Injection mold

Abstract

The utility model discloses an injection mold relates to injection mold technology field, wherein, injection mold includes mould and straight top subassembly, and the mould forms the cavity that supplies product injection molding, the straight top subassembly includes guide rod, straight top rod, straight top block and first sliding block, the guide rod is located the mould, straight top rod is movably worn in the mould, straight top rod is close to the one end of mould and is connected with straight top block, straight top block is movably sleeved in the guide rod, and first sliding block can be slidably arranged in straight top block, and is connected with guide rod sliding, wherein, when straight top rod moves to the direction close to the mould, first sliding block moves close to the product to make straight top block and product separate.

Description

Technical Field

[0001] This utility model relates to the field of injection molding demolding technology, and in particular to an injection mold. Background Technology

[0002] In the field of plastic mold manufacturing, demolding efficiency and quality have always been key factors affecting production efficiency and product appearance. For products with complex structures, especially those with internal undercuts, traditional demolding solutions often face numerous challenges.

[0003] In related technologies, for products with a full inner undercut, the mold typically uses multiple sliders with different directions of movement, in conjunction with a large straight ejector and a slanted ejector to complete the undercut core pulling. In this solution, the mold uses an external hydraulic cylinder to drive a shovel base, which in turn drags the sliders via a dovetail groove to perform the core pulling action. The large straight ejector rests on the inner undercut of the product. During injection molding, the large straight ejector and the slanted ejector move in tandem, with the slanted ejector pushing the product out of the large straight ejector, completing the undercut core pulling in the area of ​​the large straight ejector. Finally, a robotic arm removes the product from the slanted ejector.

[0004] However, due to the tilt angle and space limitations of the slanted ejector, it is prone to scratches from high temperatures during production, resulting in burrs on the product and affecting its appearance. More seriously, severe scratches can cause the slanted ejector to burn out and fail to reset, leading to mold collisions. This not only affects on-time product delivery but also increases mold repair costs and time. Utility Model Content

[0005] The main purpose of this invention is to provide an injection mold that improves the appearance quality of the product after demolding.

[0006] To achieve the above objectives, the injection mold proposed in this utility model includes:

[0007] Mold core, the mold core forming a cavity for injection molding of the product; and

[0008] A direct ejector assembly includes a guide rod, a direct ejector rod, a direct ejector block, and a first slider. The guide rod is disposed in the mold core, the direct ejector rod is movably inserted through the mold core, one end of the direct ejector rod near the mold core is connected to the direct ejector block, the direct ejector block is movably sleeved on the guide rod, and the first slider is slidably disposed in the direct ejector block and slidably connected to the guide rod.

[0009] When the straight ejector moves toward the mold core, the first slider moves toward the product, so that the straight ejector block disengages from the product. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0011] Figure 1 A schematic diagram of an embodiment of an injection mold provided by this utility model;

[0012] Figure 2 A schematic diagram of a direct-mount component and its interaction with a product is provided for this utility model.

[0013] Figure 3 An exploded structural diagram of an embodiment of the direct-push assembly provided by this utility model;

[0014] Figure 4 A first sectional view of an embodiment of an injection mold provided for this utility model;

[0015] Figure 5 for Figure 4 Enlarged view of section A in the middle;

[0016] Figure 6 A second sectional view of an embodiment of an injection mold provided for this utility model;

[0017] Figure 7 for Figure 6 Enlarged view of section B in the middle;

[0018] Figure 8 A third sectional view of an embodiment of an injection mold provided for this utility model;

[0019] Figure 9 for Figure 8 Enlarged view of section C in the middle;

[0020] Figure 10 A fourth sectional view of an embodiment of an injection mold provided for this utility model;

[0021] Figure 11 for Figure 10 Enlarged view of point D in the middle section;

[0022] Figure 12 A schematic diagram of another embodiment of the injection mold provided by this utility model;

[0023] Figure 13 The fifth sectional view of an embodiment of the injection mold provided by this utility model.

