Injection molding equipment for automobile lamp holder connecting piece and machining process of injection molding equipment

Abstract

The invention discloses injection molding equipment for an automobile lamp holder connecting piece and a machining process thereof, and particularly relates to the technical field of injection molding equipment, the injection molding equipment comprises an equipment body, a movable mold base and a static mold base, and a movable mold is arranged in the movable mold base; a static mold is arranged in the static mold base, and a separation assembly is arranged in the static mold; the movable mold and the static mold can be matched with each other to form an injection molding cavity; the partition assembly can divide the injection molding cavity into a special-shaped cavity and a contour cavity; according to the injection molding device, injection molding melt is injected into the special-shaped cavity and the contour cavity correspondingly, so that the injection molding melt can accurately flow into an area with the complex shape, when the special-shaped cavity is filled with the injection molding melt, pressure maintaining feeding is conducted on the special-shaped cavity, and therefore the injection molding efficiency is improved. And during injection molding, gas in the special-shaped cavity and the outline cavity is exhausted, and the flowing resistance of injection molding melt is reduced, so that the problems of bubbles, scorching and insufficient injection molding caused by air retention are prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection molding equipment, more particularly, the present application relates to an injection molding equipment for automobile lamp holder connecting piece and a processing technology thereof. BACKGROUND

[0002] The connecting piece for automobile lamp is a key component for realizing mechanical fixation, electrical connection or optical transmission in the lamp system, which is mainly produced by injection molding. The engineering plastic is injected into the precision mold through the injection molding equipment to ensure that the product has the characteristics of high structural strength, accurate size and good environmental resistance by controlling the process parameters, so as to meet the long-term use requirements of the lamp in complex environment.

[0003] The Chinese patent with application number 202310288131.3 discloses an automobile lamp holder integrated injection molding equipment, a frame body and a blanking assembly. The blanking assembly is erected above the frame body and at least includes linear module one, linear module two, linear module three and auxiliary demolding assembly. The linear module one, linear module two and linear module three jointly constitute a three-axis motion module, and the auxiliary demolding assembly is fixed to the output end of the three-axis motion module. The invention applies demolding agent on the core and the separation plate through the auxiliary demolding assembly, thereby avoiding the problem that the product is difficult to demold due to adhesion to the core.

[0004] However, in the prior art, due to the complex internal shape of the connecting piece, there are many grooves and fillets, and the injection melt is prone to dead angles during flow. If the injection melt cannot completely fill the mold cavity, it will cause the phenomenon of incomplete product. In addition, if the gas inside the mold cavity cannot be discharged in time during the injection molding process, it is easy to cause the product surface to bubble, the product to be internally mixed with bubbles, and the injection molding to be incomplete. Therefore, the present application proposes an injection molding equipment for automobile lamp holder connecting piece and a processing technology thereof to solve the above problems. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present application provide an injection molding equipment for automobile lamp holder connecting piece and a processing technology thereof to solve the problems raised in the above background.

[0006] In order to achieve the above object, the present application provides the following technical scheme: An injection molding equipment for automobile lamp holder connecting piece, comprising: an equipment body, a movable mold base, a static mold base, a movable fixing plate and a static fixing plate are arranged on the equipment body, the movable mold base is arranged on the movable fixing plate, and a movable mold is arranged in the movable mold base; the static mold base is arranged on the static fixing plate, a static mold is arranged in the static mold base, and a separation assembly is arranged in the static mold; the movable mold and the static mold can cooperate with each other to form an injection molding cavity, and the separation assembly can separate the injection molding cavity into a special-shaped cavity and a contour cavity; an exhaust assembly is arranged in the static mold base, when the separation assembly separates the injection molding cavity into the special-shaped cavity and the contour cavity, the special-shaped cavity is smaller than the contour cavity, and the exhaust assembly can form negative pressure in the special-shaped cavity.

[0007] Preferably, the separation assembly comprises a separation plate arranged in the static mold, an inner wall of a separation groove arranged in the separation plate can cooperate with an outer wall of a core arranged in the movable mold, and a support block fixedly connected in the static mold matches the separation groove.

[0008] Preferably, the exhaust assembly comprises a piston cylinder arranged in the static mold, a first through hole is arranged at one end of the piston cylinder, a buffer cavity is fixedly connected at one end of the static mold base, and the first through hole is connected with the buffer cavity through a pipeline.

