Pre-ejection demoulding mechanism for injection mould of electric car plastic parts

Abstract

The utility model belongs to mould technical field especially relates to a kind of electric vehicle plastic injection mould pre-ejector stripping mechanism.The utility model, including electric vehicle plastic part forming lower mould and electric vehicle plastic part forming upper mould, electric vehicle plastic part forming upper mould upper is equipped with injection plastic part, electric vehicle plastic part forming upper mould is equipped with forming concave cavity inside, electric vehicle plastic part forming lower mould is equipped with forming protrusion inside, the position of forming protrusion and forming concave cavity corresponds and shape is matched, electric vehicle plastic part forming lower mould is equipped with the side portion embedded straight top stripping piece that can reciprocate linear motion along vertical direction and end portion top stripping component that can slide along oblique direction in it.The utility model in stripping process, first through pre-ejector extension part forming abutting structure to complete extension part hole position pre-stripping, then step by step drive side portion and end portion stripping component, avoid stress concentration of synchronous stripping, prevent plastic cracking, deformation.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a pre-ejection and demolding mechanism for injection molds of plastic parts for electric vehicles. Background Technology

[0002] In the injection molding production of electric vehicle plastic parts, the structure of these parts often includes complex side-embedded structures, end extensions, and multi-directional holes (such as side holes and bottom holes). During demolding, these parts are prone to deformation, cracking, or deviations in hole accuracy due to uneven stress or improper demolding sequence. Traditional demolding mechanisms often employ unidirectional pushing or simultaneous demolding, which is ill-suited to complex structural requirements: demolding the main body first can easily lead to roughening of the extension holes; simultaneous pushing of the sides and ends can easily damage the plastic part due to stress concentration. Furthermore, the stability of the molding and demolding components in traditional mechanisms is insufficient, affecting part accuracy and production efficiency. Therefore, there is an urgent need to design a pre-ejection demolding mechanism for electric vehicle plastic part injection molds that enables step-by-step demolding, ensures the accuracy of extension holes, and avoids damage to the plastic part.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a precision mold for injection molding parts of electric vehicle batteries [Application No.: 202010214484.5], which includes a base, a fixed mold at the top center of the base, and a movable mold movably mounted above the fixed mold. After the fixed mold and the movable mold are closed, two sets of grooves form an injection cavity. Two sets of identical flow assembly block mechanisms are provided on the inner walls of the grooves on the left and right sides of the movable mold and on the left and right sides of the top of the movable plate. A cooling and heating mechanism connected to the fixed mold is provided at the top center of the top plate. However, this solution still cannot demold in stages during the demolding process, and the holes in the extended part of the product are easily damaged, resulting in poor product precision and quality. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems by providing a pre-ejection and demolding mechanism for injection molds of plastic parts for electric vehicles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pre-ejection and demolding mechanism for an electric vehicle plastic injection mold includes a lower mold and an upper mold. An injection molded part is positioned above the upper mold. A molding cavity is located within the upper mold. A molding protrusion is located within the lower mold. The molding protrusion corresponds to and is shaped to the molding cavity. The lower mold includes a side-embedded straight ejector that can reciprocate linearly in the vertical direction and an end-ejector that can slide obliquely. The side-embedded straight ejector and the end-ejector are alternately arranged. The lower mold also includes a pre-ejection extension molding abutment structure that slides with the end-ejector. A locking element is located below the end-ejector, capable of reciprocating linearly towards or away from the pre-ejection extension molding abutment structure.

[0007] In the above-mentioned pre-ejection and demolding mechanism for electric vehicle plastic injection molds, the end ejection and demolding assembly includes an end ejection auxiliary molding slider disposed in the lower mold of the electric vehicle plastic part, and the end ejection auxiliary molding slider is slidably engaged with the pre-ejection extension molding abutment structure.

[0008] In the above-mentioned pre-ejection and demolding mechanism for electric vehicle plastic injection molds, a base plate is provided below the lower mold of the electric vehicle plastic part, and a slide block is provided inside the base plate. An inclined connecting slide rod is provided at the bottom of the end ejection auxiliary molding slider. The top of the inclined connecting slide rod is fixedly connected to the end ejection auxiliary molding slider, and the bottom is slidably engaged with the slide block.

