multi-material injection molding, and optical design. Their core technology lies in meeting the stringent requirements of automotive lights in terms of lighting performance, appearance quality, and mass production through precise structure, material optimization, and process control.

[0003] In the prior art, relevant technology can be found in Chinese Patent Application No. CN202420316455.3, which discloses a mold for a plastic light guide ring for automotive lights. The mold includes an upper template, an upper mold base below the upper template, and injection port components inside the upper template and the upper mold base. A lower mold base is pressed under the upper mold base, and upper mold core groove and lower mold core groove are respectively provided inside the upper mold base and the lower mold base. A support block, a lower template, and a top plate are provided below the lower mold base, and a support column is provided above the lower template. Demolding ejector columns are provided at the four corners of the top plate, and a first straight ejector rod, a second straight ejector rod, and a main ejector rod are provided in the middle of the top plate. The mold has two molding cavities inside, which simultaneously produce matching light guide rings, avoiding the need for matching after production, increasing work efficiency, and reducing workload.

[0004] In the process of realizing this application, the inventors discovered the following problems with the prior art: The above-mentioned device solves the problem that "usually, molds are used for injection molding in a single process, and then matched for use after injection molding, which results in low production efficiency and a large workload." However, the existing single-cavity molds have low production efficiency and are difficult to meet the needs of mass production; in addition, multi-cavity molds have complex structures, high manufacturing costs, and it is difficult to ensure the consistency between cavities; and hot runner molds have high requirements for temperature control and are prone to defects such as weld lines and shrinkage marks, which affect the surface quality of the product. Summary of the Invention

[0006] The purpose of this application is to provide a mold for forming automotive headlight rings.

[0007] The technical solution for an automotive headlight ring forming mold provided in this application is as follows:

[0008] A mold for forming automotive headlight rings includes a top template, a bottom mold base, a feed inlet, a support assembly, a limiting post, a support mechanism, a mold body, and a mold core body. The top template is installed above the bottom mold base, and a feed inlet is installed at the center of the upper surface of the bottom mold base. A support assembly is provided between the top template and the bottom mold base, and the top template, the bottom mold base, and the support assembly are connected by a limiting post. The support assembly supports the support mechanism, and the support end of the support mechanism is connected to the mold body. A mold core body is provided in the inner cavity of the mold body.

[0009] The support mechanism includes an ejector base and a support rod. The support rod is slidably connected to a groove carved into the upper surface of the ejector base, and the support rod is connected to the mold core body through a limiting plate. The mold body is composed of an upper mold and a lower mold, and the mold core body is composed of an upper mold core and a lower mold core. Through grooves are carved into the inner sides of the upper mold and the lower mold in the mold body, and heat dissipation water pipes are installed on the inner sides of the through grooves.

[0010] By adopting the above technical solution, the device of this application performs automotive headlight ring forming work through a top template, bottom mold base, support components, limiting columns, support mechanism, mold body, and mold core body. In use, the top template, bottom mold base, support components, limiting columns, support mechanism, mold body, and mold core body are closed under the drive of the mold closing mechanism. Molten plastic is injected into the cavity through the inlet, and injection molding material is filled in the gap between the mold body and the mold core body. After cooling and solidification, the mold is opened, and the corresponding product is finally taken out. The structure of the device of this application improves the molding accuracy, meets the molding requirements of complex shapes and high precision, improves production efficiency, shortens the molding cycle, and improves product consistency. Through precision guidance and uniform mold closing pressure, the consistency between cavities is ensured. Moreover, the above structure reduces manufacturing costs and extends the service life of the mold. Furthermore, the ejector base, support rod, and limiting plate in the support mechanism support the mold body and mold core body, thereby facilitating mold fastening and mold forming.

[0011] The support assembly includes a support side column and a first limiting rectangular block. The upper end face of the bottom mold base is symmetrically provided with the support side column, and the side of the support side column away from the bottom mold base is provided with the first limiting rectangular block. The upper end face of the first limiting rectangular block is provided with a second limiting rectangular block, and the upper end face of the second limiting rectangular block is attached to the bottom end face of the top mold through a first fixing plate.

