Injection molding equipment for automobile lamp holder connecting piece and processing technology thereof

Abstract

The application discloses a kind of injection molding equipment and its processing technology for automobile lamp holder connecting piece, specifically related to injection molding equipment technical field, including equipment body, movable die holder, static die holder, the inside of movable die holder is provided with movable die;The inside of static die holder is provided with static die, and static die inside is provided with separation component;Movable die and static die can be mutually matched to form injection molding cavity, and separation component can separate injection molding cavity into special-shaped cavity and contour cavity;Static die holder is provided with exhaust component inside, and exhaust component can form negative pressure inside special-shaped cavity, the injection molding melt is injected into special-shaped cavity and contour cavity respectively in the application, so that the injection molding melt can accurately flow into the region that shape is more complex, and when injection molding melt fills special-shaped cavity, the pressure of special-shaped cavity is maintained and is supplemented, and by discharging gas inside special-shaped cavity and contour cavity when injection molding, the flow resistance of injection molding melt is reduced, so as to prevent the problems of bubble, burning, injection molding not full caused by air retention.

Description

Technical Field

[0001] This invention relates to the field of injection molding equipment technology, and more specifically, to an injection molding equipment for automotive lamp holder connectors and its processing technology. Background Technology

[0002] Automotive headlight connectors are key components in automotive headlight systems that enable mechanical fixation, electrical connection, or optical transmission. They are mainly produced by injection molding, where engineering plastics are injected into precision molds using injection molding equipment. By controlling process parameters, the products are ensured to have high structural strength, precise dimensions, and good environmental resistance, meeting the long-term use requirements of headlights in complex environments.

[0003] Chinese Patent Application No. 202310288131.3 discloses an integrated injection molding equipment for automotive lamp holders, including a frame and a material feeding assembly. The material feeding assembly is mounted above the frame and includes at least a linear module one, a linear module two, a linear module three, and an auxiliary demolding assembly. The linear modules one, two, and three together constitute a three-axis motion module. The auxiliary demolding assembly is fixed to the output end of the three-axis motion module. This invention avoids the problem of products sticking to the core and being difficult to demold by applying a release agent to the core and the separation plate through the auxiliary demolding assembly.

[0004] However, in the existing technology, due to the complex internal shape of the connector, with many grooves and rounded corners, dead corners are easily generated during the flow of the injection molten material. If the injection molten material fails to completely fill the mold cavity, it will lead to incomplete products. Furthermore, if the gas inside the cavity cannot be discharged in time during the injection process, it will easily cause blistering on the product surface, internal air bubbles, and incomplete injection. Therefore, this invention proposes an injection molding equipment and processing technology for automotive lamp holder connectors to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide an injection molding equipment and processing technology for automotive lamp holder connectors to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an injection molding equipment for automotive lamp holder connectors, comprising: an equipment body, a moving mold base, and a stationary mold base. The equipment body is provided with a moving fixed plate and a stationary fixed plate. The moving mold base is disposed on the moving fixed plate, and a moving mold is disposed inside the moving mold base. The stationary mold base is disposed on the stationary fixed plate, and a stationary mold is disposed inside the stationary mold base. A partition component is disposed inside the stationary mold. The moving mold and the stationary mold can cooperate to form an injection cavity. The partition component can divide the injection cavity into a shaped cavity and a contour cavity. A venting component is disposed inside the stationary mold base. When the partition component divides the injection cavity into the shaped cavity and the contour cavity, the shaped cavity is smaller than the contour cavity, and the venting component can create a negative pressure inside the shaped cavity.

[0007] Preferably, the separating component includes a separating plate disposed inside the stationary mold, the separating plate having a separating groove inside, a core being disposed inside the moving mold, the inner wall of the separating groove being able to cooperate with the outer wall of the core, and a support block being fixedly connected inside the stationary mold, the support block matching the separating groove.

[0008] Preferably, the venting assembly includes a piston cylinder disposed inside the stationary mold, one end of the piston cylinder having a first through hole, and one end of the stationary mold base being fixedly connected to a buffer cavity, the first through hole being connected to the buffer cavity through a pipe.

[0009] Preferably, the partition plate has a first vent hole on its side wall, a first sealing element is provided inside the first vent hole, a piston rod is fixedly connected to one end of the partition plate, the piston rod and the piston cylinder are slidably connected, and the first vent hole is connected to the inside of the piston cylinder through a pipe.