[0009] In the above-mentioned pre-ejection and demolding mechanism for electric vehicle plastic injection molds, the pre-ejection and demolding extension forming abutment structure includes an inner side slide seat disposed in the lower mold of the electric vehicle plastic part. The inner side of the inner side slide seat has a plastic part extension forming chamber, and the plastic part extension forming chamber is directly opposite to the end ejection auxiliary forming slider.

[0010] In the above-mentioned pre-ejection and demolding mechanism for injection molds of plastic parts for electric vehicles, the inner side slide can slide along one end of the ejection auxiliary molding slider that is close to or far from the end, and the molding cavity of the plastic part extension has two side hole molding shafts for the extension.

[0011] In the above-mentioned pre-ejection and demolding mechanism of the electric vehicle plastic injection mold, a first cylinder is provided in the lower mold of the electric vehicle plastic part. The piston rod of the first cylinder is connected to the extension bottom hole forming core pulling rod. The extension bottom hole forming core pulling rod extends into the molding cavity of the plastic part extension and is staggered with the side hole forming shaft of the extension.

[0012] In the above-mentioned pre-ejection and demolding mechanism for electric vehicle plastic injection molds, a limiting guide bar is provided in the lower mold for forming the electric vehicle plastic part, and the inner side slide block is slidably engaged with the limiting guide bar.

[0013] In the above-mentioned pre-ejection and demolding mechanism for electric vehicle plastic injection molds, the locking component includes a second cylinder disposed in the lower mold of the electric vehicle plastic molding part. The piston rod of the second cylinder is connected to a locking inclined rod, which is located below the end ejection auxiliary molding slider.

[0014] In the above-mentioned pre-ejection and demolding mechanism for electric vehicle plastic injection molds, the side-embedded straight ejector demolding component includes two side-embedded auxiliary molding sliders disposed in the lower mold of the electric vehicle plastic part, and the bottom of the side-embedded auxiliary molding sliders is provided with a straight ejector rod.

[0015] In the above-mentioned pre-ejection and demolding mechanism for electric vehicle plastic injection molds, the injection molded part includes an injection main board and an injection tube disposed above the upper mold for molding electric vehicle plastic parts, and the injection tube is connected to the molding cavity.

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

[0017] 1. In the demolding process, this utility model first completes the pre-demolding of the extension hole through the pre-ejection extension forming abutment structure, and then drives the side and end demolding components step by step to avoid stress concentration during synchronous demolding and prevent the plastic part from cracking and deforming.

[0018] 2. In this utility model, the pre-ejection extension forming abutment structure works in conjunction with the end ejection assembly, and the core-pulling rod and the side hole forming shaft are precisely positioned to ensure the size and position accuracy of the side hole and bottom hole of the extension.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a cross-sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the upper mold for molding plastic parts of electric vehicles.

[0023] Figure 4 This is a partial structural schematic diagram of the present invention.

[0024] Figure 5 This is a partial structural schematic diagram of another aspect of this utility model.

[0025] Figure 6 This is a partial structural schematic diagram of another aspect of this utility model.

[0026] In the diagram: 1. Lower mold for electric vehicle plastic parts; 2. Upper mold for electric vehicle plastic parts; 3. Injection part; 4. Molding cavity; 5. Molding protrusion; 6. Side-embedded straight ejector; 7. End ejector assembly; 8. Pre-ejection extension molding abutment structure; 9. Locking component; 10. End ejection auxiliary molding slider; 11. Base plate; 12. Slide seat; 13. Inclined connecting slide rod; 14. Inner side slide seat; 15. Molding chamber for plastic part extension; 16. Molding shaft for side hole of extension; 17. First cylinder; 18. Core-pulling rod for bottom hole of extension; 19. Limiting guide bar; 20. Second cylinder; 21. Locking inclined rod; 22. Side-embedded auxiliary molding slider; 23. Straight ejector rod; 24. Injection main board; 25. Injection tube. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figure 1-6 As shown, a pre-ejection and demolding mechanism for an electric vehicle plastic injection mold includes a lower mold 1 and an upper mold 2 for electric vehicle plastic parts. An injection molded part 3 is provided above the upper mold 2. A molding cavity 4 is provided inside the upper mold 2. A molding protrusion 5 is provided inside the lower mold 1. The molding protrusion 5 corresponds to the molding cavity 4 in position and is matched in shape. The lower mold 1 is provided with a side-embedded straight ejector 6 that can reciprocate linearly in the vertical direction and an end ejector assembly 7 that can slide obliquely. The side-embedded straight ejector 6 and the end ejector assembly 7 are staggered. The lower mold 1 is also provided with a pre-ejection extension molding abutment structure 8 that slides with the end ejector assembly 7. A locking member 9 is provided below the end ejector assembly 7 that can reciprocate linearly along one end close to or away from the pre-ejection extension molding abutment structure 8.

