Injection mold
By introducing guide members and guide groove structures into the injection mold, the sliding guide of the mold core is realized, and the hole position error caused by the large number of thimbles is solved, which improves the mold maintenance efficiency and accuracy.
Patent Information
- Application Number
- CN202422295954.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-19
AI Technical Summary
During maintenance and maintenance of traditional injection molds, due to the large number and thin number of thimbles, it is easy to penetrate the holes incorrectly, resulting in wasted time and the process of disassembling and assembling the thimbles has inefficient efficiency.
An injection mold is designed to allow the ejector to slide without disassembly by providing guides and guide grooves between the die core and the base to realize the maintenance and maintenance of the die core. The movement of the guide member is used to guide the die core to avoid mis-hole positioning of the ejector, and to ensure the accurate alignment of the ejector through the ejector guide plate and the limiting member.
It improves the maintenance efficiency of injection molds, simplifies the maintenance and maintenance process, reduces time waste, and improves work efficiency and accuracy.
Smart Images
Figure CN223147628U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molding, and particularly relates to an injection mold. Background Art
[0002] An injection mold is a tool for producing plastic products and also a tool for endowing plastic products with a complete structure and precise dimensions. Injection molding is a processing method used in mass-producing some parts with complex shapes. Specifically, it means that the molten plastic heated is injected into the mold cavity under high pressure by an injection molding machine, and after cooling and solidifying, a formed product is obtained. In production and manufacturing, some injection molds have a large number of ejector pins. Among them, there is a type where the number of cavities of a certain type of product is small, but the number of ejector pins per cavity is very large and dense, and there is also a situation where the number of cavities is large and the corresponding ejector pins are also numerous. When maintaining and servicing the above-mentioned molds, due to the large number of ejector pins and the fact that the ejector pins are relatively thin and not easy to penetrate, the time spent on penetrating the ejector pins is very long. In traditional molds, the ejector pins are inserted one by one from the ejector plate into the corresponding ejector pin holes in the mold core. Due to the large number and density of the ejector pins, the ejector pins are easily inserted into the wrong holes and time is wasted. At the same time, when maintaining and servicing the mold, the process of removing and reinstalling the ejector pins will cause a waste of time. Summary of the Utility Model
[0003] Based on this, the present application provides an injection mold, which can realize the maintenance and servicing of the injection mold without removing the ejector pins, so as to improve the maintenance efficiency of the injection mold.
[0004] An injection mold includes a housing, a base and a mold core. The mold core and the base are respectively located on opposite sides of the housing. The base is movably connected to the housing. A moving template cavity is formed on one side of the housing close to the mold core. The mold core is slidably disposed in the moving template cavity of the housing. A guiding member is provided at the bottom of the moving template cavity. The mold core is provided with a first through hole along a first direction. The guiding member extends into the first through hole to guide the mold core when it enters the moving template cavity. The base is provided with an ejector pin, and the ejector pin includes a connected first ejector pin portion and a second ejector pin portion. The second ejector pin portion is connected to the base. A first guiding groove communicating with the moving template cavity is formed on one side of the housing facing the base. The first ejector pin portion extends into the first guiding groove to the moving template cavity. When the mold core slides to the bottom of the moving template cavity and the base moves towards the moving template cavity side, the first ejector pin portion extends into the mold core.
[0005] The above injection mold includes a housing, a base, and a mold core. The mold core and the base can move toward the side close to the housing respectively. The mold core is slidably disposed in the cavity of the moving template of the housing. A ejector pin is provided on the base. The first ejector pin portion of the ejector pin can move toward the cavity of the moving template under the drive of the base. The housing is provided with a first guide groove. The first ejector pin portion of the ejector pin can extend into the first guide groove. When the ejector pin moves close to the cavity of the moving template under the drive of the base, the first ejector pin portion of the ejector pin can extend into the first guide groove to the cavity of the moving template. At the same time, the mold core can move toward the base side and enter the cavity of the moving template, so that the first ejector pin portion extends into the mold core, and the parts that have been injection-molded in the mold core can be ejected. When the mold core needs to be repaired and maintained, the mold core is moved along the side away from the base, so that the mold core is separated from the cavity of the moving template to facilitate the operator to repair and maintain the mold core, avoiding the process of removing the ejector pin in the prior art, and the repair and maintenance of the injection mold can be realized without removing the ejector pin, so as to improve the maintenance efficiency of the injection mold.