[0010] Preferably, a piston plate is slidably connected inside the buffer cavity, and an elastic element is provided inside the buffer cavity. One end of the elastic element is fixedly connected to the piston plate, and the other end of the elastic element is fixedly connected to the inner wall of the buffer cavity. A second through hole is opened inside the buffer cavity, and the second through hole communicates with the outside. The piston plate can change the sealing state of the second through hole.

[0011] Preferably, the interior of the stationary mold is provided with a second vent hole, the interior of the second vent hole is provided with a second seal, and the second vent hole is connected to the outside through a pipe.

[0012] Preferably, the partition plate has a first groove inside, the first seal is slidably connected to the first groove, and the first groove is filled with elastic gas. The stationary mold has a second groove inside, the second seal is slidably connected to the second groove, and the second groove is filled with elastic gas.

[0013] Preferably, the support block has a first feed hole inside, the side wall of the stationary mold has a second feed hole, and the stationary mold base has a feed pipe inside. Both the first feed hole and the second feed hole are connected to the feed pipe.

[0014] Preferably, the stationary mold has a third through hole inside, which is connected to an external hydraulic source. The stationary mold base has a clearance hole corresponding to the third through hole inside. The equipment body is equipped with a feeding device, and the output end of the feeding device is connected to the feeding pipe.

[0015] A processing technology for an automotive lamp holder connector includes the following steps:

[0016] S1. The partition plate is moved by an external hydraulic source, so that the partition plate divides the injection cavity into irregular cavity and contour cavity;

[0017] S2. During the movement of the partition plate, the piston rod moves, causing the piston plate inside the buffer chamber to slide and the elastic element to be stretched.

[0018] S3. When the partition plate moves to the designated position, the first seal pops out, allowing the gas inside the irregular cavity to enter the buffer cavity, thus creating negative pressure inside the irregular cavity;

[0019] S4. The injection molding molten material is injected into the irregular cavity and the contour cavity through the feeding device. Since the irregular cavity is smaller than the contour cavity, when the injection molding molten material fills the irregular cavity, the irregular cavity enters the pressure holding state.

[0020] S5. When the injection molten material fills the contour cavity, continue injection molding. The partition plate slides inside the stationary mold under the pressure of the injection molten material until the entire injection cavity is filled and the injection molding is completed.

[0021] The technical effects and advantages of this invention are as follows:

[0022] This invention injects molten injection material into the irregular cavity and the contour cavity respectively, allowing the molten injection material to flow precisely into areas with complex shapes. When the molten injection material fills the irregular cavity, it maintains pressure and compensates for shrinkage, preventing incomplete filling of the mold cavity and thus avoiding product defects. Furthermore, by venting the gas inside the irregular cavity and the contour cavity during injection, and simultaneously creating a negative pressure inside the irregular cavity, the molten injection material can quickly fill the irregular cavity. This also reduces the flow resistance of the molten injection material during the injection process, thereby preventing problems such as air bubbles, scorching, and incomplete injection caused by air retention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the overall structure of the moving mold base and the stationary mold base of the present invention.

[0025] Figure 3 This is an exploded view of the overall structure of the moving and stationary molds of the present invention.

[0026] Figure 4 This is a cross-sectional view of the overall structure of the static mold of the present invention.

[0027] Figure 5 This is a schematic diagram of the overall structure of the connector of the present invention.

[0028] Figure 6 This is a cross-sectional view of the overall structure of the moving mold base and the stationary mold base of the present invention.

[0029] Figure 7 This is a cross-sectional view of the buffer cavity of the present invention.

[0030] The attached figures are labeled as follows: 1. Equipment body; 11. Moving fixed plate; 12. Static fixed plate; 13. Feeding device; 2. Moving mold base; 21. Moving mold; 211. Core; 3. Static mold base; 31. Static mold; 32. Separating assembly; 321. Separating plate; 322. Separating groove; 323. Support block; 324. First vent hole; 325. First sealing element; 326. Piston column; 33. Venting assembly; 331. Piston cylinder; 332. First through hole; 333. Second vent hole; 334. Second sealing element; 34. Buffer chamber; 341. Piston plate; 342. Elastic element; 343. Second through hole; 4. Connecting element. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] In actual production, due to the complex internal shape of the connector, with many grooves and rounded corners, dead corners are easily generated during the flow of the injection molten material. If the injection molten material fails to completely fill the mold cavity, it will lead to incomplete products. This embodiment is invented to solve the above problems.