[0029] In this embodiment, during the injection molding process, the injection molded part 3 above the upper mold 2 is used to deliver molten material into the mold. The upper mold 2 is machined with a molding cavity 4, and the lower mold 1 is provided with a molding protrusion 5. The molding protrusion 5 and the molding cavity 4 are positioned and matched in shape. When the mold is closed, the two together form the molding space of the main body of the plastic part. Two types of demolding components are installed in the lower mold 1: the side-embedded straight ejector 6 can reciprocate linearly in the vertical direction and is used for demolding the side structure of the plastic part; the end ejector 7 can slide obliquely and is used for demolding the end structure of the plastic part. The two are staggered to adapt to the structural characteristics of different parts of the plastic part. The lower mold 1 is also provided with a pre-ejection extension forming abutment structure 8, which slides with the end ejector 7 and participates in the molding of the extension of the plastic part. A locking member 9 is provided below the end ejector 7. The locking member 9 can reciprocate in the direction of approaching or away from the pre-ejection extension forming abutment structure 8. The end ejector 7 is locked in the molding stage and unlocked in the demolding stage.

[0030] Combination Figure 1-6 As shown, the end ejection assembly 7 includes an end ejection auxiliary molding slider 10 disposed in the lower mold 1 for molding electric vehicle plastic parts. The end ejection auxiliary molding slider 10 is slidably engaged with the pre-ejection extension molding abutment structure 8.

[0031] Specifically, the core component of the end ejection assembly 7 is the end ejection auxiliary molding slider 10. This slider is set in the mounting groove inside the lower mold 1. The side of the slider near the pre-ejection extension molding abutment structure 8 is machined with a smooth sliding surface, which is in close contact with the corresponding sliding surface of the pre-ejection extension molding abutment structure 8. The two achieve relative movement through sliding cooperation, and together form the molding contour of the end and extension of the plastic part. The end ejection auxiliary molding slider 10 directly participates in the molding of the end of the plastic part. The sliding cooperation with the pre-ejection extension molding abutment structure 8 not only ensures the sealing of the molding surface and prevents material leakage during injection, but also provides guidance for the relative movement during subsequent demolding, ensuring smooth demolding action.

[0032] The lower mold 1 for molding plastic parts of electric vehicles is provided with a base plate 11, and a slide block 12 is provided inside the base plate 11. The bottom of the end ejection auxiliary molding slider 10 is provided with an inclined connecting slide rod 13. The top of the inclined connecting slide rod 13 is fixedly connected to the end ejection auxiliary molding slider 10, and the bottom is slidably engaged with the slide block 12.

[0033] In this embodiment, an inclined connecting slide rod 13 is welded to the bottom of the end ejection auxiliary forming slider 10. The inclination angle of the inclined connecting slide rod 13 is consistent with the groove angle of the slide block 12. Its top is welded and fixed to the center position of the bottom of the end ejection auxiliary forming slider 10, and its bottom is embedded in the inclined groove of the slide block 12, allowing it to slide freely along the length of the groove. When an external power drives the inclined connecting slide rod 13 to slide along the groove, the inclined connecting slide rod 13 drives the end ejection auxiliary forming slider 10 to move obliquely in sync.

[0034] Combination Figure 3-6 As shown, the pre-ejection extension forming abutment structure 8 includes an inner side slide 14 disposed in the lower mold 1 for molding electric vehicle plastic parts. The inner side of the inner side slide 14 has a plastic part extension forming chamber 15, which is directly opposite to the end ejection auxiliary forming slider 10.