[0024] Explanation of icon numbers:

[0025] 100. Injection mold; 1. Mold core; 11. Cavity; 12. Third mounting slot; 13. Mounting slot; 121. Limiting step; 2. Straight ejector assembly; 21. Guide rod; 211. Guide groove; 211a. First guide straight groove section; 211b. Guide inclined groove section; 211c. Second guide straight groove section; 212. Limiting part; 22. Straight ejector rod; 221. T-shaped locking block; 23. Straight ejector block; 231. First mounting slot; 232. Second mounting slot; 233. Opening; 234. Through hole; 235. Connecting part; 235a. T-shaped locking groove; 236. Main body; 24. First slider; 241. Positioning pin; 242. Snap-fit ​​groove; 3. Second slider; 4. Reset plate; 41. Reset rod; 5. Top plate; 6. Elastic element;

[0026] 200. Products.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] This utility model proposes an injection mold 100.

[0032] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the injection mold 100 includes a mold core 1 and a straight ejector assembly 2. The mold core 1 forms a cavity 11 for injection molding of a product 200. The straight ejector assembly 2 includes a guide rod 21, a straight ejector rod 22, a straight ejector block 23, and a first slider 24. The guide rod 21 is disposed on the mold core 1, the straight ejector rod 22 is movably disposed through the mold core 1, one end of the straight ejector rod 22 near the mold core 1 is connected to the straight ejector block 23, the straight ejector block 23 is movably sleeved on the guide rod 21, and the first slider 24 is slidably disposed within the straight ejector block 23 and slidably connected to the guide rod 21. When the straight ejector rod 22 moves toward the direction closer to the mold core 1, the first slider 24 moves toward the product 200, so that the straight ejector block 23 disengages from the product 200.

[0033] In this utility model, when the straight ejector rod 22 moves toward the direction close to the mold core 1, the straight ejector block 23 moves upward and drives the product 200 to move upward. As the straight ejector rod 22 and the straight ejector block 23 move upward, the first slider 24 moves closer to the product 200 and pushes the product 200 away from the straight ejector block 23 so that the straight ejector block 23 is separated from the product 200. The robot arm takes out the product 200 and completes the demolding of the product 200. During this demolding process, when the first slider 24 contacts the product 200, its movement direction is consistent with the demolding direction, which can smoothly push the product 200 and avoid scratches or deformation of the product 200 surface caused by oblique force. This design is particularly suitable for products 200 with complex structures, such as products 200 with inverted inner sides, and can effectively protect the appearance quality of the product 200. The movement direction of the first slider 24 is consistent with the demolding direction, which means that it can directly act on the product 200, reducing the force transmission loss in the intermediate links. This direct action method makes the demolding process faster and more reliable, avoiding demolding failure or jamming caused by complex force transmission paths. Traditional angled ejector designs are prone to burnout and non-resetting at high temperatures, resulting in mold collision. In this design, the movement direction of the first slider 24 is consistent with the demolding direction, avoiding the use of angled ejectors, thus fundamentally solving the problems of angled ejector burnout and mold collision, and extending the service life of the mold.

[0034] The sliding connection between the first slider 24 and the guide rod 21 can be achieved by using a sliding guide rail and slider. The guide rail is located on the side wall of the guide rod 21 and includes a first guide section, a guide inclined section, and a second guide section connected to each other. The first and second guide sections are arranged along the height direction of the guide rod 21, and the guide inclined section is inclined towards the product 200. The first slider 24 is located on the side wall of the slider. Alternatively, it can be achieved by using a slidingly fitted positioning pin 241 and a guide groove 211. The guide groove 211 is provided on the side wall of the guide rod 21 and includes the first guide section connected to each other. The system includes a first guide section, a second guide section, and a guide ramp. The first guide section and the second guide section are arranged along the height direction of the guide rod 21. The guide ramp is inclined toward the product 200. The side wall of the first slider 24 has a positioning pin 241. The positioning pin 241 slides within the guide groove 211, but this solution does not restrict this. Through the guidance of the first guide section, the guide ramp, and the second guide section, the first slider 24 moves smoothly within the ejector block 23, ensuring that the ejector block 23 and the first slider 24 can accurately disengage from the product 200 during the demolding process, thereby improving the stability and accuracy of demolding.