[0009] Preferably, a first exhaust hole is arranged in a side wall of the separation plate, a first sealing element is arranged in the first exhaust hole, a piston column is fixedly connected at one end of the separation plate, the piston column is slidably connected with the piston cylinder, and the first exhaust hole is connected with the inside of the piston cylinder through a pipeline.

[0010] Preferably, a piston plate is slidably connected in the inside of the buffer cavity, an elastic element is arranged in the inside of the buffer cavity, one end of the elastic element is fixedly connected with the piston plate, the other end of the elastic element is fixedly connected with the inner wall of the buffer cavity, a second through hole is arranged in the inside of the buffer cavity, the second through hole is connected with the outside, and the piston plate can change the sealing state of the second through hole.

[0011] Preferably, a second exhaust hole is arranged in the inside of the static mold, a second sealing element is arranged in the inside of the second exhaust hole, and the second exhaust hole is connected with the outside through a pipeline.

[0012] Preferably, a first sliding groove is arranged in the inside of the separation plate, the first sealing element is slidably connected with the first sliding groove, elastic gas is arranged in the inside of the first sliding groove, a second sliding groove is arranged in the inside of the static mold, the second sealing element is slidably connected with the second sliding groove, and elastic gas is arranged in the inside of the second sliding groove.

[0013] Preferably, a first feeding hole is formed in the support block, a second feeding hole is formed in the side wall of the static mold, and a feeding pipeline is formed in the static mold seat, the first feeding hole and the second feeding hole being in communication with the feeding pipeline.

[0014] Preferably, a third through hole is formed in the static mold, the third through hole being in communication with an external hydraulic source, a corresponding avoiding hole is formed in the static mold seat, and a feeding device is arranged on the equipment body, the output end of the feeding device being in communication with the feeding pipeline.

[0015] A processing technology of an automobile lamp holder connecting piece, comprising the following steps: S1. A partition plate is moved by an external hydraulic source, so that the partition plate divides the injection cavity into a special-shaped cavity and a contour cavity; S2. The partition plate drives a piston column to move in the moving process, so that a piston plate in the buffer cavity slides, and an elastic member is stretched; S3. When the partition plate moves to a specified position, a first sealing member is popped out, so that the gas in the special-shaped cavity enters the buffer cavity, and negative pressure is generated in the special-shaped cavity; S4. Injection melt is injected into the special-shaped cavity and the contour cavity by a feeding device, and since the special-shaped cavity is smaller than the contour cavity, when the injection melt fills the special-shaped cavity, the special-shaped cavity enters a pressure maintaining state; S5. When the injection melt fills the contour cavity, injection is continued, the partition plate slides in the static mold under the pressure of the injection melt, and the whole injection cavity is filled to complete injection.

[0016] Technical effects and advantages of the present application: The present application can accurately flow into the region with a relatively complex shape by injecting injection melt into the special-shaped cavity and the contour cavity respectively, and the special-shaped cavity is pressure maintained and compacted when the injection melt fills the special-shaped cavity, so that the problem that the product is incomplete due to incomplete filling of the mold cavity by the injection melt is avoided, and the gas in the special-shaped cavity and the contour cavity is discharged during injection, negative pressure is formed in the special-shaped cavity, the injection melt can quickly fill the special-shaped cavity, and the flow resistance of the injection melt is reduced during injection, so that the problems of air bubbles, burning and incomplete injection caused by air retention are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0018] Figure 2 It is a schematic diagram of the overall structure of the movable mold seat and the static mold seat of the present application.

[0019] Figure 3 It is an exploded schematic diagram of the overall structure of the movable mold and the static mold of the present application.

[0020] Figure 4 The overall structure of the static die of the present application is shown in the sectional view.

[0021] Figure 5 The overall structure of the connecting piece of the present application is shown in the schematic view.

[0022] Figure 6 The overall structure of the dynamic die seat and the static die seat of the present application is shown in the sectional view.

[0023] Figure 7 The structure of the buffer cavity of the present application is shown in the sectional view.