[0035] In this embodiment, the inner side of the inner slide block 14 near the end ejection auxiliary molding slider 10 is machined with a molding chamber 15 for the plastic part extension. The shape of the chamber matches the shape of the plastic part extension, and the opening of the chamber is directly opposite the end of the end ejection auxiliary molding slider 10. The end of the end ejection auxiliary molding slider 10 can be embedded in the edge of the chamber, and the two together form a complete molding space for the plastic part extension.

[0036] The inner side slide 14 can slide along one end of the ejection auxiliary molding slider 10, which is close to or far from the end. The molding chamber 15 of the plastic part extension has two extension side hole molding shafts 16.

[0037] In this embodiment, the in-mold side slide 14 is driven by a driving mechanism (such as a hydraulic cylinder) in the lower mold 1, and can slide along the direction close to or away from the end ejection auxiliary molding slider 10 to achieve contact or separation with the slider. Two extension side hole molding shafts 16 are fixed in the molding chamber 15 of the plastic part extension, perpendicular to the side of the chamber. The diameter of the shaft is consistent with the diameter of the side hole of the plastic part extension, and its axis position corresponds to the designed position of the side hole. During injection molding, the shaft is embedded in the molten material, and after molding, it forms the side hole. The sliding of the in-mold side slide 14 realizes the opening and closing with the end ejection auxiliary molding slider 10, facilitating the removal of the plastic part. The extension side hole molding shafts 16 directly form the extension side hole, ensuring the dimensional and positional accuracy of the side hole and avoiding efficiency reduction and accuracy deviation caused by subsequent side hole processing.

[0038] Combination Figure 5 As shown, the lower mold 1 for molding plastic parts of electric vehicles is provided with a first cylinder 17. The piston rod of the first cylinder 17 is connected to a core-pulling rod 18 for molding the bottom hole of the extension part. The core-pulling rod 18 for molding the bottom hole of the extension part extends into the molding chamber 15 of the plastic part extension part and is staggered with the side hole molding shaft 16 of the extension part.

[0039] In this embodiment, the core-pulling rod 18 for forming the bottom hole of the extension portion extends horizontally, with its free end passing through the reserved channel of the inner slide block 14 and entering the forming chamber 15 of the plastic part extension portion. It is spatially staggered with the side hole forming shaft 16 of the extension portion (i.e., their axes do not intersect or coincide), avoiding mutual interference during movement. During injection molding, the core-pulling rod extends out of the forming bottom hole. Before demolding, the first cylinder 17 retracts and pulls the core-pulling rod out of the bottom hole. The core-pulling rod 18 for forming the bottom hole of the extension portion realizes one-time forming of the bottom hole of the extension portion, eliminating the subsequent drilling process. The staggered design of the core-pulling rod and the side hole forming shaft avoids interference during the forming and core-pulling process, ensuring that multi-directional holes can be formed simultaneously. The first cylinder 17 drives the core-pulling rod to realize automated core-pulling, improving demolding efficiency.

[0040] The lower mold 1 for molding plastic parts of electric vehicles is provided with a limiting guide strip 19, and the inner side slide block 14 of the mold slides in sliding cooperation with the limiting guide strip 19.

[0041] In this embodiment, the limiting guide bar 19 precisely restricts the sliding direction of the inner side slide block 14 to prevent the slide block from shifting laterally or shaking during the movement, ensuring the relative positional accuracy of the molding chamber 15 of the plastic part extension and the end ejection auxiliary molding slider 10, thereby ensuring the molding accuracy of the extension and the stability of the pre-demolding action.

[0042] Combination Figure 1-6 As shown, the locking component 9 includes a second cylinder 20 disposed in the lower mold 1 for molding plastic parts of electric vehicles. The piston rod of the second cylinder 20 is connected to a locking inclined rod 21, which is located below the end ejection auxiliary molding slider 10.

[0043] In this embodiment, the second cylinder 20 drives the locking rod 21 to quickly lock and unlock the end ejection auxiliary forming slider 10, which is convenient to operate.

[0044] Combination Figure 1-6 As shown, the side-embedded straight ejector 6 includes two side-embedded auxiliary molding sliders 22 disposed in the lower mold 1 for molding electric vehicle plastic parts, and the bottom of the side-embedded auxiliary molding sliders 22 is provided with a straight ejector rod 23.