[0012] By adopting the above technical solution, the limiting column, the supporting mechanism, the mold body and the mold core body are supported, limited and fixed by the supporting side column, the first limiting rectangular block, the second limiting rectangular block and the first fixing plate in the supporting component, thereby ensuring that the top mold plate, the bottom mold base, the supporting component, the limiting column, the supporting mechanism, the mold body and the mold core body perform the automotive headlight ring forming work. The top mold plate, the bottom mold base, the supporting component, the limiting column, the supporting mechanism, the mold body and the mold core body are tightly closed under the drive of the mold closing mechanism. Then, the molten plastic is injected into the cavity through the inlet, and the injection molding material is filled in the gap between the mold body and the mold core body, which is conducive to completing the injection molding work.

[0013] The bottom end face of the first limiting rectangular block is connected to a second fixing plate via a reset telescopic rod, and a third fixing plate is installed below the second fixing plate. A guide post is provided between the first limiting rectangular block and the second limiting rectangular block, and a guide sleeve is provided on the contact surface between the first limiting rectangular block, the second limiting rectangular block and the guide post.

[0014] By adopting the above technical solution, the gaps and precision of the top template, bottom mold base, support assembly, limit post, support mechanism, mold body and mold core body are improved during the opening and closing process through the reset telescopic rod, second fixed plate, third fixed plate, guide post and guide sleeve in the support assembly, thereby ensuring the molding accuracy of the mold and improving product consistency. The consistency between cavities is ensured by precision guidance and uniform mold closing pressure.

[0015] The limiting posts are provided in several groups, and the top template, bottom mold base, supporting side posts, first limiting rectangular block, second limiting rectangular block, first fixing plate, second fixing plate, third fixing plate, ejector base, upper mold, lower mold, upper mold core and lower mold core are connected by limiting posts.

[0016] By adopting the above technical solution, several sets of limiting columns are installed, which facilitates the fixing of the top template, bottom mold base, supporting side columns, first limiting rectangular block, second limiting rectangular block, first fixing plate, second fixing plate, third fixing plate, ejector base, upper mold, lower mold, upper mold core and lower mold core. At the same time, it also helps to improve the guiding precision, which facilitates uniform mold closing pressure, ensures the consistency between cavities, and facilitates material forming.

[0017] Both the upper and lower mold cores are made of SKD61 mold steel, and the SKD61 mold steel has a heat treatment hardness of HRC52-54. The guide pillars and guide sleeves are made of GCr15 bearing steel and are chrome-plated. The support rods in the support mechanism are made of H13 hot work mold steel, and the H13 hot work mold steel has a heat treatment hardness of HRC48-50.

[0018] By adopting the above technical solution, the upper and lower mold cores are made of SKD61 mold steel, the guide pillars and guide sleeves are made of GCr15 bearing steel, and the support rods in the support mechanism are made of H13 hot work mold steel. The use of SKD61 mold steel, GCr15 bearing steel and H13 hot work mold steel materials extends the service life of the mold.

[0019] The inner side of the feed inlet is provided with a material passage groove, which extends through the top template, the first fixing plate and the second limiting rectangular block to the core body of the mold body. The upper end face of the second limiting rectangular block is provided with a flow channel. The output end and input end of the heat dissipation water pipe extend through to the side end faces of the first limiting rectangular block and the second limiting rectangular block.

[0020] By adopting the above technical solution, a material passage groove is provided on the inner side of the feed inlet, and a flow channel is provided on the upper end face of the second limiting rectangular block, so that the molten raw material can flow evenly and stably through the feed inlet, material passage groove and flow channel to the gap between the mold body and the mold core body, and then the mold body and the mold core body are used to form the product.

[0021] The first and second limiting rectangular blocks are provided with fastening blocks on their side end faces, and there are four sets of fastening blocks. Each fastening block consists of an upper block and a lower block. Limiting rods are respectively provided through the upper and lower molds in the mold body and the upper and lower mold cores in the mold core body.