[0035] Please see Figure 4 and Figure 5 In one embodiment, a positioning pin 241 is formed on the side of the first slider 24 facing the guide rod 21. A guide groove 211 is formed on the side of the guide rod 21 facing the first slider 24 along its extending direction. The positioning pin 241 is slidably limited within the guide groove 211. The guide groove 211 includes a first guide straight groove section 211a, a guide inclined groove section 211b, and a second guide straight groove section 211c connected in sequence. The first guide straight groove section 211a and the second guide straight groove section 211c both extend along the height direction of the guide rod 21. The guide inclined groove section 211b is inclined towards the product 200. By using the sliding cooperation of the positioning pin 241 and the guide groove 211, the problems of poor motion accuracy, damage to the product 200, and high mold complexity existing in traditional inclined ejector demolding schemes can be solved. Specifically, when the straight ejector rod 22 moves towards the direction closer to the mold core 1, the straight ejector block 23 moves upward, and the positioning pin 241 of the first slider 24 moves within the first guide straight groove section 211a (see [reference]). Figure 4 and Figure 5 ), until the locating pin 241 reaches the guide groove section 211b (see Figure 6 and Figure 7 Driven by the guide inclined groove section 211b, the first slider 24 moves closer to the product 200 until the positioning pin 241 moves to the second guide straight groove section 211c (see [link]). Figure 8 and Figure 9At this point, the first slider 24 ejects the product 200, the straight ejector block 23 disengages from the product 200, and the robotic arm removes the product 200. Because the movement direction of the first slider 24 is consistent with the demolding direction of the product 200, damage to the product 200 caused by uneven force is reduced, ensuring that the product 200 receives uniform thrust during demolding and reducing deformation or scratches caused by excessive local pressure.

[0036] Please see Figure 2 In one embodiment, the direct ejector assembly 2 includes multiple guide rods 21 and multiple first sliders 24. Each guide rod 21 has a guide groove 211 on both sides, and each guide rod 21 has a first slider 24 on both sides. The locating pin 241 of each first slider 24 is limited to sliding within a guide groove 211. During demolding, multiple first sliders 24 act simultaneously on the product 200, ensuring that the product 200 receives uniform thrust in all directions, avoiding deformation or scratches caused by uneven force at a single point. Since each first slider 24 is guided by an independent guide groove 211, its movement accuracy is higher, effectively reducing jamming during demolding and improving demolding efficiency. In addition, this multi-point demolding design reduces reliance on complex inclined ejector structures, lowers mold complexity and manufacturing costs, and also reduces mold maintenance problems caused by inclined ejector burn-out or failure to reset, further improving mold lifespan and reliability.

[0037] Specifically, please refer to Figure 3In one embodiment, the ejector block 23 has a first mounting slot 231 and a second mounting slot 232 for mounting the first slider 24 and the guide rod 21, respectively. The first mounting slot 231 extends in the direction of movement of the first slider 24, and the second mounting slot 232 extends in the direction of movement of the ejector block 23. An opening 233 is formed on one side wall of the first mounting slot 231 near the second mounting slot 232, and the positioning pin 241 passes through the opening 233 and is partially accommodated within the second mounting slot 232. The first mounting slot 231 extends in the direction of movement of the first slider 24 to mount the first slider 24, ensuring that the first slider 24 can move smoothly along a predetermined demolding direction. The second mounting slot 232 extends in the direction of movement of the ejector block 23 to mount the guide rod 21, providing stable guidance for the vertical movement of the ejector block 23. An opening 233 is provided on one side wall of the first mounting slot 231 near the second mounting slot 232. A locating pin 241 passes through the opening 233 and is partially accommodated within the second mounting slot 232. This design allows the locating pin 241 of the first slider 24 to slide within the guide groove 211 of the guide rod 21, while simultaneously cooperating with the movement of the ejector block 23. During demolding, when the ejector block 23 moves upward, the locating pin 241 of the first slider 24 slides within the guide groove 211, guiding the first slider 24 towards the product 200, thereby achieving the demolding action. The precise setting of the first mounting slot 231 and the second mounting slot 232 ensures more accurate movement trajectories for the first slider 24 and the ejector block 23, reducing shaking and jamming during movement. Integrating the installation of the first slider 24 and the guide rod 21 onto the ejector block 23 reduces mold complexity, manufacturing costs, and assembly difficulty. The positioning pin 241 passes through the opening 233 and is partially accommodated within the second mounting slot 232. This design makes the connection between the first slider 24 and the ejector block 23 more stable, enhancing the stability of the entire demolding system. The movement direction of the first slider 24 is consistent with the demolding direction of the product 200, reducing damage to the product 200 caused by oblique forces. At the same time, the multi-point demolding design can push the product 200 more evenly, improving demolding efficiency. This avoids mold damage caused by the oblique ejector burning out or failing to reset in traditional oblique ejector schemes, thereby extending the service life of the mold.

