Injection mold and charging plug production equipment

Abstract

The present invention discloses an injection mold and a charging plug production device. The injection mold includes an upper mold mechanism, a lower mold mechanism and a telescopic component. The upper mold base plate is provided with a first cavity, the lower mold base plate is provided with an injection hole and a second cavity corresponding to the first cavity, the injection hole is connected to the second cavity, and a receiving groove for inserting a pin is provided in the second cavity. The telescopic component is arranged between the upper mold base plate and the lower mold base plate. The upper mold base plate and the lower mold base plate can be selectively covered and separated by the telescopic component. When the upper mold base plate and the lower mold base plate are covered, the first cavity and the second cavity are docked to form an injection cavity. When the upper mold base plate and the lower mold base plate are separated, the injection molded part in the injection cavity is separated from the second cavity. The injection mold of the present invention can quickly cover and open the mold, and the covering process does not require manual alignment, which effectively avoids injection failure caused by alignment deviation, and is suitable for synchronously inserting the pin and taking out the injection molded part in the mold when the mold is separated.

Description

Technical Field

[0001] The present invention relates to the field of manufacturing of charging plugs, and in particular to an injection mold and charging plug production equipment. Background Art

[0002] In the traditional production process of the charging plug shell, the pins need to be manually taken out from the feeding part and then inserted into the corresponding molds one by one for the injection molding process to obtain the corresponding products. Finally, the products are taken out of the molds and placed on the conveyor belt for the next process. The operation process involves multiple assembly line stations, with low work efficiency, high work intensity, and time-consuming and labor-intensive. In addition, the upper mold and the lower mold of the existing mold are in a completely separated state. In each mold closing process, the upper mold and the lower mold need to be manually aligned and closed. The alignment process is cumbersome and injection molding failure is easy to occur due to alignment deviation. In addition, due to the small size of the pin, the operator is prone to visual fatigue when inserting the pin into the mold, which leads to misoperation and seriously affects the yield rate.

[0003] Therefore, injection molds and charging plug production equipment are urgently needed to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide an injection mold, which can quickly close and open the mold, does not require manual alignment during the closing process, effectively avoids injection failure due to alignment deviation, and is suitable for simultaneously inserting pins and removing injection molded parts in the mold when the mold is separated.

[0005] Another object of the present invention is to provide a charging plug production device having the above-mentioned injection mold, which realizes the transfer of pin pins from the feeding mechanism to the mold and the transfer of injection molded parts from the mold to the conveyor belt in a fully automated manner, effectively improving productivity and yield rate.

[0006] To achieve this object, on the one hand, the present invention adopts the following technical solutions:

[0007] An injection mold, which includes an upper mold mechanism, a lower mold mechanism and a telescopic component, the upper mold mechanism and the lower mold mechanism are arranged opposite to each other, the upper mold mechanism includes an upper mold base plate, the lower mold mechanism includes a lower mold base plate, the upper mold base plate is provided with a first cavity, the lower mold base plate is provided with an injection hole and a second cavity corresponding to the first cavity, the injection hole is connected to the second cavity, and the second cavity is provided with a accommodating groove for inserting a pin needle, the telescopic component is arranged between the upper mold base plate and the lower mold base plate, the upper mold base plate and the lower mold base plate can be selectively covered and separated by the telescopic component, when the upper mold base plate and the lower mold base plate are covered, the first cavity and the second cavity are connected to form an injection cavity, when the upper mold base plate and the lower mold base plate are separated, the injection molded part in the injection cavity is separated from the second cavity.

[0008] Preferably, the telescopic assembly includes a plurality of telescopic joint rods, the upper mold substrate and the lower mold substrate are arranged in parallel, one end of the telescopic joint rod is erected on the upper mold substrate, and the other end is erected on the lower mold substrate, and the telescopic joint rod is perpendicular to the plane where the upper mold substrate and the lower mold substrate are located.

[0009] Preferably, the telescopic rods are arranged at intervals along the circumference of the upper mold base plate and the lower mold base plate.

[0010] Preferably, the upper mold mechanism further comprises two upper mold units arranged opposite to each other, the two upper mold units are slidably connected to the upper mold base plate, and the two upper mold units move toward each other to be spliced ​​to form the first cavity.

[0011] Preferably, the upper mold mechanism also includes two relatively arranged limit blocks, the limit blocks are arranged on the upper mold base plate, the two upper mold units are arranged between the two limit blocks and are limited to sliding between the two limit blocks, and a first buffer spring is provided between the limit block and the corresponding upper mold unit, and the first buffer spring constantly provides an elastic force to push the upper mold unit toward the other upper mold unit.

