Electric vehicle hood injection mold with fixed-distance secondary ejection mechanism

Abstract

The utility model provides an electric vehicle hood injection mold with a fixed-distance secondary ejection mechanism, and belongs to the technical field of molds. The mold comprises an upper mold plate and a lower mold plate, a forming cavity is formed between the upper mold plate and the lower mold plate, an upper ejection plate driven by an external lifting mechanism is arranged on the lower side of the lower mold plate, a straight ejection assembly is arranged on the upper ejection plate, a lower ejection plate is arranged on the lower side of the upper ejection plate, and a secondary ejection mechanism is arranged on the lower ejection plate. And a linkage structure is arranged between the upper top plate and the lower top plate. After a product is subjected to injection molding, the external lifting mechanism can drive the upper ejection plate and the straight ejection assembly on the upper ejection plate to apply vertically upward thrust to the product, and the upper ejection plate can drive the lower ejection plate to move upwards together through the linkage structure after moving upwards by a small distance; therefore, pushing force can be applied to the product through the secondary ejection mechanism so that the product can be ejected out conveniently, and the purpose of thoroughly separating the secondary ejection mechanism from the product can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism. Background Art

[0002] Electric vehicle hoods are generally produced by injection molding. Since the side surround of the electric vehicle hood product is in an arc shape, using a conventional straight top structure during ejection will cause the inner wall of the product to remain adhered to the straight top structure after the product is separated from the lower template.

[0003] In order to overcome the shortcomings of the prior art, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses an oblique top pouring mechanism for an electric vehicle hood mold [application number: 202121629212.8], which includes a lower mold plate, the lower mold plate is provided with an outwardly protruding molding insert, the molding insert is provided with a lower molding surface, the lower molding surface is circumferentially arranged along the side wall of the molding insert and has a ring-shaped cross-section, and the molding insert is provided with an oblique top glue injection structure and an internal glue injection structure for internal glue injection. Utility Model Content

[0004] The utility model aims to solve the above problems and provides an electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An injection mold for an electric vehicle head cover with a fixed-distance secondary ejection mechanism comprises an upper template and a lower template, a molding cavity is provided between the upper template and the lower template, an upper top plate driven by an external lifting mechanism is provided on the lower side of the lower template, a straight ejection assembly is provided on the upper top plate, a lower top plate is provided on the lower side of the upper top plate, a secondary ejection mechanism is provided on the lower top plate, and a linkage structure is provided between the upper top plate and the lower top plate.

[0007] In the above-mentioned electric vehicle head hood injection mold with a fixed-distance secondary ejection mechanism, the secondary ejection mechanism includes a plurality of outer inclined ejector rods arranged circumferentially along the outer edge of the molding cavity and a plurality of inner inclined ejector rods connected to the middle of the molding cavity, and the bottoms of the outer inclined ejector rods and the inner inclined ejector rods are connected to the lower ejector plate through a slider connection structure.

[0008] In the above-mentioned electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism, the slider connection structure includes a slider seat fixed on the lower top plate, a connecting slide groove is arranged in the slider seat, and limiting grooves are symmetrically arranged on both sides of the connecting slide groove. A limiting slider is arranged in the slider seat and is slidably connected to the limiting groove. The middle part of the limiting slider has a connecting section with a circular cross-section, and the bottom ends of the outer inclined ejector rod and the inner inclined ejector rod are rotatably matched with the connecting section.

[0009] In the above-mentioned electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism, the upper top plate is provided with a vertical slot hole that slidably cooperates with the slider seat, and the slider seat slidably cooperates with the vertical slot hole.

[0010] In the above-mentioned electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism, the top end of the outer inclined ejector rod is inclined toward the center of the molding cavity.

[0011] In the above-mentioned electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism, the straight ejection assembly includes a plurality of vertically arranged straight ejection rods, and the bottom ends of the straight ejection rods abut against the upper end surface of the upper ejection plate.

[0012] In the above-mentioned electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism, a push rod fixing plate is also provided on the upper side of the upper top plate, and the straight push rod vertically penetrates the push rod fixing plate and slidably cooperates with the push rod fixing plate.

[0013] In the above-mentioned electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism, the linkage structure includes four linkage sliders arranged on both sides of the upper top plate, the inner ends of the linkage sliders are flush with the upper top plate and the ejector rod fixing plate, an upper slider is protruding from the top of the inner end of the linkage slider, and there is a gap between the bottom of the upper slider and the ejector rod fixing plate, the bottom of the inner end of the linkage slider has a groove body, and the side of the lower top plate is fixedly connected to a lower slider inserted into the groove body.

[0014] In the above-mentioned electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism, a bottom plate is arranged at the lower side of the lower mold plate, two side baffles are fixedly connected to the bottom plate, and vertical slide grooves are arranged on the side baffles for sliding cooperation with the linkage slider.