[0006] In one embodiment, the guiding member includes a guiding post. The guiding post is spaced from the first through hole. The guiding post is parallel to the first guide groove. When the mold core slides into the cavity of the moving template, the guiding post extends into the first through hole along a first direction to limit the movement of the mold core along the guiding post in the first direction.
[0007] In one embodiment, the guiding post penetrates from the side of the housing close to the base to the bottom of the cavity of the moving template.
[0008] In one embodiment, the number of the ejector pins is multiple, and the number of the first guide grooves is multiple. The multiple ejector pins are spaced apart, and the multiple first guide grooves are spaced apart. The ejector pins and the first guide grooves correspond to each other one by one.
[0009] In one embodiment, the injection mold further includes an ejector pin guiding plate. The ejector pin guiding plate sleeves the guiding post and is slidably disposed in the cavity of the moving template. The first ejector pin portion of the ejector pin penetrates through the ejector pin guiding plate.
[0010] In one embodiment, the injection mold further includes a limiting member. A first limiting hole is formed at the bottom of the cavity of the moving template. A second limiting hole is formed on the side of the ejector pin guiding plate away from the mold core. The limiting member penetrates through the first limiting hole and is fixed in the second limiting hole. The limiting member can slide in the first limiting hole.
[0011] In one embodiment, the first limiting hole includes a first limiting hole section and a second limiting hole section. The first limiting hole section is close to the bottom of the cavity of the movable template cavity, and the width of the first limiting hole section is smaller than that of the second limiting hole section. The limiting member includes a first limiting portion and a second limiting portion connected in sequence. The first limiting portion passes through the first limiting hole and is fixed to the ejector pin guide plate. The width of the second limiting portion is larger than that of the first limiting hole section and smaller than or equal to that of the second limiting hole section.
[0012] In one embodiment, a third limiting hole is formed on one side of the base close to the housing. When the base moves relative to the housing, the second limiting portion abuts against the third limiting hole.
[0013] In one embodiment, a ejector pin guide groove is provided on one side of the mold core close to the housing. The opening of the ejector pin guide groove is provided with an ejector pin guiding angle. Part of the first ejector pin portion passes through the ejector pin guide groove so that the ejector pin abuts against the mold core.
[0014] In one embodiment, an elastic member is provided between the base and the housing. The elastic members are symmetrically arranged on both sides of the housing. When the first ejector pin portion abuts against the housing on one side, the elastic member is in a compressed state. Description of the Drawings
[0015] The following further describes the present invention in conjunction with the drawings and embodiments, where:
[0016] Figure 1 is a schematic structural diagram of an injection mold according to an embodiment;
[0017] Figure 2 is a schematic diagram of a partial structure of an injection mold according to an embodiment;
[0018] Figure 3 is a schematic structural diagram of an injection mold according to an embodiment;
[0019] Figure 4 is a schematic diagram of a partial structure of an injection mold according to an embodiment.
[0020] Reference numerals: injection mold 10; housing 20; movable template cavity 21; first limiting hole 210; first limiting hole section 2101; second limiting hole section 2102; first guide groove 22; guide member 23; guide post 230; base 30; third limiting hole 31; mold core 40; first through hole 41; ejector pin guide groove 42; ejector pin guiding angle 420; ejector pin 50; first ejector pin portion 51; second ejector pin portion 52; ejector pin guide plate 60; second limiting hole 601; limiting member 70; first limiting portion 71; second limiting portion 72; elastic member 80; first direction P1 Detailed implementation manners
[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.
[0022] In the description of the present utility model, the meaning of "a plurality of" is more than two. Understandings such as "greater than", "less than", and "exceeding" do not include the present number, and understandings such as "above", "below", and "within" include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0023] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.
[0024] In the present utility model, unless otherwise clearly defined, terms such as "arranged", "installed", and "connected" should be understood in a broad sense. For example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected, detachably connected, or integrally formed; they can be mechanically connected; they can be the communication inside two components or the interaction relationship between two components. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.