[0012] Preferably, the upper mold mechanism also includes an upper mold base plate, a guide column and a second buffer spring. The upper mold base plate is arranged on the side of the upper mold substrate away from the lower mold substrate. The guide column is upright on the upper mold base plate, and its free end can pass through the upper mold substrate. The second buffer spring is passed through the guide column and abuts between the upper mold base plate and the upper mold substrate. The lower mold substrate is provided with a guide hole for the guide column to be inserted into the position.

[0013] Preferably, the upper mold base plate is provided with a positioning groove, and the lower mold base plate is provided with a positioning boss matching with the positioning groove.

[0014] Preferably, the lower mold mechanism also includes a lower mold bottom plate and a nozzle assembly, the lower mold bottom plate is arranged on the side of the lower mold base plate away from the upper mold base plate, the nozzle assembly is arranged between the lower mold bottom plate and the lower mold base plate, the lower mold bottom plate is provided with an injection hole, the injection hole is connected to the injection end of the nozzle assembly, and the injection hole is connected to the liquid outlet end of the nozzle assembly.

[0015] Preferably, the depth of the first cavity is greater than the depth of the second cavity.

[0016] The present invention has at least the following beneficial effects:

[0017] The upper mold base plate and the lower mold base plate of the present invention can be selectively covered and separated by a telescopic component. On the one hand, the telescopic component plays a connecting role, so that an integrated structure with a telescopic function is formed between the upper mold base plate and the lower mold base plate, and the upper mold base plate and the lower mold base plate can be used as a whole, avoiding the increase of the covering and alignment process due to the separation of the upper mold base plate and the lower mold base plate; on the other hand, the telescopic component plays a guiding role. Since the telescopic component is arranged between the upper mold base plate and the lower mold base plate, the upper mold base plate and the lower mold base plate have a certain covering and separation path on the telescopic path formed by the telescopic component. Under the action of the telescopic component, the upper mold base plate and the lower mold base plate can achieve a stable covering and alignment effect, avoiding injection molding failure caused by artificial alignment deviation, and effectively improving the yield rate; on the other hand, when the upper mold base plate and the lower mold base plate are separated by the telescopic component, a certain space is formed between the upper mold base plate and the lower mold base plate, which is convenient for a robot jig to enter between the upper mold base plate and the lower mold base plate to synchronously perform the process of inserting pins and taking out injection molded parts, thereby greatly improving work efficiency.

[0018] On the other hand, the present invention also adopts the following technical solutions:

[0019] A charging plug production device comprises a feeding mechanism, a robot jig, an injection molding machine, a conveyor belt and the injection mold as described above, wherein the feeding mechanism provides the pin needle, the injection molding machine is used to perform injection molding operations on the injection mold, the robot jig is used to obtain the pin needle and transfer the pin needle to the receiving groove, and is used to transfer the injection molded part to the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the charging plug production equipment of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the injection mold of the present invention;

[0022] Figure 3 yes Figure 2 Schematic diagram of the decomposition of

[0023] Figure 4It is a structural schematic diagram of the upper mold mechanism of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the lower mold mechanism of the present invention.

[0025] In the figure:

[0026] 100. Injection mold; 10. Upper mold mechanism; 11. Upper mold substrate; 111. First cavity; 12. Upper mold unit; 13. Limit block; 14. Upper mold bottom plate; 15. Guide column; 16. Second buffer spring; 17. Positioning groove; 20. Lower mold mechanism; 21. Lower mold substrate; 212. Second cavity; 213. Accommodating groove; 214. Guide hole; 215. Positioning boss; 22. Lower mold bottom plate; 221. Injection hole; 23. Water outlet assembly; 30. Telescopic rod; 200. Feeding mechanism; 300. Robot fixture; 400. Conveyor belt; 1000. Charging plug production equipment. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] refer to Figure 1 The charging plug production equipment 1000 of this embodiment includes a feeding mechanism 200, a robot fixture 300, an injection molding machine (not shown), a conveyor belt 400 and an injection mold 100, wherein the feeding mechanism 200 sequentially outputs pin needles with specific postures by means of vibration or the like, the robot fixture 300 can move freely along the X-axis direction, the Y-axis direction and the Z-axis direction, the robot fixture 300 moves to the station where the feeding mechanism 200 is located, and obtains the pin needles by clamping or the like, thereby completing the pin needle removal process. The injection mold 100 can be selectively covered and separated. When the injection mold 100 is covered, the injection molding machine can perform an injection molding operation on the injection mold 100 to injection-mold an injection molded part with a pin needle in the injection mold 100; when the injection mold 100 is separated, the manipulator fixture 300 moves to the station where the injection mold 100 is located and extends into the injection mold 100, and synchronously performs the pin needle insertion process and the injection molded part removal process on the injection mold 100. The purpose of the pin needle insertion process is to replenish the pin needle in the injection mold 100 for the next injection molding, and the purpose of the injection molded part removal process is to remove the molded injection molded part for the next injection molding. After the manipulator fixture 300 obtains the injection molded part, it moves to the station where the conveyor belt 400 is located, and places the injection molded part on the conveyor belt 400 so that the conveyor belt 400 can transport the injection molded part to the next process. Repeat the above process to complete the fully automated production of the charging plug. The specific structure of the injection mold 100 of this embodiment will be described in detail below.