[0038] For easy installation and removal of the first slider 24, please refer to [link / reference]. Figure 3In one embodiment, the side wall of the opening 233 away from the product 200 has a through hole 234 for the positioning pin 241 to pass through. When the guide rod 21 needs to be disassembled for mold maintenance or replacement, the through hole 234 allows the positioning pin 241 to exit from that position, thereby allowing the first slider 24 to be easily removed from the straight ejector block 23, greatly simplifying the mold maintenance and repair process and improving maintenance efficiency. By setting the through hole 234, the first slider 24 can be quickly separated, facilitating the cleaning, inspection, or replacement of parts inside the mold. Quick disassembly and installation of the first slider 24 can reduce mold downtime and improve production efficiency, thereby indirectly reducing maintenance costs. This design makes the mold more flexible when the first slider 24 needs to be adjusted or replaced, and the mold structure can be quickly adjusted according to different product 200 requirements, enhancing the versatility and adaptability of the mold. Since the disassembly and installation process is simpler, the risk of mold damage caused by forced disassembly is reduced, thereby helping to extend the service life of the mold.

[0039] Please see Figure 10 and Figure 11 In one embodiment, the mold core 1 has a third mounting slot 12 communicating with the second mounting slot 232. A limiting step 121 is formed on the inner peripheral wall of the third mounting slot 12. A limiting portion 212 is formed at the end of the guide rod 21 away from the ejector block 23, and the limiting portion 212 abuts against the limiting step 121 for limitation. The third mounting slot 12 communicates with the second mounting slot 232, providing a complete installation path for the guide rod 21 from the inside of the mold core 1 to the ejector block 23, ensuring stable installation of the guide rod 21 within the entire mold structure and avoiding movement deviations caused by inaccurate installation positions. The limiting step 121 is located on the inner peripheral wall of the third mounting groove 12, and the limiting part 212 of the guide rod 21 abuts against the limiting step 121, so that the guide rod 21 can be firmly fixed in the mold core 1 after installation, preventing it from loosening or shifting due to external force during demolding, thereby improving the accuracy and reliability of demolding movement; the stable installation of the guide rod 21 ensures the sliding accuracy of the first slider 24 in the guide groove 211, thereby improving the movement accuracy of the entire demolding system and reducing demolding deviation caused by loosening of the guide rod 21.

[0040] To prevent product 200 from falling due to gravity during demolding, please refer to [link / reference needed]. Figure 3In one embodiment, each of the first sliders 24 has a snap-fit ​​groove 242 on the side facing the product 200, which engages with the undercut ribs of the product 200. The snap-fit ​​groove 242 matches the undercut ribs of the product 200, and can firmly hold the undercut part of the product 200 during demolding, ensuring that the product 200 will not fall freely due to gravity when it is detached from the ejector block 23, thereby avoiding possible damage to the product 200 due to falling; during demolding, the snap-fit ​​groove 242 of the first slider 24 cooperates with the undercut ribs of the product 200, so that the product 200 can maintain a stable position when it is ejected, avoiding demolding failure or damage to the product 200 due to positional displacement. The engagement of the snap-fit ​​groove 242 with the undercut ribs ensures that the product 200 maintains a stable position during demolding, reducing the risk of demolding failure or damage to the product 200 due to positional misalignment. The design of the snap-fit ​​groove 242 ensures the precise position of the product 200 during demolding, making the demolding action smoother and improving demolding accuracy.

