Injection mold for charging gun of electric vehicle

Abstract

The invention discloses an injection mold for a charging gun of an electric vehicle, and belongs to the technical field of injection molds. The upper end of the lower base is fixedly connected with a lower die, and a first groove is formed in the upper end of the lower die. The upper end of the lower base is connected with an upper base; the lower end of the upper base is fixedly connected with an upper die; the upper end of the lower die is connected with a die forming mechanism; the side wall of the lower base is connected with a multi-stage demolding mechanism; a sprue gate is formed in the upper end of the upper base; the multi-stage demolding mechanism comprises a driving push cylinder and a multi-stage demolding assembly, and the upper end of the lower base is fixedly connected with the driving push cylinder; output ends of the driving push cylinders are fixedly connected with the lower end of the upper base; the side wall of the lower base is connected with a multi-stage demolding assembly. By means of the mode, after the workpiece is cooled and formed, the output end of the driving push cylinder pushes the upper base to drive the upper mold to move upwards, multi-stage demolding is achieved through the multi-stage demolding assembly, demolding force concentration is avoided through multi-stage demolding, and therefore workpiece damage caused by demolding of a product is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and in particular to an injection mold for an electric vehicle charging gun. Background Art

[0002] The field of injection mold technology occupies a key position in today's manufacturing industry and has broad prospects. With the vigorous development of many industries such as automobiles, electronics, medical care, and home appliances, the demand for plastic products continues to rise, which has brought unprecedented opportunities for injection mold technology. The charging gun is a tool used to charge new energy vehicles. In order to facilitate the use of operators, it is designed to be shaped like a gun. The outer shell of the charging gun is usually made of plastic. Therefore, when processing the charging gun, an injection mold is needed to process the outer shell of the charging gun.

[0003] Chinese patent CN208324056U discloses an injection mold for an electric vehicle charging gun. During the injection molding process of the mold, one end of the lower mold 2 is first tightly fitted to the inner wall surface of the fixing seat 1, and then the upper mold 10 is fixed to the lower mold 2 through the snap connection formed between the groove 16 and the first protrusion 6, and at the same time, the two are fixed again by the mutual attraction of the opposite magnetic properties between the magnetic column 17 and the magnetic strip 7. Then, the upper mold 10 is fixed by the downward movement of the extrusion plate 12. After the fixing is completed, the material is transferred to the interior of the upper mold 10 and the lower mold 2 through the injection tube 21, and the opening area of ​​the injection tube 21 is adjusted by the rotation of the clamping column 19. The mold also has the following problems:

[0004] After the injection molding of the mold is completed, the upper mold 10 is fixed to the lower mold 2 by the snap connection formed between the groove 16 and the first protrusion 6, and the mutual attraction between the opposite magnetic properties of the magnetic column 17 and the magnetic strip 7 performs a secondary fixation between the above two. During the demolding process, it is necessary to open the fixing structure one by one, which makes it inconvenient to separate the upper mold and the lower mold, reducing the demolding efficiency.

[0005] Based on this, the present invention designs an injection mold for an electric vehicle charging gun to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides an injection mold for an electric vehicle charging gun.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An injection mold for an electric vehicle charging gun, comprising a lower base;

[0009] The upper end of the lower base is fixedly connected to the lower mold, and the upper end of the lower mold is provided with a groove 1; the upper end of the lower base is connected to the upper base; the lower end of the upper base is fixedly connected to the upper mold, and the lower end of the upper mold is provided with a groove 2 for matching the groove 1 to form the workpiece; the upper end of the lower mold is connected to a mold forming mechanism for assisting the workpiece molding; the side wall of the lower base is connected to a multi-stage demoulding mechanism for demoulding; the upper end of the upper base is provided with a pouring port for injection molding;

[0010] The multi-stage demoulding mechanism includes a driving push cylinder and a multi-stage demoulding component. The upper end of the lower base is fixedly connected to multiple driving push cylinders; the output end of the driving push cylinder is fixedly connected to the lower end of the upper base; the side wall of the lower base is connected to a multi-stage demoulding component for multi-stage demoulding.

[0011] Furthermore, the multi-stage demoulding assembly includes a first demoulding assembly, a second demoulding assembly and a third demoulding assembly, wherein the first demoulding assembly is connected to the rear side of the left end of the lower base; the second demoulding assembly is connected to the front end of the lower base; and the third demoulding assembly is connected to the right end of the lower base.

[0012] Furthermore, the first demolding assembly includes a first push cylinder, a first connecting block and a first demolding member, the first push cylinder is fixedly connected to the rear side of the left end of the lower base; the output end of the first push cylinder is fixedly connected to the first connecting block; the front end of the first connecting block is fixedly connected to the first demolding member corresponding to the first recessed portion of the workpiece.