[0022] By adopting the above technical solution, the side end faces of the first limiting rectangular block and the second limiting rectangular block are provided with fastening blocks, and four sets of fastening blocks are provided, so that when the first limiting rectangular block and the second limiting rectangular block are opened and closed, the fastening blocks limit the first limiting rectangular block and the second limiting rectangular block. In addition, the upper mold and the lower mold in the mold body and the upper mold core and the lower mold core in the mold core body are respectively provided with limiting rods, so as to facilitate mold forming through the mold body and the mold core body.

[0023] The mold body has two sets of mold core bodies, and the mold core bodies in the inner cavity of the mold body are symmetrically arranged. The mold body is symmetrically arranged through the heat dissipation water pipes installed in the through slots. The top template, bottom mold base, support side column, first limiting rectangular block, second limiting rectangular block, first fixing plate, second fixing plate, third fixing plate, ejection base, limiting plate, upper mold, lower mold, upper mold core and lower mold core are all equipped with several sets of limiting holes through the upper end face.

[0024] By adopting the above technical solution, the mold core body in the mold body is provided with two sets, and the mold core bodies in the inner cavity of the mold body are symmetrically arranged, which facilitates the production of automotive headlight rings, improves production efficiency, shortens the molding cycle, and also improves product consistency, ensures consistency between cavities, and improves the precision of guidance and the stability of the device by using limiting holes.

[0025] The gaps between the upper and lower molds in the mold body and the upper and lower mold cores in the mold core body are filled with injection molding material.

[0026] By adopting the above technical solution, molten raw materials are poured into the gaps between the upper and lower molds in the mold body and the upper and lower mold cores in the mold core body, thereby finally forming the car headlight ring to obtain the product.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The device of this application performs automotive headlight ring forming work through a top mold plate, bottom mold base, support components, limiting columns, support mechanism, mold body, and mold core body. In use, the top mold plate, bottom mold base, support components, limiting columns, support mechanism, mold body, and mold core body are closed under the drive of the mold closing mechanism. Molten plastic is injected into the cavity through the inlet. The injection material is filled in the gap between the mold body and the mold core body. After cooling and solidification, the mold is opened, and the corresponding product is finally taken out. The device structure of this application improves the molding accuracy, meets the molding requirements of complex shapes and high precision, improves production efficiency, shortens the molding cycle, and improves product consistency. Through precision guidance and uniform mold closing pressure, the consistency between cavities is ensured. Moreover, the above structure reduces manufacturing costs and extends the service life of the mold. Furthermore, the ejector base, support rod, and limiting plate in the support mechanism support the mold body and mold core body, thereby facilitating mold clamping and mold forming.

[0029] 2. The support components, including the side pillars, first limiting rectangular blocks, second limiting rectangular blocks, and first fixing plate, support and limit the limiting pillars, support mechanism, mold body, and mold core body, thereby ensuring that the top mold plate, bottom mold base, support components, limiting pillars, support mechanism, mold body, and mold core body can perform automotive headlight ring forming. The top mold plate, bottom mold base, support components, limiting pillars, support mechanism, mold body, and mold core body are tightly closed under the drive of the mold closing mechanism. Then, molten plastic is injected into the cavity through the inlet, and the injection material is filled in the gap between the mold body and the mold core body, which is conducive to completing the injection molding work. The reset telescopic rod, second fixing plate, third fixing plate, guide pillar, and guide sleeve in the support components improve the gap and precision of the top mold plate, bottom mold base, support components, limiting pillars, support mechanism, mold body, and mold core body during the opening and closing process, thereby ensuring the molding accuracy and improving product consistency. Precision guidance and uniform mold closing pressure ensure the consistency between cavities.