[0024] The reference signs are as follows: 1, device body; 11, dynamic fixing plate; 12, static fixing plate; 13, feeding device; 2, dynamic die seat; 21, dynamic die; 211, core; 3, static die seat; 31, static die; 32, separation assembly; 321, separation plate; 322, separation groove; 323, support block; 324, first exhaust hole; 325, first sealing piece; 326, piston column; 33, exhaust assembly; 331, piston cylinder; 332, first through hole; 333, second exhaust hole; 334, second sealing piece; 34, buffer cavity; 341, piston plate; 342, elastic piece; 343, second through hole; 4, connecting piece. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0026] Embodiment 1 In the actual production process, due to the complex internal shape of the connecting piece, there are many grooves and round corners, and the injection melt is prone to dead angle in the flowing process. If the injection melt cannot completely fill the mold cavity, it will lead to the phenomenon of incomplete product. In order to solve the above problems, the present embodiment is invented.

[0027] Please refer to Figures 1 to 7As shown, an embodiment of the present application is an injection molding equipment for automobile lamp holder connectors, which comprises an equipment body 1, a movable mold base 2 and a static mold base 3. The equipment body 1 is provided with a movable fixed plate 11 and a static fixed plate 12. The movable mold base 2 is arranged on the movable fixed plate 11, and the inside of the movable mold base 2 is provided with a movable mold 21. The static mold base 3 is arranged on the static fixed plate 12, and the inside of the static mold base 3 is provided with a static mold 31, which is provided with a partition assembly 32. The movable mold 21 and the static mold 31 can cooperate with each other to form an injection molding cavity, which is used for injection molding of the connector 4. The partition assembly 32 can divide the injection molding cavity into a special-shaped cavity and a contour cavity. The inside of the static mold base 3 is provided with an exhaust assembly 33. When the partition assembly 32 divides the injection molding cavity into the special-shaped cavity and the contour cavity, the volume of the special-shaped cavity is smaller than that of the contour cavity, and the exhaust assembly 33 can form a negative pressure inside the special-shaped cavity.

[0028] As shown in Figure 2 and Figure 3 shown, the partition assembly 32 comprises a partition plate 321 arranged in the inside of the static mold 31. The partition plate 321 is in sliding connection with the inner wall of the static mold 31. The inside of the partition plate 321 is provided with a partition groove 322. The inside of the movable mold 21 is provided with a core 211. The inner wall of the partition groove 322 can cooperate with the outer wall of the core 211. The inside of the static mold 31 is fixedly connected with a support block 323, which is matched with the partition groove 322. The core 211 is matched with the groove in the inside of the connector 4. Figure 5 As shown in

[0029] As shown in Figure 4 shown, the exhaust assembly 33 comprises a piston cylinder 331 arranged in the inside of the static mold 31. One end of the piston cylinder 331 is provided with a first through hole 332. One end of the static mold base 3 is fixedly connected with a buffer cavity 34. The first through hole 332 is connected with the buffer cavity 34 through a pipeline.

[0030] As shown in Figure 4 shown, the side wall of the partition plate 321 is provided with a first exhaust hole 324. The inside of the first exhaust hole 324 is provided with a first sealing element 325. One end of the partition plate 321 is fixedly connected with a piston column 326, which is in sliding connection with the piston cylinder 331. The first exhaust hole 324 is connected with the inside of the piston cylinder 331 through a pipeline. The first exhaust hole 324 is located at the top of the special-shaped cavity. The first sealing element 325 is provided with a sealing plate close to one end of the special-shaped cavity. When the injection molding melt fills the special-shaped cavity, the injection molding melt can push the first sealing element 325 to seal the first exhaust hole 324.

[0031] As shown in Figure 7The inside of the buffer cavity 34 is slidably connected with a piston plate 341, the inside of the buffer cavity 34 is provided with an elastic element 342, one end of the elastic element 342 is fixedly connected with the piston plate 341, the other end of the elastic element 342 is fixedly connected with the inner wall of the buffer cavity 34, the inside of the buffer cavity 34 is provided with a second through hole 343, the second through hole 343 is connected with the outside, and the piston plate 341 can change the sealing state of the second through hole 343.

[0032] As shown in Figure 4 and Figure 7 , the inside of the static mold 31 is provided with a second exhaust hole 333, the inside of the second exhaust hole 333 is provided with a second sealing element 334, the second exhaust hole 333 is connected with the outside through a pipeline, wherein the second exhaust hole 333 is located at the top of the injection cavity, one end of the second sealing element 334 is provided with a sealing plate, when the injection melt fills the profile cavity, the injection melt can push the sealing plate to seal the second exhaust hole 333.