[0013] Furthermore, the second demolding assembly includes a second push cylinder, a second connecting block and a second demolding member, the second push cylinder is fixedly connected to the front end of the lower base; the second push cylinder output end is fixedly connected to the second connecting block; the rear end of the second connecting block is fixedly connected to the second demolding member corresponding to the second recessed portion of the workpiece.

[0014] Furthermore, the third demolding assembly includes a third push cylinder, a third connecting block and a third demolding piece. The third push cylinder is fixedly connected to the right end of the lower base; the output end of the third push cylinder is fixedly connected to the third connecting block; the left end of the third connecting block is fixedly connected to the third demolding piece corresponding to the third recessed portion of the workpiece.

[0015] Furthermore, the mold forming mechanism includes a thread forming part 1, a thread forming part 2, a protrusion 1 and a protrusion 2; the upper end of the lower mold is fixedly connected with the thread forming part 1, and the lower end of the upper mold is fixedly connected with the thread forming part 2 which cooperates with the thread forming part 1 to form the threaded part of the workpiece; the upper end of the lower mold is fixedly connected with the protrusion 1, and the lower end of the upper mold is fixedly connected with the protrusion 2 which cooperates with the protrusion 1 to form the fourth recessed part of the workpiece.

[0016] Furthermore, a yield groove 1 corresponding to the first connecting block is provided on the left side of the lower end of the upper base.

[0017] Furthermore, a second clearance groove corresponding to the second connecting block is provided on the front side of the lower end of the upper base.

[0018] Furthermore, a third clearance groove corresponding to the third connecting block is provided on the right side of the lower end of the upper base.

[0019] Furthermore, the first demoulding member, the second demoulding member and the third demoulding member are all made of high temperature resistant zinc alloy.

[0020] Compared with the prior art, the present invention has the following beneficial effects: groove one, groove two and a mold forming mechanism cooperate to form a molding cavity for workpiece molding, and injection molding is performed into the molding cavity through a pouring port. After the workpiece is cooled and formed, the upper base is driven by the output end of the push cylinder to drive the upper mold to move upward, and multi-stage demolding is achieved through a multi-stage demolding assembly. Groove one, groove two and a mold forming mechanism no longer form a molding cavity, and the molded workpiece is directly exposed, thereby achieving rapid demolding of the molded workpiece. Multi-stage demolding avoids concentration of demolding force, thereby reducing damage to the workpiece caused by demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 The three-dimensional workpiece of the present invention Figure 1 ;

[0023] Figure 2 The three-dimensional workpiece of the present invention Figure 2 ;

[0024] Figure 3 A three-dimensional injection mold of an electric vehicle charging gun of the present invention Figure 1 ;

[0025] Figure 4 It is a front view of an injection mold of an electric vehicle charging gun of the present invention;

[0026] Figure 5 An exploded view of an injection mold for an electric vehicle charging gun of the present invention;

[0027] Figure 6 A three-dimensional injection mold of an electric vehicle charging gun of the present invention Figure 2 ;

[0028] Figure 7 A three-dimensional diagram of the upper base and the upper mold of the present invention;

[0029] Figure 8A three-dimensional diagram of the lower mold of the present invention;

[0030] Fig. 9 A three-dimensional injection mold of an electric vehicle charging gun of the present invention Figure 3 .

[0031] The numbers in the figure represent:

[0032] 1. Workpiece; 11. Lower base; 12. Upper base; 13. Lower mold; 131. Groove 1; 14. Upper mold; 141. Groove 2; 15. Casting port; 2. Mold forming mechanism; 21. First recessed portion; 22. Second recessed portion; 23. Third recessed portion; 24. Threaded portion; 25. Fourth recessed portion; 241. Threaded forming portion 1; 242. Threaded forming portion 2; 251. Protruding portion 1; 252. Protruding portion 2 The second demoulding part; 3. Multi-stage demoulding mechanism; 31. Driving push cylinder; 32. Multi-stage demoulding assembly; 321. First push cylinder; 322. First connecting block; 323. First demoulding member; 324. Second push cylinder; 325. Second connecting block; 326. Second demoulding member; 327. Third push cylinder; 328. Third connecting block; 329. Third demoulding member; 41. First clearance groove; 42. Second clearance groove; 43. Third clearance groove. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0035] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 9 , an injection mold for an electric vehicle charging gun, comprising a lower base 11;

[0036] The upper end of the lower base 11 is fixedly connected to a lower mold 13, and a groove 131 is provided at the upper end of the lower mold 13; the upper end of the lower base 11 is connected to an upper base 12; the lower end of the upper base 12 is fixedly connected to an upper mold 14, and a groove 2 141 is provided at the lower end of the upper mold 14 to match the groove 131 to form the workpiece 1; the upper end of the lower mold 13 is connected to a mold forming mechanism 2 for assisting the molding of the workpiece 1; the side wall of the lower base 11 is connected to a multi-stage demoulding mechanism 3 for demoulding; the upper end of the upper base 12 is provided with a pouring port 15 for injection molding;

[0037] The multi-stage demoulding mechanism 3 includes a driving push cylinder 31 and a multi-stage demoulding component 32. The upper end of the lower base 11 is fixedly connected to multiple driving push cylinders 31; the output end of the driving push cylinder 31 is fixedly connected to the lower end of the upper base 12; the side wall of the lower base 11 is connected to a multi-stage demoulding component 32 for multi-stage demoulding.