[0015] In the above-mentioned electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism, the external lifting mechanism includes two lifting cylinders fixed on both sides of the upper top plate, and the output shaft ends of the lifting cylinders pass through the upper top plate and are fixedly connected to the bottom plate.

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

[0017] 1. After the product is injection molded, the external lifting mechanism can drive the upper ejector plate and the straight ejector assembly on the upper ejector plate to apply a vertical upward thrust to the product. After the upper ejector plate moves upward for a short distance, it can drive the lower ejector plate to move upward together through the linkage structure, so that the secondary ejector mechanism can apply a thrust to the product to facilitate ejection of the product, and the purpose of completely separating the secondary ejector mechanism and the product can be achieved.

[0018] 2. When the lower top plate moves upward, the slider connection structure can drive the outer inclined ejector rod and the inner inclined ejector rod to move obliquely upward to apply an oblique upward thrust to the product. The slider connection structure can change the angle between the outer inclined ejector rod and the inner inclined ejector rod and the lower top plate when the outer inclined ejector rod and the inner inclined ejector rod move obliquely upward.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0021] Figure 2 It is a structural diagram of the lower template;

[0022] Figure 3 It is a partial structural schematic diagram of the utility model;

[0023] Figure 4 It is a structural diagram of the linkage structure.

[0024] In the figure, an upper template 1, a lower template 2, a molding cavity 3, an external lifting mechanism 4, an upper ejector plate 5, a straight ejector assembly 6, a lower ejector plate 7, a secondary ejector mechanism 8, a linkage structure 9, an external inclined ejector rod 10, an internal inclined ejector rod 11, a slider seat 12, a connecting slide 13, a limit groove 14, a limit slider 15, a vertical slot 16, a straight ejector rod 17, an ejector rod fixing plate 18, a linkage slider 19, an upper slider 20, a slot body 21, a lower slider 22, a bottom plate 23, a side baffle plate 24, a vertical slide 25, and a lifting cylinder 26. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 4 As shown, an injection mold for an electric vehicle head cover with a fixed-distance secondary ejection mechanism includes an upper template 1 and a lower template 2, a molding cavity 3 is provided between the upper template 1 and the lower template 2, an upper top plate 5 driven by an external lifting mechanism 4 is provided at the lower side of the lower template 2, a straight top assembly 6 is provided on the upper top plate 5, a lower top plate 7 is provided at the lower side of the upper top plate 5, a secondary ejection mechanism 8 is provided on the lower top plate 7, and a linkage structure 9 is provided between the upper top plate 5 and the lower top plate 7.

[0026] In the utility model, after the product is injection molded, the external lifting mechanism 4 can drive the upper top plate and the straight top assembly on the upper top plate to apply a vertical upward thrust to the product. After the upper top plate moves upward for a short distance, it can drive the lower top plate to move upward together through the linkage structure 9, so that the secondary ejection mechanism 8 can apply a thrust to the product to facilitate ejection of the product, and the purpose of completely separating the secondary ejection mechanism and the product can be achieved.

[0027] Specifically, the secondary ejection mechanism 8 includes a plurality of outer inclined ejector rods 10 arranged circumferentially along the outer edge of the molding cavity 3 and a plurality of inner inclined ejector rods 11 connected to the middle of the molding cavity 3. The bottoms of the outer inclined ejector rods 10 and the inner inclined ejector rods 11 are connected to the lower ejector plate 7 through a slider connection structure. When the lower ejector plate moves upward, the outer inclined ejector rods 10 and the inner inclined ejector rods 11 can be driven to move obliquely upward through the slider connection structure to apply an oblique upward thrust to the product. The slider connection structure can change the angle between the outer inclined ejector rods 10 and the inner inclined ejector rods 11 and the lower ejector plate when the outer inclined ejector rods 10 and the inner inclined ejector rods 11 move obliquely upward.

[0028] Specifically, the slider connection structure includes a slider seat 12 fixed on the lower top plate 7, a connecting slide groove 13 is arranged in the slider seat 12, and limiting grooves 14 are symmetrically arranged on both sides of the connecting slide groove 13, and a limiting slider 15 is arranged in the slider seat 12 to be slidably connected with the limiting groove 14, and the middle part of the limiting slider 15 has a connecting section with a circular cross section, and the bottom ends of the outer inclined ejector rod 10 and the inner inclined ejector rod 11 are rotatably matched with the connecting section. When the lower top plate drives the outer inclined ejector rod 10 and the inner inclined ejector rod 11 to move upward, the outer inclined ejector rod 10 and the inner inclined ejector rod 11 can rotate with the connecting section of the limiting slider 15, and the limiting slider can also slide in the limiting groove, so that the outer inclined ejector rod 10 and the inner inclined ejector rod 11 can change the angle between the outer inclined ejector rod 10 and the inner inclined ejector rod 11 and the lower top plate when they move obliquely upward.