[0033] As shown in Figure 4 , the inside of the partition plate 321 is provided with a first sliding groove, the first sealing element 325 is slidably connected with the first sliding groove, the inside of the first sliding groove is provided with elastic gas, the inside of the static mold 31 is provided with a second sliding groove, the second sealing element 334 is slidably connected with the second sliding groove, the inside of the second sliding groove is provided with elastic gas, when the first sealing element 325 moves to the inside of the first sliding groove, the elastic gas inside is compressed, when the second sealing element 334 moves to the inside of the second sliding groove, the elastic gas inside is compressed.

[0034] As shown in Figure 6 , the inside of the support block 323 is provided with a first feeding hole, the sidewall of the static mold 31 is provided with a second feeding hole, the inside of the static mold base 3 is provided with a feeding pipeline, the first feeding hole and the second feeding hole are connected with the feeding pipeline, the inside of the static mold 31 is provided with a third through hole, the third through hole is connected with the external hydraulic source, the third through hole is inputted or discharged with hydraulic medium through the external hydraulic source, so that the partition plate 321 moves in the inside of the static mold 31, the inside of the static mold base 3 is provided with a relief hole corresponding to the third through hole, the third through hole is provided with an overflow valve, the overflow valve is connected with the external hydraulic oil tank, in combination with Figure 1 , the equipment body 1 is provided with a feeding device 13, the output end of the feeding device 13 is connected with the feeding pipeline, in combination with Figure 2 and Figure 6 , the internal feeding pipeline layout of the movable mold base 2 and the static mold base 3 can be changed according to actual production needs, and the number of buffer cavities 34 is increased, so that the number of movable molds 21 and static molds 31 is increased, so that multiple connecting pieces 4 are processed at one time, wherein the internal feeding pipeline layout of the movable mold base 2 and the static mold base 3 is changed as the prior art, which will not be described here.

[0035] In use, in injection molding, the movable fixed plate 11 is driven to move by an external hydraulic source to cooperate the movable mold 21 and the static mold 31 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 static mold 31. At this time, the hydraulic medium is input to the inside of the third through hole through the hydraulic source, so that the partition plate 321 moves to the movable mold 21 inside the static mold 31. When the partition plate 321 moves to the one end of the partition groove 322 and the core 211 and the support block 323 form a special-shaped cavity, the end face of the partition plate 321 and the inner wall of the movable mold 21 and the static mold 31 form a contour cavity. The injection melt is injected into the special-shaped cavity and the contour cavity through the first feeding hole and the second feeding hole through the feeding pipe by the feeding device 13, so that the injection melt can flow into the area with complex shape accurately, preventing the problem that the injection melt is easy to produce dead angle in the process of flowing due to the complex shape of the groove inside the connecting piece 4. Since the volume of the special-shaped cavity is smaller than that of the contour cavity, when the special-shaped cavity is filled with injection melt, the injection melt cannot enter the injection melt through the first feeding hole. At this time, the special-shaped cavity enters the pressure maintaining state. When the injection melt inside the special-shaped cavity shrinks due to heat loss, the injection melt can be supplemented through the first feeding hole. When the injection melt fills the contour cavity, the injection melt continues to be injected into the inside of the contour cavity, so that the pressure inside the contour cavity increases. When the pressure inside the contour cavity is greater than the rated pressure of the overflow valve, the partition plate 321 moves to the inner wall close to the static mold 31, so that the injection melt continues to enter the inside of the contour cavity, and the injection is completed with the movement of the partition plate 321 and the wrapping of the special-shaped cavity.

[0036] Example 2 In actual use, it is found that if the gas inside the cavity cannot be discharged in time during injection molding, it will hinder the injection melt from filling the cavity, and also cause the problems of product surface bubbling, internal air bubble inclusion and incomplete injection. Based on the above examples, further improvement is made.