[0032] refer to Figure 1-Figure 5 The injection mold 100 of this embodiment includes an upper mold mechanism 10, a lower mold mechanism 20 and a telescopic assembly, and the upper mold mechanism 10 and the lower mold mechanism 20 are arranged opposite to each other. Among them, the upper mold mechanism 10 includes an upper mold base plate 11, and the lower mold mechanism 20 includes a lower mold base plate 21. The upper mold base plate 11 is provided with a first cavity 111, and the lower mold base plate 21 is provided with an injection hole and a second cavity 212 corresponding to the first cavity 111. The injection hole is connected to the second cavity 212, and the second cavity 212 is provided with a receiving groove 213 for inserting a pin.

[0033] The telescopic assembly is arranged between the upper mold substrate 11 and the lower mold substrate 21. The upper mold substrate 11 and the lower mold substrate 21 can be selectively covered and separated by the telescopic assembly. When the upper mold substrate 11 and the lower mold substrate 21 are covered, the first cavity 111 and the second cavity 212 are connected to form an injection cavity. The injection molding machine performs a liquid injection process on the injection cavity through the injection hole. After the liquid is cooled, a solid injection molded part can be formed in the injection cavity. When the upper mold substrate 11 and the lower mold substrate 21 are separated, the injection molded part injection molded in the injection cavity is separated from the second cavity 212. Here, the upper mold substrate 11 and the lower mold substrate 21 are both metal plates, which are resistant to high temperatures, and the injection molded parts injection molded therein will not have a substantial connection with the upper mold substrate 11 and the lower mold substrate 21, and it is easy to separate the injection molded parts from the injection cavity.

[0034] Preferably, in order to ensure that the injection molded part always remains in the first cavity 111 when the upper mold substrate 11 and the lower mold substrate 21 are separated, the depth of the first cavity 111 of this embodiment is greater than the depth of the second cavity 212, and most of the injection molded part is molded in the first cavity 111. It can be understood that the second cavity 212 only provides a portion for accommodating the pin needle, and the main part of the injection molded part is molded in the first cavity 111, so the injection molded part can be retained in the first cavity 111 when the upper mold substrate 11 and the lower mold substrate 21 are separated.

[0035] Preferably, the telescopic assembly of this embodiment includes a plurality of telescopic joint rods 30, the upper mold substrate 11 and the lower mold substrate 21 are arranged in parallel, one end of the telescopic joint rod 30 is erected on the upper mold substrate 11, and the other end is erected on the lower mold substrate 21, and the telescopic joint rod 30 is perpendicular to the plane where the upper mold substrate 11 and the lower mold substrate 21 are located. Preferably, the telescopic joint rods 30 are arranged at intervals along the circumference of the upper mold substrate 11 and the lower mold substrate 21. It can be understood that the telescopic joint rods 30 are arranged at intervals along the circumferential edge positions of the upper mold substrate 11 and the lower mold substrate 21, and each telescopic joint rod 30 acts together between the upper mold substrate 11 and the lower mold substrate 21, and provides stable telescopic support for the edge positions of the upper mold substrate 11 and the lower mold substrate 21, so as to ensure that each corresponding point of the upper mold substrate 11 and the lower mold substrate 21 can be synchronously covered and separated.