[0029] Specifically, the upper top plate 5 is provided with a vertical slot 16 that slides with the slider seat 12, and the slider seat 12 slides with the vertical slot 16. The vertical slot can make the upper top plate move upward without affecting the movement of the outer inclined ejector rod 10 and the inner inclined ejector rod 11.

[0030] Preferably, the top end of the outer inclined ejector rod 10 is inclined toward the center of the molding cavity 3 so that it can be displaced in the horizontal direction when ejecting the product, thereby gradually separating the outer wall of the outer inclined ejector rod from the inner wall of the product.

[0031] Specifically, the straight push assembly 6 includes a plurality of vertically arranged straight push rods 17, the bottom ends of which are against the upper end surface of the upper push plate 5. When the upper push plate moves upward, it can drive the straight push rods to move upward to apply a vertical upward thrust to the product.

[0032] Preferably, a push rod fixing plate 18 is further provided on the upper side of the upper top plate 5, and the straight push rod 17 vertically penetrates the push rod fixing plate 18 and slidably cooperates with the push rod fixing plate 18. The straight push rod can be fixed to the upper side of the upper top plate through the push rod fixing plate.

[0033] Specifically, the linkage structure 9 includes four linkage sliders 19 arranged on both sides of the upper top plate 5. The inner ends of the linkage sliders 19 are flush with the upper top plate 5 and the ejector rod fixing plate 18. An upper slider 20 is protruding from the top of the inner end of the linkage slider 19. There is a gap between the bottom of the upper slider 20 and the ejector rod fixing plate 18. The inner end bottom of the linkage slider 19 has a groove 21. The side of the lower top plate 7 is fixedly connected with a lower slider 22 inserted into the groove 21. After the upper top plate moves upward for a distance, the top of the ejector rod fixing plate 18 can abut against the upper slider in the linkage slider 19. At this time, the upper top plate continues to move upward to drive the linkage slider to move upward. The upward movement of the linkage slider can drive the lower slider to move upward, thereby driving the lower top plate to move upward, realizing the secondary ejection of the product.

[0034] Preferably, a bottom plate 23 is provided at the lower side of the lower template 2, and two side baffles 24 are fixedly connected to the bottom plate 23. The side baffles 24 are provided with vertical slide grooves 25 that slide with the linkage slider 19. The vertical slide grooves on the side baffles can limit the linkage slider.

[0035] Specifically, the external lifting mechanism 4 includes two lifting cylinders 26 fixed on both sides of the upper top plate 5, and the output shaft ends of the lifting cylinders 26 pass through the upper top plate 5 and are fixedly connected to the bottom plate 23. The extension of the output shafts of the two lifting cylinders can drive the upper top plate to move vertically upward.

[0036] The working principle of the utility model is as follows: after the product is injection molded, the external lifting mechanism 4 can drive the upper top plate and the straight top assembly on the upper top plate to apply a vertical upward thrust to the product, and after the upper top plate moves upward for a short distance, it can drive the lower top plate to move upward together through the linkage structure 9, so that the secondary ejection mechanism 8 can apply a thrust to the product to facilitate ejection of the product, and the purpose of completely separating the secondary ejection mechanism and the product can be achieved;

[0037] When the lower top plate moves upward, the slider connection structure can drive the outer inclined top rod 10 and the inner inclined top rod 11 to move obliquely upward to apply an oblique upward thrust to the product. The slider connection structure can change the angle between the outer inclined top rod 10 and the inner inclined top rod 11 and the lower top plate when the outer inclined top rod 10 and the inner inclined top rod 11 move obliquely upward. When the lower top plate drives the outer inclined top rod 10 and the inner inclined top rod 11 to move upward, the outer inclined top rod 10 and the inner inclined top rod 11 can rotate with the connection section of the limit slider 15 The limit slider can also slide in the limit groove, so that the outer inclined ejector rod 10 and the inner inclined ejector rod 11 can change the angle between the outer inclined ejector rod 10 and the inner inclined ejector rod 11 and the lower ejector plate when they move obliquely upward. The vertical slot hole can make the upper ejector plate move upward without affecting the movement of the outer inclined ejector rod 10 and the inner inclined ejector rod 11. The top end of the outer inclined ejector rod 10 is inclined toward the center of the molding cavity 3 so that it can be displaced in the horizontal direction when ejecting the product, so that the outer wall of the outer inclined ejector rod is gradually separated from the inner wall of the product.