[0034] Please see Figures 1 to 7As shown, an injection molding device for automotive lamp holder connectors according to an embodiment of the present invention includes a device body 1, a moving mold base 2, and a stationary mold base 3. The device body 1 is provided with a moving fixed plate 11 and a stationary fixed plate 12. The moving mold base 2 is disposed on the moving fixed plate 11, and a moving mold 21 is disposed inside the moving mold base 2. The stationary mold base 3 is disposed on the stationary fixed plate 12, and a stationary mold 31 is disposed inside the stationary mold base 3. A partition component 32 is disposed inside the stationary mold 31. The moving mold 21 and the stationary mold 31 can cooperate with each other to form an injection cavity, which is used for injection molding connectors 4. The partition component 32 can divide the injection cavity into a shaped cavity and a contour cavity. An exhaust component 33 is disposed inside the stationary mold base 3. When the partition component 32 divides the injection cavity into a shaped cavity and a contour cavity, the volume of the shaped cavity is smaller than that of the contour cavity, and the exhaust component 33 can create a negative pressure inside the shaped cavity.

[0035] Please see Figure 2 and Figure 3 As shown, the separating assembly 32 includes a separating plate 321 disposed inside the stationary mold 31. The separating plate 321 is slidably connected to the inner wall of the stationary mold 31. A separating groove 322 is provided inside the separating plate 321. A core 211 is provided inside the moving mold 21. The inner wall of the separating groove 322 can cooperate with the outer wall of the core 211. A support block 323 is fixedly connected inside the stationary mold 31. The support block 323 matches the separating groove 322. The core 211 matches the groove inside the connector 4. Figure 5 As shown, since the internal shape of the groove of the connector 4 is relatively complex, when the partition plate 321 moves to the end near the moving mold 21, an irregular cavity is formed between the inner wall of the partition groove 322, the bottom wall of the core 211 near the support block 323, and the support block 323.

[0036] Please see Figure 4 As shown, the exhaust assembly 33 includes a piston cylinder 331 disposed inside the stationary mold 31. One end of the piston cylinder 331 is provided with a first through hole 332. One end of the stationary mold base 3 is fixedly connected to a buffer cavity 34. The first through hole 332 is connected to the buffer cavity 34 through a pipe.

[0037] Please see Figure 4 As shown, a first vent hole 324 is provided on the side wall of the partition plate 321. A first sealing element 325 is provided inside the first vent hole 324. A piston column 326 is fixedly connected to one end of the partition plate 321. The piston column 326 and the piston cylinder 331 are slidably connected. The first vent hole 324 is connected to the inside of the piston cylinder 331 through a pipe. The first vent hole 324 is located at the top of the irregular cavity. A sealing plate is provided at the end of the first sealing element 325 near the irregular cavity. When the injection molten material fills the irregular cavity, the injection molten material can push the first sealing element 325 to seal the first vent hole 324.

[0038] Please see Figure 7A piston plate 341 is slidably connected inside the buffer cavity 34. An elastic element 342 is provided inside the buffer cavity 34. One end of the elastic element 342 is fixedly connected to the piston plate 341, and the other end of the elastic element 342 is fixedly connected to the inner wall of the buffer cavity 34. A second through hole 343 is provided inside the buffer cavity 34, which is connected to the outside. The piston plate 341 can change the sealing state of the second through hole 343.

[0039] Please see Figure 4 and Figure 7 As shown, the interior of the stationary mold 31 is provided with a second vent 333, and the interior of the second vent 333 is provided with a second seal 334. The second vent 333 is connected to the outside through a pipe. The second vent 333 is located at the top of the injection cavity. One end of the second seal 334 is provided with a sealing plate. When the injection molten material fills the contour cavity, the injection molten material can push the sealing plate to seal the second vent 333.

[0040] Please see Figure 4 As shown, the partition plate 321 has a first groove inside, the first seal 325 is slidably connected to the first groove, and the first groove is filled with elastic gas. The stationary mold 31 has a second groove inside, the second seal 334 is slidably connected to the second groove, and the second groove is filled with elastic gas. When the first seal 325 moves into the first groove, the elastic gas inside it is compressed. When the second seal 334 moves into the second groove, the elastic gas inside it is compressed.

