Injection mold

Abstract

This utility model belongs to the field of mold technology and discloses an injection mold, including a first side core, a second side core, a fixed mold insert, and a core-pulling assembly. The first side core and the second side core are spaced apart; a punch is provided in the middle of the fixed mold insert. In the mold-closed state, the punch is located between the first side core and the second side core, and both the first side core and the punch form a cavity group; the core-pulling assembly includes a slide, multiple cores, and an elastic element. The slide is slidably connected to the fixed mold insert. One end of the core is disposed on the slide, and the other end of the core corresponds to the cavity. When the mold opens, the elastic element pushes the slide to move the core to maintain its fit with the product until the punch moves away from the space between the first side core and the second side core, at which point the core begins to detach from the product. This injection mold can increase the number of products ejected.

Description

Technical Field

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

[0002] Currently, in the injection molding process of ejector pin products with built-in undercut structures at the ends, the injection mold typically uses two sliding inserts to form the outer contour of the product, and the undercut structure is formed by the upper undercut core. This type of injection mold can only form a single row of cavities between the two side core blocks, resulting in a small number of products ejected and low production efficiency.

[0003] Therefore, there is an urgent need to develop an injection mold to solve the above-mentioned technical problems. Utility Model Content

[0004] This utility model provides an injection mold that can increase the number of products produced, improve production efficiency, and has a simple structure that is easy to process and maintain.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Injection molds, including:

[0007] A first side core and a second side core are provided at intervals;

[0008] A fixed mold insert has a punch in its center. In the mold closed state, the punch is located between the first side core and the second side core. The first side core and the second side core together with the punch form a cavity group. The cavity group includes multiple cavities, which are used to accommodate the product to be formed.

[0009] The core-pulling assembly includes a carriage, multiple cores, and an elastic element. The carriage is slidably connected to the fixed mold insert. One end of each core is disposed on the carriage, and the other end of each core corresponds to the cavity. The core is used to form the undercut structure of the product. When the mold is opened, the elastic element pushes the carriage to keep the core in contact with the product until the punch disengages from the first side core and the second side core, at which point the core begins to detach from the product.

[0010] Optionally, on the fixed mold insert, through hole groups corresponding to each cavity group are provided on both sides of the punch. Each through hole group includes at least one first through hole, and each first through hole is provided with a slide, which is slidably disposed in the first through hole.

[0011] Optionally, the carriage includes a mounting part with multiple connecting holes, each connecting hole corresponding to a core, one end of the core being inserted into the corresponding connecting hole; the punch covers the first through hole, and in the open mold state, the mounting part can approach and abut against the punch under the action of the elastic member.

[0012] Optionally, a limiting part is provided on the side of the mounting part away from the punch, and in the mold-closed state, the bottom of the limiting part abuts against the first side core or the second side core.

[0013] Optionally, the limiting part is provided with a plurality of limiting grooves on the side facing the core, and the limiting grooves are provided one-to-one with the core, and the groove wall of the limiting groove is attached to the outer peripheral wall of the core corresponding to it.

[0014] Optionally, the top of the mounting part is provided with a groove, and the connecting hole communicates with the groove; the core includes a rod and a limiting head disposed at one end of the rod, the rod passes through the connecting hole, and the limiting head is placed in the groove and abuts against the bottom wall of the groove.

[0015] Optionally, the carriage further includes a cover plate, which is fastened to the mounting part and covers the core. A fixed mold base is provided above the fixed mold insert. One end of the elastic member abuts against the cover plate, and the other end abuts against the fixed mold base.

[0016] Optionally, the cover plate is provided with a connecting groove, and the two opposite groove walls of the connecting groove are both first inclined surfaces, and the two first inclined surfaces are inclined in a direction that approaches each other.

[0017] The top of the mounting part is provided with two protruding ribs, which are respectively located on opposite sides of the connecting hole. The sidewalls of the two protruding ribs that are facing away from each other are both second inclined surfaces. The two second inclined surfaces are inclined in a direction away from each other. The second inclined surfaces are arranged one-to-one with the first inclined surfaces. The two protruding ribs are inserted into the connecting groove from one end of the connecting groove, and the second inclined surface and the first inclined surface corresponding to it are in contact.