[0037] On the basis of the above-mentioned 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 close to the inner wall of the static mold 31, the first sealing piece 325 cannot be popped out due to the blockage of the support block 323, the elastic gas inside the first sliding groove is compressed, the first exhaust hole 324 is sealed, and the second sealing piece 334 does not seal the second exhaust hole 333. During injection molding, hydraulic medium is input into the third through hole by the hydraulic source, so that the partition plate 321 moves inside the static mold 31 to approach the dynamic mold 21, so that the piston column 326 slides inside the piston cylinder 331 following the partition plate 321, so that the gas inside the buffer cavity 34 enters the piston cylinder 331 through the pipeline and the first through hole 332, so that the piston plate 341 slides upward inside the buffer cavity 34, and the elastic piece 342 is stretched. At this time, the second through hole 343 is still sealed. When the partition plate 321 moves to the end of the partition groove 322 and the support block 323 forms a special-shaped cavity, the first sealing piece 325 is no longer blocked by the support block 323, the elastic gas inside the first sliding groove recovers, the first sealing piece 325 pops out, the first exhaust hole 324 is connected with the special-shaped cavity, so that the gas inside the special-shaped cavity enters the buffer cavity 34 through the first exhaust hole 324, the elastic piece 342 recovers, and the piston plate 341 slides to the initial position inside the buffer cavity 34, so that a negative pressure is formed inside the special-shaped cavity, so that when the injection melt enters the special-shaped cavity through the first feed hole, the gas inside the special-shaped cavity does not hinder the injection melt, and the flow resistance of the injection melt is reduced, so that the injection melt can quickly fill the special-shaped cavity, effectively fill the complex structure, and reduce the injection pressure required for filling. When the injection melt enters the profile cavity through the second feed hole, the gas inside the profile cavity is discharged through the second exhaust hole 333. When the injection melt fills the special-shaped cavity, the injection melt can extrude the first sealing piece 325 to move inside the first sliding groove to the inner wall of the special-shaped cavity, so that the first sealing piece 325 seals the first exhaust hole 324. Similarly, when the injection melt fills the profile cavity, the injection melt can extrude the second sealing piece 334 to move inside the second sliding groove to the inner wall of the profile cavity, so that the second sealing piece 334 seals the second exhaust hole 333. When the injection melt fills the profile cavity, the injection melt continues to be injected into the profile cavity, so that the partition plate 321 moves in the direction close to the static mold 31, so that the gas inside the piston cylinder 331 enters the buffer cavity 34 through the first through hole 332, so that the piston plate 341 slides downward, the elastic piece 342 is compressed, so that the piston plate 341 no longer seals the second through hole 343, so that the gas in the buffer cavity 34 is discharged. When the partition plate 321 moves to the initial position, the injection melt completely fills the injection cavity, the gas inside the piston cylinder 331 no longer enters the buffer cavity 34, the elastic piece 342 recovers, so that the piston plate 341 slides to the initial position, and the gas inside the special-shaped cavity and the profile cavity is discharged during injection molding,Thus, air bubble, burning, and injection molding underfill caused by air retention are prevented.

[0038] Embodiment 3 Based on the above embodiment, the embodiment further provides a processing technology of the automobile lamp holder connecting piece, including the following steps: S1. Start the external hydraulic source to push the partition plate 321 to move, so that the partition plate 321 divides the injection cavity into the special-shaped cavity and the contour cavity; S2. The partition plate 321 drives the piston column 326 to move in the moving process, so that the piston plate 341 inside the buffer cavity 34 slides, and the elastic member 342 is stretched; S3. When the partition plate 321 moves to the specified position, the first sealing member 325 pops out, so that the gas inside the special-shaped cavity enters the buffer cavity 34, thereby generating negative pressure inside the special-shaped cavity; S4. The injection melt is injected into the special-shaped cavity and the contour cavity through the feeding device 13, and since the special-shaped cavity is smaller than the contour cavity, when the injection melt fills the special-shaped cavity, the special-shaped cavity enters the pressure maintaining state; S5. When the injection melt fills the contour cavity, at this time, the partition plate 321 slides inside the static mold 31 under the injection melt pressure, until the whole injection cavity is filled to complete the injection.

[0039] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art in the technical range disclosed by the present application, according to the technical scheme and the inventive concept of the present application, equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. An injection molding apparatus for a vehicle lamp holder connector, comprising an apparatus body (1) provided with a dynamic fixing plate (11) and a static fixing plate (12), characterized in that, Also include: The movable die base (2) is arranged on the movable fixed plate (11), and the inside of the movable die base (2) is provided with a movable die (21); The static die base (3) is arranged on the static fixed plate (12), and the inside of the static die base (3) is provided with a static die (31), and the inside of the static die (31) is provided with a separation assembly (32); The movable die (21) and the static die (31) can cooperate to form an injection cavity, and the separation assembly (32) can separate the injection cavity into a special-shaped cavity and a contour cavity; The inside of the static die base (3) is provided with an exhaust assembly (33), when the separation assembly (32) separates the injection cavity into a special-shaped cavity and a contour cavity, the special-shaped cavity is smaller than the contour cavity, and the exhaust assembly (33) can form negative pressure inside the special-shaped cavity.