[0025] An injection mold is a tool for producing plastic products and also a tool for imparting a complete structure and precise dimensions to plastic products. Injection molding is a processing method used in mass production of some complex-shaped parts. Specifically, it means injecting the heat-melted plastic into the mold cavity at high pressure by an injection molding machine, and after cooling and solidifying, a formed product is obtained. In manufacturing, some injection molds have a relatively large number of ejector pins. Among them, there is a type where the number of cavities of a certain type of product is small but the number of ejector pins per cavity is very large and dense, and there is also a situation where the number of cavities is large and the corresponding ejector pins are also numerous. When maintaining and servicing the above-mentioned molds, due to the large number of ejector pins and the fact that the ejector pins are relatively thin and not easy to penetrate, a long time is spent on penetrating the ejector pins. The traditional mold penetrates the ejector pins one by one from the ejector plate into the corresponding ejector pin holes in the mold core. Due to the large number and density of the ejector pins, the ejector pins are prone to penetrate the wrong hole positions and waste time. At the same time, during the maintenance and servicing of the mold, the process of disassembling and reinstalling the ejector pins will cause a waste of time.
[0026] Refer to Figure 1 , to solve the above problems, an embodiment of the present application provides an injection mold 10, including a housing 20, a base 30 and a mold core 40. The mold core 40 and the base 30 are respectively located on opposite sides of the housing 20. The base 30 is movably connected to the housing 20. A movable template cavity 21 is provided on one side of the housing 20 close to the mold core 40. The mold core 40 is slidably disposed in the movable template cavity 21 of the housing 20. A guide member 23 is provided at the bottom of the movable template cavity 21. The mold core 40 is provided with a first through hole 41 along a first direction P1. The guide member 23 extends into the first through hole 41 to guide the mold core 40 when it enters the movable template cavity 21; the base 30 is provided with an ejector pin 50. The ejector pin 50 includes a connected first ejector pin portion 51 and a second ejector pin portion 52. The second ejector pin portion 52 is connected to the base 30. A first guide groove 22 communicating with the movable template cavity 21 is provided on one side of the housing 20 facing the base 30. The first ejector pin portion 51 extends into the first guide groove 22 to the movable template cavity 21; when the mold core 40 slides to the bottom of the movable template cavity 21 and the base 30 moves toward the movable template cavity 21, the first ejector pin portion 51 extends into the mold core 40.
[0027] Refer to Figure 1, in the injection mold 10, the injection mold 10 includes a housing 20, a base 30 and a mold core 40. The mold core 40 and the base 30 are respectively located on opposite sides of the housing 20. The mold core 40 is a precision part for the key operation of the central part of the mold. Parts can be injection-molded in the mold core 40. After the parts are injection-molded in the mold core 40, the parts completed in the mold core 40 can be pushed out through the ejector pin 50. The mold core 40 is provided with a first through hole 41 along the first direction P1. The first through hole 41 is opened along the first direction P1. A guide member 23 is provided at the bottom of the cavity of the moving template cavity 21. The guide member 23 extends into the first through hole 41 to guide the mold core 40 when it enters the moving template cavity 21, enabling the mold core 40 to enter the moving template cavity 21 along a specified path. The base 30 is used to place the ejector pin 50. The ejector pin 50 is used to eject the product and let the product be ejected from the mold cavity. In mold manufacturing, the main function of the ejector pin 50 is to push the ejector pin plate through the push rod of the injection molding machine, and then drive the ejector pin 50 to eject the molded product from the mold cavity. This process relies on the external force of the injection molding machine and realizes the ejection of the product through the movement of the ejector pin plate. The ejector pin 50 includes a first ejector pin part 51 and a second ejector pin part 52. The first ejector pin part 51 is connected to the second ejector pin part 52. The second ejector pin part 52 is connected to the base 30. The base 30 can drive the ejector pin 50 to move. When the base 30 drives the ejector pin 50 to move towards the mold core 40 side, when the first ejector pin part 51 of the ejector pin 50 contacts the mold core 40, the parts completed in the mold core 40 can