[0045] In this embodiment, the side-embedded auxiliary molding slider 22 directly molds the side-embedded structure of the plastic part, ensuring structural accuracy; the straight push rod 23 provides vertical pushing force, which is adapted to the demolding direction of the side-embedded structure, avoiding lateral force on the side of the plastic part during demolding and causing deformation; the two sliders are symmetrically distributed so that the side of the plastic part is subjected to uniform force, further preventing damage to the side structure.

[0046] Combination Figure 1-6 As shown, the injection molded part 3 includes an injection main board 24 and an injection tube 25 disposed above the upper mold 2 for molding electric vehicle plastic parts, and the injection tube 25 is connected to the molding cavity 4.

[0047] In this embodiment, during injection molding, the molten material is injected into the cavity through the injection molding main plate 24 and the injection molding tube 25.

[0048] The working principle of this utility model is as follows:

[0049] During injection molding, the upper mold 2 and lower mold 1 close, and the molding protrusion 5 and molding cavity 4 close to form the main cavity; the end ejection auxiliary molding slider 10 fits into the molding chamber 15 of the plastic part extension of the inner side slide 14, and the second cylinder 20 drives the locking angle rod 21 to extend into the bottom groove of the slider to lock the slider; the first cylinder 17 drives the bottom hole molding core-pulling rod 18 of the extension to extend into the chamber 15, and the side embedded auxiliary molding slider 22 is embedded in the side molding position, and the injection molded part 3 is injected through the molding process. Molten material is injected into the cavity through pipe 25. Under the action of various molding structures, the material cools and solidifies into a plastic part with side embedded structures, end extensions, and multi-directional holes. The upper mold 2 and lower mold 1 close, and the molding protrusion 5 and molding cavity 4 close to form the main cavity. The end ejection auxiliary molding slider 10 fits into the molding chamber 15 of the plastic part extension of the inner side slide 14. The second cylinder 20 drives the locking rod 21 to extend into the bottom groove of the slider to lock the slider. The first cylinder 17 drives the bottom hole of the extension. The molding core-pulling rod 18 extends into the cavity 15, and the side-embedded auxiliary molding slider 22 is embedded in the side molding position. The injection molded part 3 is injected into the cavity through the injection tube 25. The material is cooled and solidified into a plastic part with a side-embedded structure, an end extension, and multi-directional holes under the action of each molding structure. The second cylinder 20 pulls the locking angle rod 21 to disengage from the groove and release the lock on the end ejection auxiliary molding slider 10. External power drives the slider to slide obliquely along the slide block 12 through the oblique connecting slide rod 13, pushing the end of the plastic part to demold. At the same time, the external ejection mechanism pushes the side-embedded auxiliary molding slider 22 vertically upward through the straight ejector rod 23, pushing the side-embedded structure of the plastic part to demold. Each demolding component moves in the opposite direction to reset. The locking angle rod 21 relocks the slider. The inner side slide block 14 resets and fits the slider. The core-pulling rod 18 of the extension bottom hole extends. The upper mold 2 and the lower mold 1 close, waiting for the next injection cycle. The plastic part is demolded accurately and without damage through step-by-step actions.

[0050] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0051] Although this article frequently uses terms such as 1. lower mold for electric vehicle plastic parts, 2. upper mold for electric vehicle plastic parts, 3. injection molded part, 4. molding cavity, 5. molding protrusion, 6. side-embedded straight ejector, 7. end ejector assembly, 8. pre-ejection extension molding abutment structure, 9. locking element, 10. end ejection auxiliary molding slider, 11. base plate, 12. slide block, 13. inclined connecting slide rod, 14. inner side slide block, 15. molding chamber of plastic part extension, 16. side hole molding shaft of extension, 17. first cylinder, 18. core-pulling rod of extension bottom hole molding, 19. limiting guide bar, 20. second cylinder, 21. locking inclined rod, 22. side-embedded auxiliary molding slider, 23. straight ejector rod, 24. injection main board, and 25. injection tube, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A pre-ejection and demolding mechanism for an electric vehicle plastic injection mold, comprising a lower mold (1) for molding electric vehicle plastic parts and an upper mold (2) for molding electric vehicle plastic parts, characterized in that, The upper mold (2) for electric vehicle plastic parts is provided with an injection molded part (3). The upper mold (2) for electric vehicle plastic parts is provided with a molding cavity (4). The lower mold (1) for electric vehicle plastic parts is provided with a molding protrusion (5). The molding protrusion (5) and the molding cavity (4) are positioned and matched in shape. The lower mold (1) for electric vehicle plastic parts is provided with a side-embedded straight ejector (6) that can move back and forth in a vertical direction and an end ejector assembly (7) that can slide in an oblique direction. The side-embedded straight ejector (6) and the end ejector assembly (7) are arranged alternately. The lower mold (1) for electric vehicle plastic parts is also provided with a pre-ejection extension molding abutment structure (8) that slides with the end ejector assembly (7). The end ejector assembly (7) is provided with a locking part (9) below which can move back and forth in a linear motion along one end close to or away from the pre-ejection extension molding abutment structure (8).