[0041] To achieve a stable connection between the straight push block 23 and the straight push rod 22, please refer to [link / reference needed]. Figure 3 and Figure 11 In one embodiment, the straight ejector block 23 includes a connecting part 235 and a main body 236 connected together. The first slider 24 is slidably disposed in the main body 236. The connecting part 235 is slidably disposed in the mold core 1. A T-shaped slot is provided at the end of the connecting part 235 away from the main body 236. A T-shaped block is provided at the end of the straight ejector rod 22 near the connecting part 235. The T-shaped block is engaged in the T-shaped slot. The ejector block 23 is divided into two parts: a connecting part 235 and a main body 236. The connecting part 235 slides through the mold core 1, ensuring that the ejector block 23 can move smoothly up and down within the mold core 1. The main body 236 is used to accommodate the first slider 24, allowing it to slide within the main body 236. A T-shaped slot is provided at the end of the connecting part 235 away from the main body 236, and a T-shaped block is provided at the end of the ejector rod 22 near the connecting part 235. The T-shaped block engages with the T-shaped slot, making the connection between the ejector rod 22 and the ejector block 23 more secure, while also facilitating disassembly and installation. The cooperation between the T-shaped slot and the T-shaped block makes the connection between the ejector rod 22 and the ejector block 23 more secure, effectively preventing loosening or detachment due to external forces during demolding, thus improving the reliability of the mold. This snap-fit ​​design makes the disassembly and installation of the ejector rod 22 and the ejector block 23 more convenient and quick. When mold maintenance or component replacement is required, the ejector pin 22 and ejector block 23 can be quickly separated, reducing maintenance time and costs. Since the connection between the ejector pin 22 and ejector block 23 is achieved through T-slots and T-blocks, this design allows for quick replacement of the ejector pin 22 or ejector block 23 without changing the structure of the mold core 1, enhancing the flexibility and versatility of the mold.

[0042] Please see Figure 1 In one embodiment, the mold core 1 has multiple mounting slots 13 communicating with the cavity 11, and the injection mold 100 includes multiple second sliders 3, each of which is slidably disposed within a mounting slot 13. The mounting slots 13 on the mold core 1 communicate with the cavity 11, providing space for the installation and sliding of the second sliders 3. This design allows the second sliders 3 to slide along a predetermined trajectory within the mold core 1, thereby enabling the molding and demolding of complex structure products 200. The second sliders 3, installed within the mounting slots 13, can cooperate with the cavity 11 of the mold core 1 during injection molding to form complex structural parts of the product 200, such as sidewalls and undercuts. During demolding, the second sliders 3 can slide, thereby releasing the complex structural parts of the product 200 and achieving smooth demolding.

[0043] Further, please refer to Figure 12 and Figure 13 In one embodiment, the injection mold 100 includes a reset plate 4, a top plate 5, and an elastic element 6. The straight ejector rod 22 slidably passes through the top plate 5 and the reset plate 4. A reset rod 41 is formed on the side of the reset plate 4 facing the top plate 5. The end of the reset rod 41 away from the reset plate 4 slidably passes through the top plate 5. The elastic element 6 is sleeved on the reset rod 41 and located between the top plate 5 and the reset plate 4. The reset plate 4 and the top plate 5 are connected by the reset rod 41. The reset rod 41 can slide through the top plate 5, allowing the reset plate 4 to move smoothly on the top plate 5, ensuring that the straight ejector rod 22 can accurately reset after demolding. The elastic element 6 is sleeved on the reset rod 41 and located between the top plate 5 and the reset plate 4. The elastic element 6 (such as a spring) provides a reset force to the reset plate 4, ensuring that the straight ejector rod 22 can quickly and accurately return to its initial position after demolding, preparing for the next injection molding. The cooperation between the reset rod 41 and the elastic element 6 ensures that the straight ejector rod 22 can accurately reset after demolding, reducing the risk of product 200 molding problems or mold damage caused by inaccurate reset; the elastic element 6 (such as a spring) provides a stable reset force, ensuring that the straight ejector rod 22 can quickly return to its initial position after each demolding. This stable reset force helps to improve the operating efficiency and reliability of the mold; through the cooperation of the reset plate 4, the top plate 5 and the elastic element 6, the reset process of the straight ejector rod 22 is more stable and reliable, reducing mold failures caused by insufficient or unstable reset force and extending the service life of the mold.