be pushed out. A moving template cavity 21 is provided on one side of the housing 20 close to the mold core 40. During the injection process, after the moving template and the fixed template are closed, the part between the cavity and the core is injection-molded to generate the product. The cavity and the core are the product-forming parts of the mold and are respectively fixedly assembled on the moving template and the fixed template. The moving template cavity 21 is a very important part of the mold, and its quality and design directly affect the quality of the final product and the life of the mold. The moving template cavity 21 can accommodate the mold core 40. The mold core 40 can slide into the moving template cavity 21. A first guide groove 22 is provided on the side of the housing 20 facing the base 30. The first ejector pin part 51 of the ejector pin 50 can extend into the first guide groove 22. The first guide groove 22 communicates with the moving template cavity 21 so that the first ejector pin part 51 can extend into the first guide groove 22 to the moving template cavity 21. When the mold core 40 slides to the bottom of the moving template cavity 21 and the base 30 moves towards the moving template cavity 21 side, the first ejector pin part 51 extends into the mold core 40 and can eject the parts that have been injection-molded in the mold core 40.When maintenance and repair of the mold core 40 are required, the mold core 40 is moved along the side away from the base 30. The guiding member 23 guides the movement of the mold core 40 so that the mold core 40 is disengaged from the moving template cavity 21 to facilitate the operator's inspection and maintenance of the mold core 40, avoiding the process of removing the ejector pin 50 in the prior art. The repaired and maintained mold core 40 can be moved through the above process, and the guiding member 23 guides the movement of the mold core 40, sliding the mold core 40 to the bottom of the moving template cavity 21. Due to the guiding of the guiding member 23, it can ensure that the ejector pin 50 smoothly contacts the mold core 40, and thus the injection molding process of the next process can be realized. It can achieve the maintenance and repair of the injection mold 10 without removing the ejector pin 50, so as to improve the maintenance efficiency of the injection mold 10.
[0028] Continue to refer to Figure 1 In some embodiments, the guiding member 23 includes a guiding column 230. The guiding column 230 is spaced from the first through hole 41. When the mold core 40 moves into the moving template cavity 21 along the first direction P1, the guiding column 230 can penetrate through the first through hole 41 to realize the limit of the moving direction of the mold core 40. In some embodiments, the width of the first through hole 41 is greater than the width of the guiding column 230. The guiding column 230 is parallel to the first guiding groove 22, and the first ejector pin portion 51 of the ejector pin 50 moves in the first guiding groove 22, and the guiding column 230 moves in the first through hole 41, and the two moving processes do not affect each other. In some embodiments, the guiding column 230 penetrates through the bottom of the moving template cavity 21 from the side of the housing 20 close to the base 30, and the top end of the guiding column 230 on the side close to the mold core 40 is close to the upper edge of the cavity of the moving template cavity 21 to ensure the limited movement of the mold core 40 in the moving template cavity 21. Specifically, when the mold core 40 slides into the moving template cavity 21, the guiding column 230 extends into the first through hole 41 along the first direction P1 to limit the movement of the mold core 40 along the guiding column 230 in the first direction P1. Correspondingly, when maintenance and repair of the mold core 40 are required, the mold core 40 can be slid out of the moving template cavity 21, and the guiding column 230 slides out of the first through hole 41 along the first direction P1. Further, when the maintenance and repair work of the mold core 40 is completed, only the above first process needs to be repeated, and the guiding column 230 extends into the first through hole 41 along the first direction P1 to limit the movement of the mold core 40 along the guiding column 230 in the first direction P1. In the prior art, the ejector pin 50 of the traditional mold only has a sliding fit with the mold core 40 part at the glue-sealing position. It is almost impossible to load the mold core 40 into the moving template cavity 21 from the parting surface without removing the ejector pin 50. However, the injection mold 10 provided by the present application can achieve the maintenance and repair of the injection mold 10 without removing the ejector pin 50, with simple operation and can effectively improve the maintenance efficiency of the injection mold 10.