[0030] 3. Several sets of limiting posts are installed to facilitate the fixing of the top template, bottom mold base, supporting side posts, first limiting rectangular block, second limiting rectangular block, first fixing plate, second fixing plate, third fixing plate, ejector base, upper mold, lower mold, upper mold core and lower mold core. It also helps to improve guiding precision, facilitate uniform mold closing pressure, ensure consistency between cavities, and facilitate material forming. The upper mold core and lower mold core are both made of SKD61 mold steel, the guide posts and guide sleeves are both made of GCr15 bearing steel, and the support rod in the support mechanism is made of H13 hot work mold steel. The use of SKD61 mold steel, GCr15 bearing steel and H13 hot work mold steel materials extends the service life of the mold. A material passage groove is provided on the inner side of the feed port, and a flow channel is provided on the upper end face of the second limiting rectangular block. This facilitates the uniform and stable flow of molten raw materials through the feed port, material passage groove and flow channel to the gap between the mold body and the mold core body, and then the mold body and the mold core body are used to form the product.

[0031] 4. The first and second limiting rectangular blocks are provided with fastening blocks on their side end faces, and there are four sets of fastening blocks. This allows the fastening blocks to limit the opening and closing of the first and second limiting rectangular blocks. Limiting rods are provided through the upper and lower molds in the mold body and the upper and lower mold cores in the mold core body, respectively, facilitating mold forming through the mold body and mold core body. Two sets of mold cores are provided in the mold body, and the mold cores within the mold body are symmetrically arranged, facilitating the production of automotive headlight rings, improving production efficiency, shortening the molding cycle, and enhancing product consistency. This ensures consistency between cavities. The use of limiting holes improves the precision of guidance and the stability of the device. Molten raw materials are poured into the gaps between the upper and lower molds in the mold body and the upper and lower mold cores in the mold core body, ultimately forming the automotive headlight ring to obtain the product. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the overall front view of an embodiment of this application;

[0034] Figure 3 This is a schematic side view of the overall structure of an embodiment of this application;

[0035] Figure 4 This is a three-dimensional structural diagram of the mold body according to an embodiment of this application;

[0036] Figure 5 This is a front view structural diagram of the mold body according to an embodiment of this application;

[0037] Figure 6 This is a three-dimensional structural diagram of the support mechanism according to an embodiment of this application;

[0038] Figure 7 This is a three-dimensional structural diagram of the mold body according to an embodiment of this application;

[0039] Figure 8 This is a side view structural diagram of the mold body according to an embodiment of this application;

[0040] Figure 9 This is a three-dimensional structural diagram of the heat dissipation water pipe according to an embodiment of this application;

[0041] Figure 10 This is a schematic diagram of the three-dimensional structure of the mold core body according to an embodiment of this application;

[0042] Figure 11 This is a schematic diagram of the overall disassembly structure of an embodiment of this application;

[0043] Explanation of reference numerals in the attached drawings: 1. Top mold plate; 2. Bottom mold base; 3. Inlet; 31. Material passage; 4. Support assembly; 41. Support side pillar; 42. First limiting rectangular block; 43. Second limiting rectangular block; 44. First fixing plate; 45. Reset telescopic rod; 46. Second fixing plate; 47. Third fixing plate; 48. Guide pillar; 49. Guide sleeve; 5. Limiting pillar; 6. Support mechanism; 61. Ejection base; 62. Support rod; 63. Limiting plate; 7. Mold body; 71. Upper mold; 72. Lower mold; 8. Mold core body; 81. Upper mold core; 82. Lower mold core; 9. Cooling water pipe; 10. Runner; 11. Fastening block. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1 - Appendix Figure 11 This application will be described in further detail below.