[0038] When the upper top plate moves upward, it can drive the straight push rod to move upward to apply a vertical upward thrust to the product. The straight push rod can be fixed on the upper side of the upper top plate through the push rod fixing plate. After the upper top plate moves upward for a distance, the top end of the push rod fixing plate 18 can be against the upper slider in the linkage slider 19. At this time, the upper top plate continues to move upward to drive the linkage slider to move upward. The upward movement of the linkage slider can drive the lower slider to move upward, thereby driving the lower top plate to move upward, realizing the secondary ejection of the product. The vertical slide groove on the side baffle can limit the linkage slider, and the extension of the output shafts of the two lifting cylinders can drive the upper top plate to move vertically upward.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0040] Although this article uses the upper template 1, lower template 2, forming cavity 3, external lifting mechanism 4, upper ejector plate 5, straight ejector assembly 6, lower ejector plate 7, secondary ejector mechanism 8, linkage structure 9, external inclined ejector rod 10, internal inclined ejector rod 11, slider seat 12, connecting slide 13, limit groove 14, limit slider 15, vertical slot 16, straight ejector rod 17, ejector rod fixing plate 18, linkage slider 19, upper slider 20, slot body 21, lower slider 22, bottom plate 23, side baffle plate 24, vertical slide 25, lifting cylinder 26 and the like more frequently, these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: A molding cavity (3) is provided between the upper mold plate (1) and the lower mold plate (2); an upper top plate (5) driven by an external lifting mechanism (4) is provided at the lower side of the lower mold plate (2); a straight ejection assembly (6) is provided on the upper top plate (5); a lower top plate (7) is provided at the lower side of the upper top plate (5); a secondary ejection mechanism (8) is provided on the lower top plate (7); and a linkage structure (9) is provided between the upper top plate (5) and the lower top plate (7).

2. The electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism according to claim 1, characterized in that: The secondary ejection mechanism (8) comprises a plurality of outer inclined ejector rods (10) arranged circumferentially along the outer edge of the molding cavity (3) and a plurality of inner inclined ejector rods (11) connected to the middle of the molding cavity (3); the bottoms of the outer inclined ejector rods (10) and the inner inclined ejector rods (11) are connected to the lower ejector plate (7) via a slider connection structure.

3. The electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism according to claim 2, characterized in that: The slider connection structure comprises a slider seat (12) fixed on the lower top plate (7), a connecting slide groove (13) is arranged in the slider seat (12), limiting grooves (14) are symmetrically arranged on both sides of the connecting slide groove (13), a limiting slider (15) is arranged in the slider seat (12) and is slidably connected to the limiting groove (14), the limiting slider (15) has a connecting section with a circular cross-section in the middle, and the bottom ends of the outer inclined top rod (10) and the inner inclined top rod (11) are rotatably matched with the connecting section.

4. The electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism according to claim 3, characterized in that: The upper top plate (5) is provided with a vertical slot hole (16) which is slidably matched with the slider seat (12), and the slider seat (12) is slidably matched with the vertical slot hole (16).

5. The electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism according to claim 2, characterized in that: The top end of the outer inclined ejector rod (10) is inclined toward the center of the molding cavity (3).

6. The electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism according to claim 3, characterized in that: The straight top assembly (6) comprises a plurality of vertically arranged straight top rods (17), the bottom ends of the straight top rods (17) abutting against the upper end surface of the upper top plate (5).

7. The electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism according to claim 6, characterized in that: A push rod fixing plate (18) is also provided on the upper side of the upper top plate (5), and the straight push rod (17) vertically penetrates the push rod fixing plate (18) and is slidably matched with the push rod fixing plate (18).

8. The electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism according to claim 7, characterized in that: The linkage structure (9) comprises four linkage sliders (19) which are arranged on both sides of the upper top plate (5). The inner ends of the linkage sliders (19) are flush with the upper top plate (5) and the top rod fixing plate (18). An upper slider (20) is protruding from the top of the inner end of the linkage slider (19). There is a gap between the bottom of the upper slider (20) and the top rod fixing plate (18). The inner end bottom of the linkage slider (19) has a groove body (21). The side of the lower top plate (7) is fixedly connected with a lower slider (22) which is inserted into the groove body (21).

9. The electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism according to claim 8, characterized in that: A bottom plate (23) is arranged at the lower side of the lower template (2), two side baffles (24) are fixedly connected to the bottom plate (23), and a vertical slide groove (25) is arranged on the side baffle (24) for sliding cooperation with the linkage slider (19).

10. The electric vehicle head cover injection mold with a fixed-distance secondary ejection mechanism according to claim 9, characterized in that: The external lifting mechanism (4) comprises two lifting cylinders (26) fixed on both sides of the upper top plate (5), and the output shaft ends of the lifting cylinders (26) penetrate the upper top plate (5) and are fixedly connected to the bottom plate (23).

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