[0018] Optionally, the injection mold further includes a moving template, wherein the first side core and the second side core are both connected to a slider, the slider being slidably connected to the moving template, and each slider is provided with a corresponding driving member, the driving member being used to drive the slider to move the first side core or the second side core connected to it.

[0019] Optionally, the moving template moves up and down in the vertical direction to perform mold closing and opening; the driving component is a bent pin that slides through the slider, the bent pin includes a vertical section and an inclined section connected to each other, the fixed mold insert is fixed on the fixed template, the vertical section is connected to the fixed template, when the vertical section is in sliding engagement with the slider, the slider remains stationary, when the inclined section is in engagement with the slider, it can drive the slider to slide.

[0020] The beneficial effects of this utility model are:

[0021] This invention provides an injection mold, including a first side core, a second side core, a fixed mold insert, and a core-pulling assembly. The core-pulling assembly includes a slide, a core, and an elastic element. In the closed state, both the first and second side cores form a cavity group with the punch on the fixed mold insert, meaning the injection mold has two cavity groups. This allows the injection mold to process two sets of products simultaneously, doubling the number of products produced compared to conventional injection molds and improving production efficiency. Furthermore, the injection mold has a simple structure, facilitating processing and maintenance.

[0022] During mold opening, under the action of the elastic element, the core only begins to detach from the product after the punch has moved away from the first and second side cores. That is, the core is demolded after the product has a certain deformation space. This setting reduces the risk of product damage during core demolding and improves the product's processing yield. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a cross-sectional view of the injection mold provided in this embodiment of the utility model;

[0025] Figure 2 yes Figure 1 Enlarged view at point A;

[0026] Figure 3 This is a schematic diagram of the structure of the first side core and the second side core provided in the embodiment of this utility model;

[0027] Figure 4 This is an assembly diagram of the fixed mold insert and the core-pulling assembly from one perspective provided in an embodiment of this utility model;

[0028] Figure 5This is an assembly diagram of the fixed mold insert and the core-pulling assembly from another perspective provided by an embodiment of this utility model;

[0029] Figure 6 This is a schematic diagram of the fixed mold insert from one perspective provided in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the fixed mold insert from another perspective provided by an embodiment of the present invention;

[0031] Figure 8 This is an assembly drawing of the carriage, core, and cover plate provided in an embodiment of the present utility model;

[0032] Figure 9 This is an exploded view of the carriage provided in an embodiment of the present invention;

[0033] Figure 10 This is an exploded view of the carriage, core, and cover plate provided in an embodiment of the present utility model;

[0034] Figure 11 This is a schematic diagram of the structure of the carriage provided in this embodiment of the utility model.

[0035] In the picture:

[0036] 10. Products;

[0037] 110. First side core; 111. First molding surface; 120. Second side core;

[0038] 200. Fixed mold insert; 210. Punch; 211. Second forming surface; 220. First through hole;

[0039] 300. Core-pulling assembly; 310. Carriage; 311. Mounting part; 3111. Connecting hole; 3112. Groove; 3113. Rib; 3114. Second inclined surface; 312. Limiting part; 3121. Limiting groove; 313. Cover plate; 3131. Connecting groove; 3132. First inclined surface; 320. Core; 321. Rod part; 322. Limiting head; 330. Elastic element;

[0040] 400, Fixed mold base; 500, Moving mold insert; 600, Moving mold plate; 700, Slider; 800, Bent pin; 810, Vertical section; 820, Inclined section; 900, Base plate; 910, Ejector pin; 1000, Fixed mold plate. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0042] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0045] This embodiment provides an injection mold that can increase the number of products produced, improve production efficiency, and has a simple structure that is easy to process and maintain.

[0046] Specifically, such as Figures 1-5 As shown, the injection mold includes a first side core 110, a second side core 120, a fixed mold insert 200, and a core-pulling assembly 300.