[0045] Example: A mold for forming automotive headlight bead rings includes a top mold plate 1, a bottom mold base 2, a feed inlet 3, a support assembly 4, a limiting post 5, a support mechanism 6, a mold body 7, and a mold core body 8. The device of this application performs the forming of automotive headlight bead rings through the top mold plate 1, bottom mold base 2, support assembly 4, limiting post 5, support mechanism 6, mold body 7, and mold core body 8. The top mold plate 1 is installed above the bottom mold base 2, and the feed inlet 3 is installed at the center of the upper surface of the bottom mold base 2. Molten plastic is injected into the cavity through the feed inlet 3. A support assembly 4 is provided between the top mold plate 1 and the bottom mold base 2. The top mold plate 1, the bottom mold base 2, and the support assembly 4 are connected by limiting posts 5. The support assembly 4 supports a support mechanism 6, and the support end of the support mechanism 6 is connected to the mold body 7. A mold core body 8 is provided in the inner cavity of the mold body 7. Injection molding material is filled into the gap between the mold body 7 and the mold core body 8. After cooling and solidification, the mold is opened, and the corresponding product is finally taken out. In use, the top mold plate 1, bottom mold base 2, support assembly 4, limiting posts 5, and support mechanism 6 are connected. The mold body 7 and the mold core body 8 are closed under the drive of the mold closing mechanism. The support mechanism 6 includes an ejector base 61 and a support rod 62. The support rod 62 is slidably connected to a groove carved in the upper end face of the ejector base 61, and the support rod 62 passes through the limiting plate 63 and is limited and connected to the mold core body 8. The ejector base 61, the support rod 62 and the limiting plate 63 in the support mechanism 6 support the mold body 7 and the mold core body 8, thereby facilitating mold closing and mold forming. The mold body 7 consists of an upper mold 71 and a lower mold 72. The mold body 7 consists of two parts: an upper mold core 81 and a lower mold core 82. The upper mold 71 and the lower mold 72 in the mold body 7 have through grooves on their inner sides, and heat dissipation water pipes 9 are installed on the inner side of the through grooves. The device structure of this application improves the molding accuracy, meets the molding requirements of complex shapes and high precision, improves production efficiency, shortens the molding cycle, and improves product consistency. Through precision guidance and uniform mold closing pressure, the consistency between cavities is ensured. Moreover, the above structure reduces manufacturing costs and extends the service life of the mold.

[0046] The support assembly 4 includes a support side post 41 and a first limiting rectangular block 42. The support side post 41 is symmetrically arranged on the upper end face of the bottom mold base 2, and the first limiting rectangular block 42 is arranged on the side of the support side post 41 away from the bottom mold base 2. A second limiting rectangular block 43 is arranged on the upper end face of the first limiting rectangular block 42, and the upper end face of the second limiting rectangular block 43 is attached to the bottom end face of the top mold plate 1 through a first fixing plate 44. The support side post 41, the first limiting rectangular block 42, the second limiting rectangular block 43 and the first fixing plate 44 in the support assembly 4 provide support, limiting and fixing for the limiting post 5, the support mechanism 6, the mold body 7 and the mold core body 8, thereby ensuring that the top mold plate 1, the bottom mold base 2, the support assembly 4, the limiting post 5, the support mechanism 6, the mold body 7 and the mold core body 8 can perform the automotive headlight ring forming work, which is beneficial to After injection molding is completed, the bottom end face of the first limiting rectangular block 42 is connected to the second fixing plate 46 through the reset telescopic rod 45, and a third fixing plate 47 is installed below the second fixing plate 46. A guide post 48 is provided between the first limiting rectangular block 42 and the second limiting rectangular block 43, and a guide sleeve 49 is provided on the contact surface between the first limiting rectangular block 42, the second limiting rectangular block 43 and the guide post 48. The reset telescopic rod 45, the second fixing plate 46, the third fixing plate 47, the guide post 48 and the guide sleeve 49 in the support assembly 4 improve the gap and precision of the top mold plate 1, the bottom mold base 2, the support assembly 4, the limiting post 5, the support mechanism 6, the mold body 7 and the mold core body 8 during the opening and closing process, thereby ensuring the molding precision of the mold and improving the consistency of the product. The consistency between the cavities is ensured by precision guidance and uniform mold closing pressure.