[0036] It should be noted that in this embodiment, the telescopic rod 30 assists the upper mold base plate 11 and the lower mold base plate 21 in covering and separating. Since the telescopic rod 30 cannot be automatically extended and retracted, it is necessary to provide a covering / separating force to the upper mold base plate 11 and / or the lower mold base plate 21. Of course, in other embodiments, the telescopic assembly can use a hydraulic telescopic rod with a driving cylinder, and the driving cylinder drives the extension and retraction of the hydraulic telescopic rod, thereby driving the upper mold base plate 11 and the lower mold base plate 21 to actively cover and separate, which will not be described in detail here.

[0037] refer to Figure 1-Figure 5In order to facilitate the manipulator fixture 300 to smoothly remove the injection molded part from the first cavity 111, the upper mold mechanism 10 of this embodiment also includes two upper mold monomers 12 arranged oppositely, the two upper mold monomers 12 are slidably connected to the upper mold base plate 11, and the two upper mold monomers 12 move toward each other to form the first cavity 111. The upper mold monomer 12 can be slidably connected to the upper mold base plate 11 by means of a slide rail, a slideway or a slide groove. Preferably, the upper mold mechanism 10 also includes two relatively arranged limit blocks 13, the limit block 13 is fixed on the upper mold base plate 11, and the two upper mold monomers 12 are arranged between the two limit blocks 13 and are limited to sliding between the two limit blocks 13. Here, the two upper mold monomers 12 are limited to slide between the two limit blocks 13. It can be understood that the two limit blocks 13 provide a gap for only a slight movement of the two upper mold monomers 12, such as a slight movement of any upper mold monomer 12 to generate a slight gap between the two upper mold monomers 12, so that the injection molded part can be separated from the first cavity 111.

[0038] Furthermore, a first buffer spring is provided between the limit block 13 and the corresponding upper mold monomer 12, and the first buffer spring constantly provides elastic force to push the upper mold monomer 12 toward the other upper mold monomer 12. At this time, the two upper mold monomers 12 under normal conditions are tightly spliced ​​together to form the first cavity 111 under the action of the corresponding first buffer spring. When the robot jig 300 needs to take out the injection molded part, the robot jig 300 first clamps the injection molded part, and then applies a thrust toward any upper mold monomer 12 to make the upper mold monomer 12 move slightly, thereby forming a slight gap between the two upper mold monomers 12, so that the injection molded part is separated from the first cavity 111, so that the robot jig 300 can take out the injection molded part.

[0039] In order to buffer the impact force of the collision between the upper mold substrate 11 and the lower mold substrate 21 during the covering process, which may affect the alignment of the two substrates, the upper mold mechanism 10 also includes an upper mold base plate 14, a guide column 15 and a second buffer spring 16. The upper mold base plate 14 is arranged on the side of the upper mold substrate 11 away from the lower mold substrate 21. The guide column 15 is vertically arranged on the upper mold base plate 14, and its free end can vertically pass through the upper mold substrate 11. The second buffer spring 16 is passed through the guide column 15 and abuts between the upper mold base plate 14 and the upper mold substrate 11. The lower mold substrate 21 is provided with a guide hole 214 for the guide column 15 to be inserted in position. During the process of covering the upper mold substrate 11 and the lower mold substrate 21, the guide column 15 and the guide hole 214 assist the telescopic joint rod 30 to align the upper mold substrate 11 and the lower mold substrate 21. During the process of inserting the guide column 15 into the guide hole 214, the upper mold substrate 11 gradually covers the lower mold substrate 21. At this time, an impact force will be instantly generated between the two substrates. Under the action of the second buffer spring 16, the upper mold substrate 11 moves in the opposite direction along the covering direction to move away from the lower mold substrate 21. The second buffer spring 16 is compressed and converts the above impact force into the elastic force of the second buffer spring 16. Then, the second buffer spring 16 releases the elastic force and pushes the upper mold substrate 11 to slowly cover the lower mold substrate 21. Through the above settings, the alignment of the upper mold substrate 11 and the lower mold substrate 21 can be effectively guaranteed, and the service life of the upper mold substrate 11 and the lower mold substrate 21 can be extended.

[0040] In order to further prevent the upper mold substrate 11 and the lower mold substrate 21 from accidentally shifting after they are covered, a positioning structure is provided between the upper mold substrate 11 and the lower mold substrate 21. Specifically, the upper mold substrate 11 is provided with a positioning groove 17, and the lower mold substrate 21 is provided with a positioning boss 215 that matches the positioning groove 17. After the upper mold substrate 11 and the lower mold substrate 21 are covered, the positioning groove 17 and the positioning boss 215 cooperate with each other to prevent the upper mold substrate 11 and / or the lower mold substrate 21 from shifting due to external force, and effectively avoid alignment deviation caused by shifting between the upper mold substrate 11 and the lower mold substrate 21. Of course, the positioning structure can also be in the form of snap fit, etc., which is not limited here.