[0038] In the present invention, groove one 131, groove two 141 and the mold forming mechanism 2 cooperate to form a molding cavity for molding the workpiece 1, and the molding cavity is injected through the pouring port 15. When the workpiece 1 is cooled and formed, the upper base 12 is driven by the output end of the push cylinder 31 to drive the upper mold 14 to move upward, and multi-stage demolding is achieved through the multi-stage demolding component 32. The groove one 131, groove two 141 and the mold forming mechanism 2 no longer constitute a molding cavity, and the molded workpiece 1 is directly exposed, thereby realizing rapid demolding of the molded workpiece 1. Multi-stage demolding avoids concentration of demolding force, thereby reducing damage to the workpiece 1 caused by demolding.

[0039] Embodiment 2: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 9 The multi-stage demoulding assembly 32 includes a first push cylinder 321, a first connecting block 322, a first demoulding member 323, a second push cylinder 324, a second connecting block 325, a second demoulding member 326, a third push cylinder 327, a third connecting block 328 and a third demoulding member 329. The first push cylinder 321 is fixedly connected to the rear side of the left end of the lower base 11; the output end of the first push cylinder 321 is fixedly connected to the first connecting block 322; the front end of the first connecting block 322 is fixedly connected to the first demoulding member 323 corresponding to the first recessed portion 21 of the workpiece 1; the second push cylinder 324 is fixedly connected to the front end of the lower base 11; the output end of the second push cylinder 324 is fixedly connected to the second connecting block 325; the rear end of the second connecting block 325 is fixedly connected to the first recessed portion 21 of the workpiece 1 A second demolding member 326 corresponding to the second recessed portion 22 of workpiece 1; a third push cylinder 327 is fixedly connected to the right end of the lower base 11; a third connecting block 328 is fixedly connected to the output end of the third push cylinder 327; a third demolding member 329 corresponding to the third recessed portion 23 of the workpiece 1 is fixedly connected to the left end of the third connecting block 328; a clearance groove 41 corresponding to the first connecting block 322 is provided on the left side of the lower end of the upper base 12; a clearance groove 42 corresponding to the second connecting block 325 is provided on the front side of the lower end of the upper base 12; a clearance groove 43 corresponding to the third connecting block 328 is provided on the right side of the lower end of the upper base 12; the first demolding member 323, the second demolding member 326 and the third demolding member 329 are all made of high-temperature resistant zinc alloy.

[0040] In the present invention, when the output end of the driving push cylinder 31 pushes the upper base 12 to drive the upper mold 14 to move upward, the clearance groove 1 41 is separated from the first connecting block 322, the clearance groove 2 42 is separated from the second connecting block 325, and the clearance groove 3 43 is separated from the third connecting block 328. The output end of the first push cylinder 321 drives the first demolding member 323 to move to the left side through the first connecting block 322. At this time, the output end of the second push cylinder 324 drives the second demolding member 326 to move forward through the second connecting block 325. Finally, the third push cylinder 327 drives the third demolding member 329 to move to the right side through the third connecting block 328, thereby realizing multi-stage demolding of the formed workpiece 1, avoiding concentration of demolding force, and reducing damage to the workpiece 1 caused by demolding.

[0041] Embodiment 3: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 9 The mold forming mechanism 2 includes a thread forming part 1 241, a thread forming part 242, a protrusion 1 251 and a protrusion 252. The upper end of the lower mold 13 is fixedly connected with the thread forming part 1 241, and the lower end of the upper mold 14 is fixedly connected with the thread forming part 242 that cooperates with the thread forming part 1 241 to form the threaded part 24 of the workpiece 1; the upper end of the lower mold 13 is fixedly connected with the protrusion 1 251, and the lower end of the upper mold 14 is fixedly connected with the protrusion 252 that cooperates with the protrusion 1 251 to form the fourth recessed part 25 of the workpiece 1.

[0042] In the present invention, groove 1 131 , groove 2 141 , thread forming part 1 241 , thread forming part 242 , protrusion 1 251 and protrusion 2 252 cooperate to form a molding cavity of workpiece 1 , and the molding cavity is injection molded through the pouring port 15 , thereby realizing injection molding of workpiece 1 .