[0047] The first side core 110 and the second side core 120 are spaced apart. A punch 210 is located in the center of the fixed mold insert 200. In the mold-closed state, the punch 210 is positioned between the first side core 110 and the second side core 120. Both the first side core 110 and the second side core 120, together with the punch 210, form a cavity group. The cavity group includes multiple cavities used to accommodate the product 10 to be molded. That is, this injection mold has two cavity groups, enabling it to process two sets of products 10 simultaneously. Compared to conventional injection molds, the number of products produced is doubled, improving production efficiency. Furthermore, the injection mold has a simple structure, facilitating processing and maintenance.

[0048] The core-pulling assembly 300 includes a carriage 310, multiple cores 320, and an elastic element 330. The carriage 310 is slidably connected to the fixed mold insert 200. One end of the core 320 is disposed on the carriage 310, and the other end of the core 320 is disposed corresponding to the cavity. The core 320 is used to form the undercut structure of the product 10.

[0049] During mold opening, the two side cores 100 separate from the punch 210 initially. However, under the action of the elastic element 330, the slide 310 continuously drives the core 320 to maintain its fit with the product. Once the punch 210 leaves the space between the first side core 110 and the second side core 120, the product 10 has a certain deformation space. Then, during the continued mold opening process, the elastic potential energy of the elastic element 330 is fully released, and the core 320 gradually separates from the product 10. This design reduces the risk of damage to the product 10 during core 320 demolding and improves the processing yield of the product 10.

[0050] Optionally, see [link to relevant documentation] Figure 3 and Figure 5 In one possible embodiment, the first side core 110 and the second side core 120 are each provided with a plurality of first forming surfaces 111 on their sidewalls near the punch 210. The punch 210 is provided with a plurality of second forming surfaces 211 on its sidewalls opposite to the first side core 110 and the second side core 120. The second forming surfaces 211 are provided in a one-to-one correspondence with the first forming surfaces 111, and the first forming surfaces 111 and their corresponding second forming surfaces 211 surround the forming cavity.

[0051] For example, such as Figure 3 As shown, in this embodiment, the first side core 110 and the second side core 120 are spaced apart along the first direction, that is, the first side core 110 and the second side core 120 are provided with a plurality of first forming surfaces 111 on their opposite sidewalls along the first direction. The punch 210 extends along a second direction perpendicular to the first direction, and the punch 210 is provided with a plurality of second forming surfaces 211 on its opposite sidewalls along the first direction.

[0052] Optionally, in one possible embodiment, the product 10 is cylindrical, therefore, both the first molding surface 111 and the second molding surface 211 are curved surfaces. Furthermore, the core 320 is also cylindrical, and in the mold-closed state, the end of the core 320 is inserted into the cavity.

[0053] Optionally, see [link to relevant documentation] Figure 2 In one possible embodiment, the first molding surface 111 and the second molding surface 211 form a partial cavity of the molded product 10. The injection mold also includes a moving mold insert 500, with the first side core 110 and the second side core 120 both disposed above the moving mold insert 500. The moving mold insert 500 has a plurality of partial cavities for accommodating the product 10, and the cavities on the moving mold insert 500 are corresponding one-to-one with the cavities formed by the first molding surface 111 and the second molding surface 211, together forming a complete cavity.

[0054] Furthermore, such as Figures 3-8 As shown, on the fixed mold insert 200, through-hole groups corresponding to each cavity group are provided on both sides of the punch 210. Each through-hole group includes at least one first through-hole 220, and each first through-hole 220 is provided with a corresponding slide 310, which is slidably disposed within the first through-hole 220. The sliding connection between the slide 310 and the fixed mold insert 200 is achieved through the cooperation of the first through-hole 220 and the slide 310. The structure is simple, and the sliding of the slide 310 is relatively smooth.

[0055] Alternatively, in one possible embodiment, each via group includes two first vias 220.

[0056] Furthermore, such as Figure 2 , Figure 9 and Figure 10 As shown, the carriage 310 includes a mounting part 311, which has multiple connecting holes 3111. Each connecting hole 3111 corresponds to a core 320, one end of which is inserted into the corresponding connecting hole 3111. The core 320 is fixed to the carriage 310 by inserting it into the connecting hole 3111. The structure is simple and easy to assemble.