[0047] The limiting posts 5 are provided in several sets, which facilitates the fixing of the top template 1, bottom mold base 2, supporting side posts 41, first limiting rectangular block 42, second limiting rectangular block 43, first fixing plate 44, second fixing plate 46, third fixing plate 47, ejector base 61, upper mold 71, lower mold 72, upper mold core 81 and lower mold core 82, and the top template 1, bottom mold base 2, supporting side posts 41, first limiting rectangular block 42, second limiting rectangular block 43, first fixing plate 44, second fixing plate 46, third fixing plate 47, ejector base 61, upper mold 71, lower mold 72 and upper mold core 82. The upper mold core 81 and the lower mold core 82 are connected by a limiting post 5, which also helps to improve the guiding precision, thereby facilitating uniform mold closing pressure, ensuring consistency between cavities, and facilitating material forming. Both the upper mold core 81 and the lower mold core 82 are made of SKD61 mold steel, and the heat treatment hardness of SKD61 mold steel is HRC52-54. The guide post 48 and the guide sleeve 49 are both made of GCr15 bearing steel, and the surface is chrome-plated. The support rod 62 in the support mechanism 6 is made of H13 hot work mold steel, and the heat treatment hardness of H13 hot work mold steel is HRC48-50, which ultimately extends the service life of the mold.

[0048] A material passage 31 is provided on the inner side of the inlet 3, and the material passage 31 extends through the top template 1, the first fixing plate 44, and the second limiting rectangular block 43 to the core body 8 inside the mold body 7. A flow channel 10 is provided on the upper end face of the second limiting rectangular block 43, so that the molten raw material can flow evenly and stably through the inlet 3, the material passage 31, and the flow channel 10 to the gap between the mold body 7 and the core body 8, and then the mold body 7 and the core body 8 are used to form the product. The output end and input end of the heat dissipation pipe 9 extend through to the side end faces of the first limiting rectangular block 42 and the second limiting rectangular block 43, so that the heat dissipation pipe 9 can facilitate the cooling of the mold body. 7 and the mold core body 8 dissipate heat to cool the product. The side end faces of the first limiting rectangular block 42 and the second limiting rectangular block 43 are provided with fastening blocks 11, and there are four sets of fastening blocks 11. The fastening blocks 11 are composed of upper blocks and lower blocks, so that when the first limiting rectangular block 42 and the second limiting rectangular block 43 are opened and closed, the fastening blocks 11 limit the first limiting rectangular block 42 and the second limiting rectangular block 43. The upper mold 71 and the lower mold 72 in the mold body 7 and the upper mold core 81 and the lower mold core 82 in the mold core body 8 are respectively provided with limiting rods, so as to facilitate mold forming through the mold body 7 and the mold core body 8.

[0049] The mold body 7 contains two sets of mold core bodies 8, which are symmetrically arranged within the inner cavity of the mold body 7. This facilitates the production of automotive headlight rings, improves production efficiency, shortens the molding cycle, and enhances product consistency, ensuring consistency between cavities. Furthermore, the use of limiting holes improves the precision of guidance and the stability of the device. The mold body 7 is symmetrically arranged with cooling water pipes 9 installed via through slots. The top mold plate 1, bottom mold base 2, supporting side pillars 41, first limiting rectangular block 42, second limiting rectangular block 43, first fixing plate 44, second fixing plate 46, third fixing plate 47, ejector base 61, limiting plate 63, upper mold 71, lower mold 72, upper mold core 81, and lower mold core 82 are all perforated on their upper surfaces. Several sets of limiting holes are provided. The gaps between the upper mold 71 and lower mold 72 in the mold body 7 and the upper mold core 81 and lower mold core 82 in the mold core body 8 are filled with injection molding raw material. Molten raw material is poured into the gaps between the upper mold 71 and lower mold 72 in the mold body 7 and the upper mold core 81 and lower mold core 82 in the mold core body 8, thereby finally forming the car headlight ring to obtain the product. In this embodiment, SKD61 mold steel, GCr15 bearing steel and H13 hot work mold steel are all commercially available equipment known to those skilled in the art. They can be customized or selected according to actual needs. Here we only use them without making any structural or functional improvements, and we will not go into details here.