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An injection mold for an electric vehicle charging gun, comprising a lower base (11), characterized in that: It also includes an upper base (12), a lower mold (13), an upper mold (14), a mold forming mechanism (2) and a multi-stage demoulding mechanism (3); The upper end of the lower base (11) is fixedly connected to a lower mold (13), and a groove 1 (131) is provided at the upper end of the lower mold (13); the upper end of the lower base (11) is connected to an upper base (12); the lower end of the upper base (12) is fixedly connected to an upper mold (14), and a groove 2 (141) is provided at the lower end of the upper mold (14) for matching the groove 1 (131) to form the workpiece (1); the upper end of the lower mold (13) is connected to a mold forming mechanism (2) for assisting the workpiece (1) in forming; the side wall of the lower base (11) is connected to a multi-stage demoulding mechanism (3) for demoulding; the upper end of the upper base (12) is provided with a pouring port (15) for injection molding; The multi-stage demoulding mechanism (3) comprises a driving push cylinder (31) and a multi-stage demoulding assembly (32); the upper end of the lower base (11) is fixedly connected to a plurality of driving push cylinders (31); the output end of the driving push cylinder (31) is fixedly connected to the lower end of the upper base (12); and the side wall of the lower base (11) is connected to the multi-stage demoulding assembly (32) used for multi-stage demoulding.

2. The injection mold for the electric vehicle charging gun according to claim 1, characterized in that: The multi-stage demoulding assembly (32) comprises a first demoulding assembly, a second demoulding assembly and a third demoulding assembly, wherein the first demoulding assembly is connected to the rear side of the left end of the lower base (11); the second demoulding assembly is connected to the front end of the lower base (11); and the third demoulding assembly is connected to the right end of the lower base (11).

3. The injection mold for the electric vehicle charging gun according to claim 2, characterized in that: The first demoulding assembly comprises a first push cylinder (321), a first connecting block (322) and a first demoulding member (323); the first push cylinder (321) is fixedly connected to the rear side of the left end of the lower base (11); the output end of the first push cylinder (321) is fixedly connected to the first connecting block (322); the front end of the first connecting block (322) is fixedly connected to the first demoulding member (323) corresponding to the first recessed portion (21) of the workpiece (1).

4. The injection mold for the electric vehicle charging gun according to claim 3, characterized in that: The second demoulding assembly comprises a second push cylinder (324), a second connecting block (325) and a second demoulding member (326); the second push cylinder (324) is fixedly connected to the front end of the lower base (11); the output end of the second push cylinder (324) is fixedly connected to the second connecting block (325); the rear end of the second connecting block (325) is fixedly connected to the second demoulding member (326) corresponding to the second recessed portion (22) of the workpiece (1).

5. The injection mold for the electric vehicle charging gun according to claim 4, characterized in that: The third demoulding assembly comprises a third push cylinder (327), a third connecting block (328) and a third demoulding member (329); the third push cylinder (327) is fixedly connected to the right end of the lower base (11); the output end of the third push cylinder (327) is fixedly connected to the third connecting block (328); and the left end of the third connecting block (328) is fixedly connected to the third demoulding member (329) corresponding to the third recessed portion (23) of the workpiece (1).

6. The injection mold for the electric vehicle charging gun according to claim 1, characterized in that: The mold forming mechanism (2) comprises a thread forming part 1 (241), a thread forming part 2 (242), a protruding part 1 (251) and a protruding part 2 (252); the upper end of the lower mold (13) is fixedly connected to the thread forming part 1 (241), and the lower end of the upper mold (14) is fixedly connected to the thread forming part 2 (242) for cooperating with the thread forming part 1 (241) to form the threaded part (24) of the workpiece (1); the upper end of the lower mold (13) is fixedly connected to the protruding part 1 (251), and the lower end of the upper mold (14) is fixedly connected to the protruding part 2 (252) for cooperating with the protruding part 1 (251) to form the fourth recessed part (25) of the workpiece (1).

7. The injection mold for the electric vehicle charging gun according to claim 3, characterized in that: A clearance groove (41) corresponding to the first connection block (322) is provided on the left side of the lower end of the upper base (12).

8. The injection mold for the electric vehicle charging gun according to claim 4, characterized in that: A second clearance groove (42) corresponding to the second connecting block (325) is provided at the front side of the lower end of the upper base (12).

9. The injection mold for the electric vehicle charging gun according to claim 5, characterized in that: A third clearance groove (43) corresponding to the third connecting block (328) is provided on the right side of the lower end of the upper base (12).

10. The injection mold for the electric vehicle charging gun according to claim 5, characterized in that: The first demoulding component (323), the second demoulding component (326) and the third demoulding component (329) are all made of a high temperature resistant zinc alloy.

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