[0041] Please see Figure 6 As shown, the support block 323 has a first feed hole inside, the side wall of the stationary mold 31 has a second feed hole, and the stationary mold base 3 has a feed pipe inside. Both the first and second feed holes are connected to the feed pipe. The stationary mold 31 has a third through hole inside, which is connected to an external hydraulic source. Hydraulic medium is input or discharged through the external hydraulic source into the third through hole, causing the partition plate 321 to move inside the stationary mold 31. The stationary mold base 3 has a clearance hole corresponding to the third through hole inside. An overflow valve is installed at the third through hole, and the overflow valve is connected to an external hydraulic oil tank. Figure 1 As shown, the equipment body 1 is equipped with a feeding device 13, the output end of which is connected to the feeding pipe. Figure 2 and Figure 6 As shown, the internal feed pipe layout of the moving mold base 2 and the stationary mold base 3 can be changed according to actual production needs, and the number of buffer cavities 34 can be increased, thereby increasing the number of moving molds 21 and stationary molds 31, so that multiple connecting parts 4 can be processed at one time. Changing the internal feed pipe layout of the moving mold base 2 and the stationary mold base 3 is existing technology and will not be elaborated on here.

[0042] During use, during injection molding, the moving fixed plate 11 is moved by an external hydraulic source, causing the moving mold 21 and the stationary mold 31 to cooperate to form an injection cavity. In the initial state, the partition plate 321 is located at one end close to the inner wall of the stationary mold 31. At this time, hydraulic medium is input into the third through hole by the hydraulic source, so that the partition plate 321 moves closer to the moving mold 21 inside the stationary mold 31. When the partition plate 321 moves to the end of the partition groove 322 and the core 211 and the support block 323 to form a shaped cavity, the end face of the partition plate 321 and the inner walls of the moving mold 21 and the stationary mold 31 form a contour cavity. The injection molding material is injected into the shaped cavity and the contour cavity through the feeding device 13 via the feeding pipe, the first feeding hole and the second feeding hole respectively. By injecting the injection molding material into the shaped cavity and the contour cavity respectively, the injection molding material can flow accurately into the shape. In more complex areas, to prevent dead zones from easily occurring during the flow of molten injection due to the complex internal shape of the groove in the connector 4, since the volume of the irregular cavity is smaller than that of the contour cavity, when the irregular cavity is full of molten injection, the molten injection cannot enter through the first feed hole. At this time, the irregular cavity enters a pressure holding state. When the molten injection inside the irregular cavity shrinks due to heat loss, the molten injection can be compensated for through the first feed hole. When the molten injection fills the contour cavity, molten injection continues to be injected into the contour cavity, increasing the internal pressure. When the internal pressure of the contour cavity exceeds the rated pressure of the overflow valve, the partition plate 321 moves closer to the inner wall of the stationary mold 31, allowing the molten injection to continue entering the contour cavity and, with the movement of the partition plate 321, wraps around the irregular cavity to complete the injection molding.

[0043] Example 2

[0044] In actual use, it was found that if the gas inside the cavity cannot be discharged in time during the injection molding process, it will prevent the injection molten material from filling the cavity, and will also cause blistering on the product surface, air bubbles inside, and incomplete injection. Further improvements were made based on the above embodiments.