[0044] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An injection mold, characterized in that, include: Mold core, wherein the mold core forms a cavity for injection molding of the product; and A direct ejector assembly includes a guide rod, a direct ejector rod, a direct ejector block, and a first slider. The guide rod is disposed in the mold core, the direct ejector rod is movably inserted through the mold core, one end of the direct ejector rod near the mold core is connected to the direct ejector block, the direct ejector block is movably sleeved on the guide rod, and the first slider is slidably disposed in the direct ejector block and slidably connected to the guide rod. When the straight ejector moves toward the mold core, the first slider moves toward the product, so that the straight ejector block disengages from the product.

2. The injection mold as described in claim 1, characterized in that, A positioning pin is formed on the side of the first slider facing the guide rod. A guide groove is formed on the side of the guide rod facing the first slider along its extension direction. The positioning pin is slidably limited within the guide groove. The guide groove includes a first guide straight groove section, a guide inclined groove section, and a second guide straight groove section connected in sequence. The first guide straight groove section and the second guide straight groove section both extend along the height direction of the guide rod. The guide inclined groove section is inclined towards the product.

3. The injection mold as described in claim 2, characterized in that, The direct-acting assembly includes multiple guide rods and multiple first sliders. Each guide rod has a guide groove on both sides, and each guide rod has a first slider on both sides. The positioning pin of each first slider is limited to sliding within a guide groove.

4. The injection mold as described in any one of claims 2 to 3, characterized in that, The straight push block is provided with a first mounting slot and a second mounting slot for mounting the first slider and the guide rod, respectively. The first mounting slot extends in the direction of movement of the first slider, and the second mounting slot extends in the direction of movement of the straight push block. An opening is provided on one side wall of the first mounting slot near the second mounting slot, and the positioning pin passes through the opening and is partially accommodated in the second mounting slot.

5. The injection mold as described in claim 4, characterized in that, The opening has a through hole on the side wall away from the product for the positioning pin to pass through.

6. The injection mold as described in claim 4, characterized in that, The mold core has a third mounting slot that communicates with the second mounting slot. The inner peripheral wall of the third mounting slot forms a limiting step. The end of the guide rod away from the straight push block forms a limiting part, and the limiting part abuts against the limiting step for limiting.

7. The injection mold as described in any one of claims 1 to 3, characterized in that, Each of the first sliders has a snap-fit ​​groove on the side facing the product that engages with the inverted rib of the product.

8. The injection mold as described in any one of claims 1 to 3, characterized in that, The straight ejector block includes a connecting part and a main body connected together. The first slider is slidably disposed in the main body. The connecting part is slidably disposed in the mold core. A T-shaped slot is provided at the end of the connecting part away from the main body. A T-shaped block is provided at the end of the straight ejector rod near the connecting part. The T-shaped block is engaged in the T-shaped slot.

9. The injection mold as described in any one of claims 1 to 3, characterized in that, The mold core has multiple mounting slots that communicate with the cavity, and the injection mold includes multiple second sliders, each of which is slidably disposed in one of the mounting slots.

10. The injection mold according to any one of claims 1 to 3, characterized in that, The injection mold includes a reset plate, a top plate, and an elastic element. The straight ejector rod slides through the top plate and the reset plate. A reset rod is formed on the side of the reset plate facing the top plate. The end of the reset rod away from the reset plate slides through the top plate. The elastic element is sleeved on the reset rod and located between the top plate and the reset plate.

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