[0057] Furthermore, the punch 210 covers the first through hole 220. When the mold is opened, the first side core 110 and the second side core 120 move away from the fixed mold insert 200 in the vertical direction, and the elastic element 330 pushes the slide 310 to drive the core 320 to cooperate with the product 10. Therefore, at the beginning of the mold opening, the first side core 110 and the second side core 120 separate from the fixed mold insert 200, and the mounting part 311 drives the core 320 to move with the product 10 under the action of the elastic element 330 until the mounting part 311 abuts against the punch 210. After that, as the first side core 110 and the second side core 120 continue to move away from the fixed mold insert 200 in the vertical direction, the mounting part 311 is limited by the punch 210, so that the core 320 separates from the product 10, and the core 320 is demolded.

[0058] By setting the punch 210 to restrict the mounting part 311, the demolding time of the core 320 during mold opening can be limited, thus improving the reliability of mold opening. It can be understood that by designing the thickness of the punch 210 along the vertical direction, the punch 210 can be separated from the first side core 110 and the second side core 120 before abutting against the mounting part 311. This ensures that the punch 210 demolds first, allowing the product 10 a certain deformation space, before the core 320 is demolded, thus avoiding damage to the product 10 due to forced demolding of the core 320.

[0059] That is, when the mold is closed, the distance between the vertical mounting part 311 and the punch 210 can be set to be equal to the height of the punch 210 between the first side core 110 and the second side core 120.

[0060] Optionally, see [link to relevant documentation] Figure 2 , Figures 8-11 The mounting portion 311 has a limiting portion 312 on the side away from the punch 210 along the first direction. When the mold is closed, the bottom of the limiting portion 312 abuts against the first side core 110 or the second side core 120. It can be understood that the limiting portion 312 opposite to the first side core 110 abuts against the first side core 110, and the limiting portion 312 opposite to the second side core 120 abuts against the second side core 120. This arrangement allows the length of the core 320 entering the cavity to be limited by the cooperation of the limiting portion 312 with the first side core 110 and the second side core 120, thereby ensuring the accuracy of the core 320's entry into the mold.

[0061] Optionally, the limiting part 312 and the mounting part 311 can be an integral structure, which is convenient for processing and has high structural stability.

[0062] Further, see also Figure 2 , Figures 8-11The limiting part 312 has multiple limiting grooves 3121 on its side facing the core 320. Each limiting groove 3121 corresponds to a core 320, and the groove wall of the limiting groove 3121 fits against the outer peripheral wall of the corresponding core 320. Through the cooperation between the limiting groove 3121 and the core 320, the core 320 can be supported in the radial direction, reducing the risk of bending of the core 320 and improving the processing accuracy of the product 10.

[0063] Optionally, see [link to relevant documentation] Figure 9 and Figure 10 As shown, the top of the mounting part 311 is provided with a groove 3112, and the connecting hole 3111 communicates with the groove 3112. The core 320 includes a rod part 321 and a limiting head 322 disposed at one end of the rod part 321. The rod part 321 passes through the connecting hole 3111, and the limiting head 322 is placed in the groove 3112 and abuts against the bottom wall of the groove 3112. Through the cooperation between the groove 3112 and the limiting head 322, on the one hand, the limiting head 322 can be protected by the groove wall of the groove 3112; on the other hand, the reliability of the connection between the core 320 and the mounting part 311 can be improved.

[0064] Further, see also Figure 2 , Figure 4 and Figure 8 The carriage 310 also includes a cover plate 313, which is fastened to the mounting part 311 and covers the top of the core 320. A fixed mold base 400 is provided above the fixed mold insert 200. One end of the elastic member 330 abuts against the cover plate 313, and the other end abuts against the fixed mold base 400. By providing the cover plate 313, the core 320 can be protected, and the elastic member 330 can be fixed.