[0029] Refer to Figures 1 to 4, in some embodiments, the number of ejector pins 50 is multiple. The multiple ejector pins 50 can simultaneously eject multiple injection-molded parts in the mold core 40, so as to improve the working efficiency of the injection mold 10. Correspondingly, the number of the first guide grooves 22 is multiple. The multiple ejector pins 50 are arranged at intervals, and the multiple first guide grooves 22 are arranged at intervals, so that each ejector pin 50 can smoothly extend into the corresponding first guide groove 22. In some embodiments, the mold core 40 is provided with an ejector pin guide groove 42 on the side close to the housing 20. When the mold core 40 slides to the bottom of the moving template cavity 21, after the first ejector pin part 51 of the ejector pin 50 passes through the first guide groove 22, it can extend into the ejector pin guide groove 42. In some embodiments, the opening of the ejector pin guide groove 42 is provided with an ejector pin guiding angle 420 to ensure that the ejector pin 50 can smoothly penetrate into the parts in the mold core 40. Part of the first ejector pin part 51 is disposed in the ejector pin guide groove 42 so that the ejector pin 50 abuts against the mold core 40, so as to realize the process of smoothly ejecting the parts in the mold core 40 by the ejector pin 50.
[0030] Refer to Figures 1 to 3, in some embodiments, the injection mold 10 further includes a thimble guide plate 60. The thimble guide plate 60 can ensure that the thimble 50 does not deviate during sliding, thereby improving the accuracy and stability of the injection mold 10. Specifically, the thimble guide plate 60 is sleeved on the guide post 230 and is slidably disposed in the moving template cavity 21. Since the first thimble portion 51 of the thimble 50 is relatively long, when the first thimble portion 51 enters the moving template cavity 21, the position of the first thimble portion 51 is not easily fixed. By passing the first thimble portion 51 of the thimble 50 through the thimble guide plate 60, the thimble guide plate 60 can limit the first thimble portion 51, so that when the mold core 40 moves towards the moving template cavity 21, the first thimble portion 51 can more smoothly abut against the thimble guide groove 42. In some embodiments, the injection mold 10 further includes a limiting member 70. The limiting member 70 can be connected to the thimble guide plate 60. When the thimble guide plate 60 is located on the upper side of the moving template cavity 21, the thimble guide plate 60 can be pulled towards the base 30 side by pulling the limiting member 70 until it reaches the bottom of the moving template cavity 21. A first limiting hole 210 is formed in the cavity bottom of the moving template cavity 21, and a second limiting hole 601 is formed on the side of the thimble guide plate 60 away from the mold core 40. The limiting member 70 passes through the first limiting hole 210 and is fixed in the second limiting hole 601. The limiting member 70 can slide in the first limiting hole 210 and can be connected to the second limiting hole 601. In some embodiments, the limiting member 70 can be a limiting screw. The limiting member 70 includes a first limiting portion 71 and a second limiting portion 72, and the first limiting portion 71 and the second limiting portion 72 are connected. When the top end of the first limiting portion 71 passes through the first limiting hole 210 and is fixed to the thimble guide plate 60, and the top end of the first limiting portion 71 is connected to the second limiting hole 601, at this time, when the limiting member 70 is pushed, the top end of the first limiting portion 71 is still connected to the thimble guide plate 60, and the first limiting portion 71 can slide in the first limiting hole 210 and then extend into the moving template cavity 21. During this process, the thimble guide plate 60 moves in the moving template cavity 21 under the push of the limiting member 70.
[0031] Refer to Figure 1, in some embodiments, the first limiting hole 210 includes a first limiting hole section 2101 and a second limiting hole section 2102. The first limiting hole section 2101 is close to the bottom of the cavity of the moving template cavity 21. The width of the first limiting hole section 2101 is smaller than the width of the second limiting hole section 2102. The width of the second limiting part 72 is larger than the width of the first limiting hole section 2101. When the first limiting part 71 pushes the ejector pin guide plate 60 to continuously move towards the side close to the mold core 40, since the width of the second limiting part 72 is larger than the width of the first limiting hole section 2101, the second limiting part 72 cannot enter the first limiting hole section 2101, thereby controlling the moving stroke of the limiting member 70 and the ejector pin guide plate 60. The width of the second limiting part 72 is smaller than or equal to the width of the second limiting hole section 2102, so that the second limiting part 72 can move within the second limiting hole section 2102, so that the limiting member 70 drives the ejector pin guide plate 60 to move within the moving template cavity 21. In some embodiments, a third limiting hole 31 is provided on the side of the base 30 close to the housing 20. When the base 30 moves relative to the housing 20, the second limiting part 72 abuts against the third limiting hole 31, and the width of the second limiting part 72 is smaller than the width of the third limiting hole 31. In some embodiments, an elastic member 80 is provided between the base 30 and the housing 20. The elastic members 80 are symmetrically arranged on both sides of the housing 20. When the first ejector pin part 51 abuts against the housing 20 on the side close to the housing 20, the elastic member 80 is in a compressed state. The elastic member 80 can make the base 30 move closer to the housing 20, and at the same time the elastic member 80 can also make the base 30 return to the initial position.