[0045] Based on the above embodiment, in the initial state, the piston plate 341 inside the buffer cavity 34 seals the second through hole 343, the partition plate 321 is located at one end near the inner wall of the stationary mold 31, the first seal 325 cannot pop out due to the obstruction of the support block 323, the elastic gas inside the first slide groove is compressed, the first exhaust hole 324 is sealed, and the second seal 334 does not seal the second exhaust hole 333. During injection molding, hydraulic medium is input into the third through hole through the hydraulic source, thereby causing the partition plate 321 to move closer to the moving mold 21 inside the stationary mold 31, thereby causing the piston rod 326 to slide inside the piston cylinder 331 following the partition plate 321, thereby allowing the gas inside the buffer cavity 34 to enter the piston cylinder 33 through the pipe and the first through hole 332. 1. Inside, the piston plate 341 slides upward inside the buffer cavity 34, stretching the elastic element 342. At this time, the second through hole 343 is still sealed. When the partition plate 321 moves to the partition groove 322, one end of the core 211 and the support block 323 to form a shaped cavity, the first seal 325 is no longer blocked by the support block 323. The elastic gas inside the first slide groove recovers, the first seal 325 pops out, and the first vent hole 324 connects with the shaped cavity, allowing the gas inside the shaped cavity to enter the buffer cavity 34 through the first vent hole 324. The elastic element 342 recovers, and the piston plate 341 slides to the initial position inside the buffer cavity 34, creating a negative pressure inside the shaped cavity, allowing the injection molten material to enter the shaped cavity through the first feed hole. When the molten material enters the contour cavity through the second inlet hole, the gas inside the contour cavity does not impede the injection molten material, and at the same time reduces the flow resistance of the injection molten material, allowing the injection molten material to quickly fill the contour cavity, effectively filling structurally complex parts, and reducing the injection pressure required for filling. When the injection molten material enters the contour cavity through the second inlet hole, the gas inside the contour cavity is discharged through the second vent hole 333. When the injection molten material fills the contour cavity, it can squeeze the first seal 325 to move towards the inner wall of the contour cavity inside the first groove, thereby sealing the first vent hole 324. Similarly, when the injection molten material fills the contour cavity, it can squeeze the second seal 334 to move towards the inner wall of the contour cavity inside the second groove, thereby sealing the second vent hole 333. During the sealing process, once the injection molded cavity is full, more injection molded material is injected into the cavity, causing the partition plate 321 to move closer to the stationary mold 31. This allows gas inside the piston cylinder 331 to enter the buffer cavity 34 through the first through hole 332, causing the piston plate 341 to slide downwards. The elastic element 342 is compressed, preventing the piston plate 341 from sealing the second through hole 343, thus allowing gas to escape from the buffer cavity 34. When the partition plate 321 returns to its initial position, the injection molded cavity is completely filled with injection molded material, and gas no longer enters the buffer cavity 34. The elastic element 342 returns to its original position, allowing the piston plate 341 to slide back to its initial position. This process simultaneously expels gas from the shaped cavity and the contour cavity during injection molding.This prevents problems such as air bubbles, scorching, and incomplete injection molding caused by trapped air.

[0046] Example 3

[0047] Based on the above embodiments, this embodiment also provides a processing technology for automotive lamp holder connectors, including the following specific steps:

[0048] S1. Start the external hydraulic power source to push the partition plate 321 to move, so that the partition plate 321 divides the injection cavity into the irregular cavity and the contour cavity;

[0049] S2. During the movement of the partition plate 321, the piston column 326 moves, causing the piston plate 341 inside the buffer cavity 34 to slide and the elastic element 342 to be stretched.

[0050] S3. When the partition plate 321 moves to the designated position, the first seal 325 pops out, allowing the gas inside the irregular cavity to enter the buffer cavity 34, thereby creating a negative pressure inside the irregular cavity;

[0051] S4. The injection molding material is injected into the irregular cavity and the contour cavity through the feeding device 13. Since the irregular cavity is smaller than the contour cavity, when the injection molding material fills the irregular cavity, the irregular cavity enters the pressure holding state.