[0050] The implementation principle of this application embodiment is as follows: The device of this application performs automotive headlight ring forming work through a top mold plate 1, a bottom mold base 2, a support component 4, a limiting post 5, a support mechanism 6, a mold body 7, and a mold core body 8. In use, the top mold plate 1, the bottom mold base 2, the support component 4, the limiting post 5, the support mechanism 6, the mold body 7, and the mold core body 8 are closed under the drive of the mold closing mechanism. Molten plastic is injected into the cavity through the feed port 3, and the injection molding material is filled in the gap between the mold body 7 and the mold core body 8. After cooling and solidification, the mold is opened, and the corresponding product is finally taken out. The ejector base 61, the support rod 62, and the limiting plate 63 in the support mechanism 6 are used to form the product. The mold body 7 and mold core body 8 are supported to facilitate mold engagement and forming. The support assembly 4, consisting of support side pillars 41, first limiting rectangular blocks 42, second limiting rectangular blocks 43, first fixing plate 44, reset telescopic rod 45, second fixing plate 46, third fixing plate 47, guide pillars 48, and guide sleeves 49, supports and limits the limiting pillars 5, support mechanism 6, mold body 7, and mold core body 8, ensuring that the top mold plate 1, bottom mold base 2, support assembly 4, limiting pillars 5, support mechanism 6, mold body 7, and mold core body 8 can perform automotive headlight ring forming. Several sets of limiting pillars 5 are installed to facilitate... The mold consists of a top mold plate 1, a bottom mold base 2, supporting side pillars 41, a first limiting rectangular block 42, a second limiting rectangular block 43, a first fixing plate 44, a second fixing plate 46, a third fixing plate 47, an ejector base 61, an upper mold 71, a lower mold 72, an upper mold core 81, and a lower mold core 82. This design improves guiding precision, facilitates uniform mold closing pressure, ensures consistency between cavities, and facilitates material forming. The use of SKD61 mold steel, GCr15 bearing steel, and H13 hot work mold steel extends the mold's service life. Furthermore, the molten material flows evenly and stably through the feed inlet 3, the material channel 31, and the runner 10. The product is formed by using the mold body 7 and the mold core body 8 to fill the gap between them. The mold body 7 has two sets of mold core bodies 8, and the mold core bodies 8 inside the mold body 7 are symmetrically arranged. This facilitates the production of automotive headlight rings, improves production efficiency, shortens the molding cycle, and also improves product consistency, ensuring consistency between cavities. Furthermore, the use of limiting holes improves the precision of guidance and the stability of the device. The device structure of this application improves molding accuracy, meets the molding requirements of complex shapes and high precision, and reduces manufacturing costs and extends the service life of the mold.

[0051] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mold for forming automotive headlight bead rings, comprising a top mold plate (1), a bottom mold base (2), a feed inlet (3), a support assembly (4), a limiting post (5), a support mechanism (6), a mold body (7), and a mold core body (8), characterized in that: The top template (1) is installed above the bottom mold base (2), and a feed port (3) is installed at the center of the upper surface of the bottom mold base (2). A support component (4) is provided between the top template (1) and the bottom mold base (2), and the top template (1), the bottom mold base (2) and the support component (4) are connected by a limiting post (5). The support component (4) supports a support mechanism (6), and the support end of the support mechanism (6) is connected to the mold body (7). The inner cavity of the mold body (7) is provided with a mold core body (8). The support mechanism (6) includes an ejector base (61) and a support rod (62). The support rod (62) is slidably connected to a groove dug on the upper surface of the ejector base (61). The support rod (62) is connected to the mold core body (8) through the limiting plate (63). The mold body (7) is composed of an upper mold (71) and a lower mold (72). The mold core body (8) is composed of an upper mold core (81) and a lower mold core (82). The upper mold (71) and the lower mold (72) in the mold body (7) have through grooves dug on their inner sides, and a heat dissipation water pipe (9) is installed on the inner side of the through groove.