2. The pre-ejection and demolding mechanism for electric vehicle plastic injection molds according to claim 1, characterized in that, The end ejection assembly (7) includes an end ejection auxiliary molding slider (10) disposed in the lower mold (1) for molding electric vehicle plastic parts. The end ejection auxiliary molding slider (10) is slidably engaged with the pre-ejection extension molding abutment structure (8).

3. The pre-ejection and demolding mechanism for electric vehicle plastic injection molds according to claim 2, characterized in that, The lower mold (1) for molding plastic parts of electric vehicles is provided with a base plate (11), and a slide block (12) is provided inside the base plate (11). The bottom of the end ejection auxiliary molding slider (10) is provided with an inclined connecting slide rod (13). The top of the inclined connecting slide rod (13) is fixedly connected to the end ejection auxiliary molding slider (10), and the bottom is slidably engaged with the slide block (12).

4. The pre-ejection and demolding mechanism for electric vehicle plastic injection molds according to claim 3, characterized in that, The pre-ejection extension forming abutment structure (8) includes an inner slide (14) disposed in the lower mold (1) for molding electric vehicle plastic parts. The inner side of the inner slide (14) has a plastic part extension forming chamber (15), which is directly opposite to the end ejection auxiliary forming slider (10).

5. The pre-ejection and demolding mechanism for electric vehicle plastic injection molds according to claim 4, characterized in that, The inner side slide (14) can slide along one end near or away from the end ejection auxiliary molding slider (10), and the molding chamber (15) of the plastic part extension has two extension side hole molding shafts (16).

6. The pre-ejection and demolding mechanism for electric vehicle plastic injection molds according to claim 5, characterized in that, The lower mold (1) for molding plastic parts of the electric vehicle is provided with a first cylinder (17). The piston rod of the first cylinder (17) is connected to a core-pulling rod (18) for molding the bottom hole of the extension part. The core-pulling rod (18) for molding the bottom hole of the extension part extends into the molding chamber (15) of the plastic part extension part and is staggered with the side hole molding shaft (16) of the extension part.

7. The pre-ejection and demolding mechanism for electric vehicle plastic injection molds according to any one of claims 4-6, characterized in that, The lower mold (1) for molding plastic parts of electric vehicles is provided with a limiting guide (19), and the inner side slide (14) of the mold is in sliding cooperation with the limiting guide (19).

8. The pre-ejection and demolding mechanism for electric vehicle plastic injection molds according to claim 2, characterized in that, The locking component (9) includes a second cylinder (20) disposed in the lower mold (1) for molding plastic parts of electric vehicles. The piston rod of the second cylinder (20) is connected to a locking slant rod (21), which is located below the end ejection auxiliary molding slider (10).

9. The pre-ejection and demolding mechanism for electric vehicle plastic injection molds according to claim 1, characterized in that, The side-embedded straight ejector (6) includes two side-embedded auxiliary molding sliders (22) disposed in the lower mold (1) for molding electric vehicle plastic parts, and the bottom of the side-embedded auxiliary molding sliders (22) is provided with a straight ejector rod (23).

10. The pre-ejection and demolding mechanism for electric vehicle plastic injection molds according to claim 1, characterized in that, The injection molded part (3) includes an injection main board (24) and an injection tube (25) disposed above the upper mold (2) for molding electric vehicle plastic parts, and the injection tube (25) is connected to the molding cavity (4).

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