[0052] S5. When the injection molten material fills the contour cavity, injection continues. The partition plate 321 slides inside the stationary mold 31 under the pressure of the injection molten material until the entire injection cavity is filled and the injection is completed.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An injection molding machine for automotive lamp holder connectors, comprising a machine body (1), wherein a movable fixing plate (11) and a stationary fixing plate (12) are provided on the machine body (1), characterized in that, Also includes: A moving mold base (2) is provided on a moving fixed plate (11), and a moving mold (21) is provided inside the moving mold base (2). A stationary mold base (3) is provided on a stationary fixing plate (12). A stationary mold (31) is provided inside the stationary mold base (3). A partition component (32) is provided inside the stationary mold (31). The partition component (32) includes a partition plate (321) provided inside the stationary mold (31). The moving mold (21) and the stationary mold (31) can cooperate to form an injection cavity, and the partition component (32) can divide the injection cavity into an irregular cavity and a contour cavity; The stationary mold base (3) is provided with an exhaust assembly (33). When the partition assembly (32) divides the injection cavity into a shaped cavity and a contour cavity, the shaped cavity is smaller than the contour cavity. The exhaust assembly (33) can create a negative pressure inside the shaped cavity. The exhaust assembly (33) includes a piston cylinder (331) disposed inside the stationary mold (31). One end of the piston cylinder (331) is provided with a first through hole (332). One end of the stationary mold base (3) is fixedly connected to a buffer cavity (34). The first through hole (332) is connected to the buffer cavity (34) through a pipe. The partition plate (321) has a first exhaust hole (324) on its side wall. A first sealing element (325) is provided inside the first exhaust hole (324). A piston column (326) is fixedly connected to one end of the partition plate (321). The piston column (326) and the piston cylinder (331) are slidably connected. The first exhaust hole (324) is connected to the inside of the piston cylinder (331) through a pipe. The partition plate (321) is provided with a first groove inside, the first sealing member (325) is slidably connected to the first groove, and the first groove is provided with elastic gas. The stationary mold (31) has a third through hole inside, which is connected to an external hydraulic source. The external hydraulic source inputs or discharges hydraulic medium into the third through hole, causing the partition plate (321) to move inside the stationary mold (31). When the partition plate (321) moves to the designated position, the first seal (325) pops out, allowing the gas inside the irregular cavity to enter the buffer cavity (34), resulting in negative pressure inside the irregular cavity.

2. The injection molding equipment for automotive lamp holder connectors according to claim 1, characterized in that: The partition plate (321) has a partition groove (322) inside, the moving mold (21) has a core (211) inside, the inner wall of the partition groove (322) can cooperate with the outer wall of the core (211), and the stationary mold (31) has a support block (323) fixedly connected inside, the support block (323) and the partition groove (322) are matched.

3. The injection molding equipment for automotive lamp holder connectors according to claim 2, characterized in that: A piston plate (341) is slidably connected inside the buffer cavity (34). An elastic element (342) is provided inside the buffer cavity (34). One end of the elastic element (342) is fixedly connected to the piston plate (341), and the other end of the elastic element (342) is fixedly connected to the inner wall of the buffer cavity (34). A second through hole (343) is opened inside the buffer cavity (34). The second through hole (343) is connected to the outside. The piston plate (341) can change the sealing state of the second through hole (343).

4. The injection molding equipment for automotive lamp holder connectors according to claim 3, characterized in that: The static mold (31) has a second vent hole (333) inside, and a second seal (334) is provided inside the second vent hole (333). The second vent hole (333) is connected to the outside through a pipe.

5. The injection molding equipment for automotive lamp holder connectors according to claim 4, characterized in that: The static mold (31) has a second sliding groove inside, the second seal (334) is slidably connected to the second sliding groove, and the second sliding groove is filled with elastic gas.

6. The injection molding equipment for automotive lamp holder connectors according to claim 5, characterized in that: The support block (323) has a first feed hole inside, the side wall of the stationary mold (31) has a second feed hole, and the stationary mold base (3) has a feed pipe inside. The first feed hole and the second feed hole are both connected to the feed pipe.

7. The injection molding equipment for automotive lamp holder connectors according to claim 6, characterized in that: The interior of the stationary mold base (3) is provided with a clearance hole corresponding to the third through hole. The main body of the equipment (1) is provided with a feeding device (13), and the output end of the feeding device (13) is connected to the feeding pipe.

8. A processing technology for an automotive lamp holder connector, employing the injection molding equipment for an automotive lamp holder connector as described in claim 7, characterized in that, Includes the following steps: S1. The partition plate (321) is moved by an external hydraulic source, so that the partition plate (321) divides the injection cavity into an irregular cavity and a contour cavity; S2. During the movement of the partition plate (321), the piston column (326) is moved, causing the piston plate (341) inside the buffer chamber (34) to slide and the elastic element (342) to be stretched. S3. When the partition plate (321) moves to the designated position, the first seal (325) pops out, allowing the gas inside the irregular cavity to enter the buffer cavity (34), thus creating a negative pressure inside the irregular cavity; S4. The injection molten material is injected into the irregular cavity and the contour cavity through the feeding device (13). Since the irregular cavity is smaller than the contour cavity, when the injection molten material fills the irregular cavity, the irregular cavity enters the pressure holding state. S5. When the injection molten material fills the contour cavity, continue injection molding. The partition plate (321) slides inside the stationary mold (31) under the pressure of the injection molten material until the entire injection cavity is filled and the injection molding is completed.

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