[0065] Optionally, see [link to relevant documentation] Figures 6-8The cover plate 313 has a through connecting groove 3131. The two walls of the connecting groove 3131 are both first inclined surfaces 3132, which are inclined towards each other. The top of the mounting part 311 has two protruding ribs 3113, located on opposite sides of the connecting hole 3111. The opposing sidewalls of the two protruding ribs 3113 are both second inclined surfaces 3114, which are inclined away from each other. The second inclined surfaces 3114 correspond one-to-one with the first inclined surfaces 3132. The two protruding ribs 3113 are inserted into the connecting groove 3131 from one end, and the second inclined surfaces 3114 and their corresponding first inclined surfaces 3132 are in contact. The connection between the cover plate 313 and the mounting part 311 is achieved through the cooperation of the protruding ribs 3113 and the connecting groove 3131. The structure is simple and easy to assemble. By cooperating with the first inclined surface 3132 and the second inclined surface 3114, the movement of the cover plate 313 in the vertical direction can be limited, reducing the risk of the cover plate 313 separating from the mounting part 311 during the mold closing or opening process, thereby improving the reliability of the core 320 in the process of molding the product 10.

[0066] Optionally, in this embodiment, the connecting groove 3131 extends along a second direction. Two first inclined surfaces 3132 are opposite each other along a first direction. Correspondingly, two protruding ribs 3113 extend along the second direction and are opposite each other along the first direction.

[0067] Further, see also Figure 1 The injection mold also includes a moving platen 600. The first side core 110 and the second side core 120 are both connected to a slider 700. The slider 700 is slidably connected to the moving platen 600. Each slider 700 is equipped with a corresponding driving component, which drives the slider 700 to move the connected first side core 110 or second side core 120. By allowing the first side core 110 and the second side core 120 to move closer to or further away from each other, demolding is facilitated.

[0068] Optionally, in one possible embodiment, when the mold is opened, the punch 210 first disengages from between the first side core 110 and the second side core 120, then the core 320 disengages from the product 10, and finally, the drive member drives the slider 700 to move the first side core 110 and the second side core 120 away from the product 10.

[0069] Alternatively, in one possible embodiment, the driving component can be a cylinder, a hydraulic cylinder, or the like.

[0070] Optionally, see [link to relevant documentation] Figure 1In another possible embodiment, the moving template 600 moves vertically up and down to perform mold closing and opening. The driving component is a bent pin 800 that slides through the slider 700. The bent pin 800 includes a vertical section 810 and an inclined section 820 connected to each other. The fixed mold insert 200 is fixed on the fixed template 1000. The vertical section 810 is connected to the fixed template 1000. When the vertical section 810 is in sliding engagement with the slider 700, the slider 700 remains stationary. When the inclined section 820 is in engagement with the slider 700, it can drive the slider 700 to slide.

[0071] At the initial stage of mold opening, the vertical section 810 engages with the slider 700. That is, when the punch 210 moves away from the first side core 110 and the second side core 120, the first side core 110 and the second side core 120 remain stationary relative to the fixed template 1000 and maintain contact with the product 10. After the fixed template 1000 moves downward in the vertical direction for a certain distance, the inclined section 820 engages with the slider 700. At this time, the side core 100 moves away from the product 10.

[0072] This design facilitates smooth and reliable mold opening, reducing the risk of product damage.

[0073] Further, see also Figure 1 The injection mold also includes a base plate 900, which is located below the fixed mold plate. The base plate 900 has multiple ejector pins 910, each corresponding to a cavity that accommodates the product 10. One end of each ejector pin 910 can extend into the cavity. After mold opening, pushing the base plate 900 upwards ejects the product 10 through the ejector pins 910, achieving demolding.

[0074] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An injection mold, characterized in that, include: A first side core (110) and a second side core (120) are provided at intervals; A fixed mold insert (200) is provided with a punch (210) in the middle. In the mold closed state, the punch (210) is located between the first side core (110) and the second side core (120). The first side core (110) and the second side core (120) together with the punch (210) form a cavity group. The cavity group includes multiple cavities. The cavities are used to accommodate the product (10) to be formed. The core-pulling assembly (300) includes a slide (310), multiple cores (320), and an elastic element (330). The slide (310) is slidably connected to the fixed mold insert (200). One end of the core (320) is disposed on the slide (310), and the other end of the core (320) corresponds to the cavity. The core (320) is used to form the undercut structure of the product (10). When the mold is opened, the elastic element (330) pushes the slide (310) to drive the core (320) to first maintain its engagement with the product (10) until the punch (210) disengages from the first side core (110) and the second side core (120), at which point the core (320) begins to disengage from the product (10).