[0041] refer to Figure 3 The lower mold mechanism 20 further includes a lower mold bottom plate 22 and a nozzle assembly 23. The lower mold bottom plate 22 is disposed on a side of the lower mold base plate 21 away from the upper mold base plate 11. The nozzle assembly 23 is disposed between the lower mold bottom plate 22 and the lower mold base plate 21. The lower mold bottom plate 22 is provided with a liquid injection hole 221. The liquid injection hole 221 is connected to the liquid injection end of the nozzle assembly 23, and the injection hole is connected to the liquid outlet end of the nozzle assembly 23. After the upper mold base plate 11 and the lower mold base plate 21 are covered, the injection molding machine injects liquid through the liquid injection hole 221, and the nozzle assembly 23 transports the liquid to the injection hole and enters the injection cavity to perform the injection molding process.

[0042] It should be noted that the injection mold 100 of this embodiment can have multiple injection cavities, and the sprue assembly 23 has liquid outlets equal to the number of injection cavities, and each liquid outlet is connected to the corresponding injection cavity, so that multiple injection molded parts can be formed through a single injection.

[0043] The working process of the injection mold 100 will be described in detail below:

[0044] refer to Figure 1-Figure 5 When the upper mold substrate 11 and the lower mold substrate 21 are in a separated state, the robot fixture 300 moves to the position where the injection mold 100 is located, and extends between the upper mold substrate 11 and the lower mold substrate 21. The robot fixture 300 inserts the pin needle into the receiving groove 213 of the lower mold substrate 21, and the robot fixture 300 moves out of the injection mold 100. The injection mold 100 is aligned and covered under the action of the telescopic section rod 30, and the injection molding process is completed under the action of the injection molding machine. The upper mold substrate 11 and the lower mold substrate 21 are separated again under the action of the telescopic section rod 30, and the injection molded part with the pin needle remains in the first cavity 111, while there is no pin needle in the receiving groove 213 of the second cavity 212. The robot jig 300 moves back to the position where the injection mold 100 is located, and extends between the upper mold base plate 11 and the lower mold base plate 21. The robot jig 300 inserts the pin into the receiving groove 213 of the lower mold base plate 21. At the same time, the robot jig 300 clamps the injection molded part, and the robot jig 300 moves out of the injection mold 100 and moves to the position where the conveyor belt 400 is located. The injection mold 100 is covered under the action of the telescopic section rod 30, and the robot jig 300 places the injection molded part on the conveyor belt 400. Repeating the above process can realize the fully automated production of the charging plug.

[0045] Combination Figure 1-Figure 5The upper mold base plate 11 and the lower mold base plate 21 of the injection mold 100 of the present invention can be selectively covered and separated by a telescopic component. On the one hand, the telescopic component plays a connecting role, so that an integrated structure with a telescopic function is formed between the upper mold base plate 11 and the lower mold base plate 21, and the upper mold base plate 11 and the lower mold base plate 21 can be used as a whole, avoiding the increase of the covering and alignment process due to the separation of the upper mold base plate 11 and the lower mold base plate 21; on the other hand, the telescopic component plays a guiding role. Since the telescopic component is arranged between the upper mold base plate 11 and the lower mold base plate 21, the upper mold base plate 11 and the lower mold base plate 21 are The telescopic path formed by the telescopic component has a definite covering and separation path. The upper mold substrate 11 and the lower mold substrate 21 can achieve a stable covering alignment effect under the action of the telescopic component, avoiding injection failure caused by human alignment deviation, and effectively improving the yield rate; on the other hand, when the upper mold substrate 11 and the lower mold substrate 21 are separated by the telescopic component, a certain space is formed between the upper mold substrate 11 and the lower mold substrate 21, which is convenient for the robot fixture 300 to enter between the upper mold substrate 11 and the lower mold substrate 21 to synchronously perform the process of inserting pins and taking injection molded parts, greatly improving work efficiency. The charging plug production equipment 1000 of the present invention realizes the transfer of pins from the feeding mechanism 200 to the mold, and transfers the injection molded parts from the mold to the conveyor belt 400 in a fully automated manner, effectively improving productivity and yield rate.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An injection mold, characterized in that: The invention comprises an upper mold mechanism (10), a lower mold mechanism (20) and a telescopic component, wherein the upper mold mechanism (10) and the lower mold mechanism (20) are arranged relative to each other, the upper mold mechanism (10) comprises an upper mold base plate (11), the lower mold mechanism (20) comprises a lower mold base plate (21), the upper mold base plate (11) is provided with a first cavity (111), the lower mold base plate (21) is provided with an injection hole and a second cavity (212) corresponding to the first cavity (111), the injection hole is connected to the second cavity (212), and the second cavity (212) is provided with A receiving groove (213) for inserting a pin, the telescopic assembly is arranged between the upper mold substrate (11) and the lower mold substrate (21), the upper mold substrate (11) and the lower mold substrate (21) can be selectively covered and separated by the telescopic assembly, when the upper mold substrate (11) and the lower mold substrate (21) are covered, the first cavity (111) and the second cavity (212) are connected to form an injection cavity, and when the upper mold substrate (11) and the lower mold substrate (21) are separated, the injection molded part in the injection cavity is separated from the second cavity (212); The upper mold mechanism (10) further comprises two upper mold monomers (12) arranged opposite to each other, the two upper mold monomers (12) are slidably connected to the upper mold base plate (11), and the two upper mold monomers (12) move towards each other to be spliced ​​to form the first cavity (111); The depth of the first cavity (111) is greater than the depth of the second cavity (212).