2. The injection molding apparatus for a vehicle lamp socket connector according to claim 1, characterized by: The separation assembly (32) includes a separation plate (321) arranged in the static die (31), the inside of the separation plate (321) is provided with a separation groove (322), the inside of the movable die (21) is provided with a core (211), the inner wall of the separation groove (322) can cooperate with the outer wall of the core (211), and the inside of the static die (31) is fixedly connected with a support block (323), and the support block (323) is matched with the separation groove (322).

3. The injection molding apparatus for a vehicle lamp socket connector according to claim 2, characterized by: The exhaust assembly (33) includes a piston cylinder (331) arranged in the static die (31), one end of the piston cylinder (331) is provided with a first through hole (332), one end of the static die base (3) is fixedly connected with a buffer cavity (34), and the first through hole (332) is connected with the buffer cavity (34) through a pipeline.

4. The injection molding apparatus for a vehicle lamp socket connector according to claim 3, characterized by: The side wall of the separation plate (321) is provided with a first exhaust hole (324), the first exhaust hole (324) is provided with a first sealing element (325), one end of the separation plate (321) is fixedly connected with a piston column (326), the piston column (326) and the piston cylinder (331) are connected in sliding mode, and the first exhaust hole (324) is connected with the inside of the piston cylinder (331) through a pipeline.

5. The injection molding apparatus for a vehicle lamp socket connector according to claim 3, characterized by: The inside of the buffer cavity (34) is slidably connected with a piston plate (341), the inside of the buffer cavity (34) is provided with an elastic element (342), one end of the elastic element (342) is fixedly connected with the piston plate (341), the other end of the elastic element (342) is fixedly connected with the inner wall of the buffer cavity (34), the inside of the buffer cavity (34) is provided with a second through hole (343), the second through hole (343) is connected with the outside, and the piston plate (341) can change the sealing state of the second through hole (343).

6. The injection molding apparatus for a vehicle lamp socket connector according to claim 4, characterized by: The inside of the static die (31) is provided with a second exhaust hole (333), the inside of the second exhaust hole (333) is provided with a second sealing element (334), and the second exhaust hole (333) is connected with the outside through a pipeline.

7. The injection molding apparatus for an automotive lamp socket connector according to claim 6, wherein: The inside of the partition plate (321) is provided with a first sliding groove, the first sealing element (325) is in sliding connection with the first sliding groove, the inside of the first sliding groove is provided with elastic gas, the inside of the static mold (31) is provided with a second sliding groove, the second sealing element (334) is in sliding connection with the second sliding groove, and the inside of the second sliding groove is provided with elastic gas.

8. The injection molding apparatus for a vehicle lamp socket connector according to claim 7, characterized by: The inside of the support block (323) is provided with a first feeding hole, the side wall of the static mold (31) is provided with a second feeding hole, and the inside of the static mold base (3) is provided with a feeding pipeline.

9. The injection molding apparatus for an automotive lamp socket connector according to claim 8, wherein: The inside of the static mold (31) is provided with a third through hole in communication with an external hydraulic source, the inside of the static mold base (3) is provided with a corresponding avoiding hole, and the equipment body (1) is provided with a feeding device (13) in communication with the feeding pipeline.

10. A process for manufacturing an automotive lamp holder connector using the injection molding apparatus for an automotive lamp holder connector according to claim 9, characterized by, The method comprises 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 a profile cavity and a contour cavity; S2. The partition plate (321) drives the piston column (326) to move in the moving process, so that the piston plate (341) in the buffer cavity (34) slides, and the elastic element (342) is stretched; S3. When the partition plate (321) moves to the specified position, the first sealing element (325) is popped out, so that the gas in the profile cavity enters the buffer cavity (34), and negative pressure is generated in the profile cavity; S4. The injection melt is injected into the profile cavity and the contour cavity through the feeding device (13), and since the profile cavity is smaller than the contour cavity, when the injection melt fills the profile cavity, the profile cavity enters the pressure maintaining state; S5. When the injection melt fills the contour cavity, the injection is continued, the partition plate (321) slides in the static mold (31) under the pressure of the injection melt, and the whole injection cavity is filled to complete the injection.

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