2. The automotive headlight ring forming mold according to claim 1, characterized in that: The support assembly (4) includes a support side column (41) and a first limiting rectangular block (42). The upper end face of the bottom mold base (2) is symmetrically provided with the support side column (41), and the side of the support side column (41) away from the bottom mold base (2) is provided with the first limiting rectangular block (42). The upper end face of the first limiting rectangular block (42) is provided with the second limiting rectangular block (43), and the upper end face of the second limiting rectangular block (43) is attached to the bottom end face of the top mold plate (1) through the first fixing plate (44).

3. The automotive headlight ring forming mold according to claim 2, characterized in that: The bottom end face of the first limiting rectangular block (42) is connected to the second fixing plate (46) via the reset telescopic rod (45), and a third fixing plate (47) is installed below the second fixing plate (46). A guide post (48) is provided between the first limiting rectangular block (42) and the second limiting rectangular block (43), and a guide sleeve (49) is provided on the contact surface between the first limiting rectangular block (42) and the second limiting rectangular block (43) and the guide post (48).

4. The automotive headlight ring forming mold according to claim 2, characterized in that: The limiting posts (5) are provided in several groups, and the top template (1), bottom mold base (2), support side post (41), first limiting rectangular block (42), second limiting rectangular block (43), first fixing plate (44), second fixing plate (46), third fixing plate (47), ejection base (61), upper mold (71), lower mold (72), upper mold core (81) and lower mold core (82) are connected by limiting posts (5).

5. The automotive headlight ring forming mold according to claim 3, characterized in that: The upper mold core (81) and lower mold core (82) are both made of SKD61 mold steel, and the heat treatment hardness of SKD61 mold steel is HRC52-54. The guide post (48) and guide sleeve (49) are both made of GCr15 bearing steel and are chrome-plated. The support rod (62) in the support mechanism (6) is made of H13 hot work mold steel, and the heat treatment hardness of H13 hot work mold steel is HRC48-50.

6. The automotive headlight ring forming mold according to claim 1, characterized in that: The feed inlet (3) is provided with a feed channel (31) on its inner side. The feed channel (31) passes through the top template (1), the first fixing plate (44) and the second limiting rectangular block (43) in sequence and extends to the mold core body (8) in the inner cavity of the mold body (7). The upper end face of the second limiting rectangular block (43) is provided with a flow channel (10). The output end and input end of the heat dissipation water pipe (9) extend through to the side end faces of the first limiting rectangular block (42) and the second limiting rectangular block (43).

7. The automotive headlight ring forming mold according to claim 2, characterized in that: The first limiting rectangular block (42) and the second limiting rectangular block (43) are provided with a fastening block (11) on their side end faces, and there are four sets of fastening blocks (11). The fastening block (11) is composed of an upper block and a lower block. The upper mold (71) and the lower mold (72) in the mold body (7) and the upper mold core (81) and the lower mold core (82) in the mold core body (8) are respectively provided with a limiting rod through the upper and lower end faces.

8. The automotive headlight ring forming mold according to claim 1, characterized in that: The mold body (7) has two sets of mold core bodies (8), and the mold core bodies (8) in the inner cavity of the mold body (7) are symmetrically arranged. The mold body (7) is symmetrically arranged through the heat dissipation water pipes (9) installed in the through slots. The top template (1), bottom mold base (2), support side column (41), first limiting rectangular block (42), second limiting rectangular block (43), first fixing plate (44), second fixing plate (46), third fixing plate (47), ejection base (61), limiting plate (63), upper mold (71), lower mold (72), upper mold core (81) and lower mold core (82) are all equipped with several sets of limiting holes through the upper end face.

9. The automotive headlight ring forming mold according to claim 1, characterized in that: The gaps between the upper mold (71) and lower mold (72) in the mold body (7) and the upper mold core (81) and lower mold core (82) in the mold core body (8) are filled with injection molding material.

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