2. The injection mold according to claim 1, characterized in that: The telescopic assembly comprises a plurality of telescopic joint rods (30), the upper mold substrate (11) and the lower mold substrate (21) are arranged in parallel, one end of the telescopic joint rod (30) is erected on the upper mold substrate (11), and the other end is erected on the lower mold substrate (21), and the telescopic joint rod (30) is perpendicular to the plane where the upper mold substrate (11) and the lower mold substrate (21) are located.

3. The injection mold according to claim 2, characterized in that: The telescopic rods (30) are arranged at intervals along the circumference of the upper mold base plate (11) and the lower mold base plate (21).

4. The injection mold according to claim 1, characterized in that: The upper mold mechanism (10) also includes two relatively arranged limit blocks (13), wherein the limit blocks (13) are arranged on the upper mold base plate (11), and the two upper mold monomers (12) are arranged between the two limit blocks (13) and are limited to sliding between the two limit blocks (13), and a first buffer spring is arranged between the limit block (13) and the corresponding upper mold monomer (12), and the first buffer spring constantly provides an elastic force to push the upper mold monomer (12) toward another upper mold monomer (12).

5. The injection mold according to claim 1, characterized in that: The upper mold mechanism (10) also includes an upper mold base plate (14), a guide column (15) and a second buffer spring (16); the upper mold base plate (14) is arranged on a side of the upper mold substrate (11) away from the lower mold substrate (21); the guide column (15) is vertically arranged on the upper mold base plate (14), and its free end can pass through the upper mold substrate (11); the second buffer spring (16) is passed through the guide column (15) and abuts between the upper mold base plate (14) and the upper mold substrate (11); the lower mold substrate (21) is provided with a guide hole (214) for the guide column (15) to be inserted into the position.

6. The injection mold according to claim 1, characterized in that: The upper mold base plate (11) is provided with a positioning groove (17), and the lower mold base plate (21) is provided with a positioning boss (215) that matches the positioning groove (17).

7. The injection mold according to claim 1, characterized in that: The lower mold mechanism (20) further comprises a lower mold base plate (22) and a nozzle assembly (23), wherein the lower mold base plate (22) is arranged on a side of the lower mold base plate (21) away from the upper mold base plate (11), and the nozzle assembly (23) is arranged between the lower mold base plate (22) and the lower mold base plate (21), and the lower mold base plate (22) is provided with an injection hole (221), wherein the injection hole (221) is connected to the injection end of the nozzle assembly (23), and the injection hole is connected to the liquid outlet end of the nozzle assembly (23).

8. A charging plug production device, characterized in that: It comprises a feeding mechanism (200), a robot fixture (300), an injection molding machine, a conveyor belt (400), and an injection mold (100) as described in any one of claims 1 to 7, wherein the feeding mechanism (200) provides the pin needle, the injection molding machine is used to perform injection molding operation on the injection mold (100), the robot fixture (300) is used to obtain the pin needle and transfer the pin needle to the receiving groove (213), and is used to transfer the injection molded part to the conveyor belt (400).

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