2. The injection mold according to claim 1, characterized in that, On the fixed mold insert (200), through hole groups corresponding to each cavity group are provided on both sides of the punch (210). Each through hole group includes at least one first through hole (220). Each first through hole (220) is provided with a slide (310) and the slide (310) is slidably disposed in the first through hole (220).

3. The injection mold according to claim 2, characterized in that, The carriage (310) includes a mounting part (311), which has a plurality of connecting holes (3111). Each connecting hole (3111) corresponds to a core (320), and one end of the core (320) is inserted into the corresponding connecting hole (3111). The punch (210) covers part of the first through hole (220). In the open mold state, the mounting part (311) can approach and abut against the punch (210) under the action of the elastic member (330).

4. The injection mold according to claim 3, characterized in that, The mounting part (311) has a limiting part (312) on the side away from the punch (210). In the mold closing state, the bottom of the limiting part (312) abuts against the first side core (110) or the second side core (120).

5. The injection mold according to claim 4, characterized in that, The limiting part (312) has a plurality of limiting grooves (3121) on the side facing the core (320). The limiting grooves (3121) are provided one-to-one with the core (320), and the groove wall of the limiting groove (3121) is attached to the outer peripheral wall of the core (320) corresponding to it.

6. The injection mold according to claim 3, characterized in that, The top of the mounting part (311) is provided with a groove (3112), and the connecting hole (3111) communicates with the groove (3112); the core (320) includes a rod part (321) and a limiting head (322) disposed at one end of the rod part (321), the rod part (321) passes through the connecting hole (3111), and the limiting head (322) is placed in the groove (3112) and abuts against the bottom wall of the groove (3112).

7. The injection mold according to claim 3, characterized in that, The carriage (310) also includes a cover plate (313), which is fastened to the mounting part (311) and covers the core (320). A fixed mold base (400) is provided above the fixed mold insert (200). One end of the elastic member (330) abuts against the cover plate (313) and the other end abuts against the fixed mold base (400).

8. The injection mold according to claim 7, characterized in that, The cover plate (313) is provided with a through connecting groove (3131), and the two opposite groove walls of the connecting groove (3131) are both first inclined surfaces (3132), and the two first inclined surfaces (3132) are inclined in the direction of approaching each other; The top of the mounting part (311) is provided with two protruding ribs (3113). The two protruding ribs (3113) are respectively arranged on opposite sides of the connecting hole (3111). The side walls of the two protruding ribs (3113) that are facing away from each other are both second inclined surfaces (3114). The two second inclined surfaces (3114) are inclined in a direction away from each other. The second inclined surfaces (3114) are arranged in a one-to-one correspondence with the first inclined surfaces (3132). The two protruding ribs (3113) are inserted into the connecting groove (3131) from one end. The second inclined surfaces (3114) and the corresponding first inclined surfaces (3132) are in contact with each other.

9. The injection mold according to any one of claims 1-8, characterized in that, The injection mold further includes a moving template (600). The first side core (110) and the second side core (120) are both connected to a slider (700). The slider (700) is slidably connected to the moving template (600). Each slider (700) is provided with a corresponding driving member. The driving member is used to drive the slider (700) to move the first side core (110) or the second side core (120) connected to it.

10. The injection mold according to claim 9, characterized in that, The movable template (600) moves up and down in the vertical direction to perform mold closing and mold opening; The driving component is a bent pin (800) that slides through the slider (700). The bent pin (800) includes a vertical section (810) and an inclined section (820) connected to each other. The fixed mold insert (200) is fixed on the fixed template (1000). The vertical section (810) is connected to the fixed template (1000). When the vertical section (810) is in sliding engagement with the slider (700), the slider (700) remains stationary. When the inclined section (820) is in engagement with the slider (700), it can drive the slider (700) to slide.

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