[0032] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0033] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. An injection mold, characterized in that, It includes a housing, a base and a core. The core and the base are respectively located on opposite sides of the housing. The base is movably connected to the housing. A moving template cavity is provided on one side of the housing close to the core. The core is slidably arranged in the moving template cavity of the housing. A guiding member is provided at the bottom of the moving template cavity. The core is provided with a first through hole along a first direction. The guiding member extends into the first through hole to guide the core when it enters the moving template cavity. The base is provided with a ejector pin. The ejector pin includes a connected first ejector pin part and a second ejector pin part. The second ejector pin part is connected to the base. A first guiding groove communicating with the moving template cavity is provided on one side of the housing facing the base. The first ejector pin part extends into the first guiding groove to the moving template cavity. When the core slides to the bottom of the moving template cavity and the base moves towards the moving template cavity side, the first ejector pin part extends into the core.
2. The injection mold according to claim 1, characterized in that, The guiding member includes a guiding column. The guiding column is arranged at an interval from the first through hole. The guiding column is parallel to the first guiding groove. When the core slides into the moving template cavity, the guiding column extends into the first through hole along the first direction to limit the core from moving along the guiding column in the first direction.
3. The injection mold according to claim 2, characterized in that, The guiding column penetrates from the side of the housing close to the base to the bottom of the moving template cavity.
4. The injection mold according to claim 2, characterized in that, The number of the ejector pins is multiple. The number of the first guiding grooves is multiple. The multiple ejector pins are arranged at intervals. The multiple first guiding grooves are arranged at intervals. The ejector pins and the first guiding grooves are in one-to-one correspondence.
5. The injection mold according to claim 2, characterized in that, The injection mold further includes an ejector pin guiding plate. The ejector pin guiding plate sleeves the guiding column and is slidably arranged in the moving template cavity. The first ejector pin part of the ejector pin penetrates through the ejector pin guiding plate.
6. The injection mold according to claim 5, wherein The injection mold further includes a limiting member. A first limiting hole is provided at the bottom of the moving template cavity. A second limiting hole is provided on the side of the ejector pin guiding plate away from the core. The limiting member penetrates through the first limiting hole and is fixed into the second limiting hole. The limiting member can slide in the first limiting hole.
7. The injection mold according to claim 6, wherein The first limiting hole includes a first limiting hole section and a second limiting hole section. The first limiting hole section is close to the bottom of the moving template cavity. The width of the first limiting hole section is smaller than that of the second limiting hole section. The limiting member includes a sequentially connected first limiting part and a second limiting part. The first limiting part penetrates through the first limiting hole and is fixed to the ejector pin guiding plate. The width of the second limiting part is larger than that of the first limiting hole section and smaller than or equal to that of the second limiting hole section.
8. The injection mold according to claim 7, wherein, A third limiting hole is provided on the side of the base close to the housing. When the base moves relative to the housing, the second limiting part abuts against the third limiting hole.
9. The injection mold according to claim 1, characterized in that, The core is provided with an ejector pin guiding groove along the side close to the housing. An ejector pin guiding angle is provided at the opening of the ejector pin guiding groove. Part of the first ejector pin part penetrates through the ejector pin guiding groove so that the ejector pin abuts against the core.
10. The injection mold according to claim 1, wherein, An elastic member is provided between the base and the housing. The elastic members are symmetrically arranged on both sides of the housing. When the first thimble portion abuts against the housing near one side of the housing, the elastic member is in a compressed state.