Power connection plug inner frame rubber coating forming die

Abstract

The invention belongs to the technical field of rubber coating dies, and particularly relates to a rubber coating forming die for an inner frame of a power connection plug. The rubber coating forming die comprises a first forming die and a second forming die, the first forming mold comprises a first mold base, a glue injection sleeve and a first mold core, and the glue injection sleeve is arranged in the first mold base; the first mold core is arranged in the first mold base, a rubber runner is arranged in the first mold core, and the second forming mold comprises a second mold base, a second mold core, an ejection mechanism and a positioning mechanism; the second mold core is arranged in a second mounting cavity of the second mold base, the second mold core comprises a plurality of groups of molding cavities, at least two plug pin positioning holes are formed in each molding cavity, the ejection mechanism comprises a movable plate arranged in the second mold base and push rods extending into the plug pin positioning holes, and the positioning mechanism comprises a first sliding seat and a first positioning plate. The first positioning plate is arranged on the first sliding seat, a plurality of first positioning steps are arranged on one side of the first positioning plate, the second mold core or the first mold core is provided with a second positioning plate, and an extruding and pushing piece for pushing the first sliding seat to slide is arranged on the inner side of the first mold seat.

Description

Technical Field

[0001] This invention belongs to the field of overmolding mold technology, and particularly relates to an overmolding mold for the inner frame of an electrical plug. Background Technology

[0002] The typical process for plug injection molding involves placing the semi-finished product, after the wire crimping is completed, into the inner frame, and then placing it into the mold for the plug housing for one-piece injection molding. This process enhances the adhesion between the conductive terminals and the inner frame and housing, ensuring that the conductive terminals remain firmly in the appropriate position during use and are not easily displaced, thus guaranteeing the quality and safety of the plug.

[0003] Chinese invention patent CN108189311B discloses an injection molding equipment for inner frame components and a method for manufacturing the same. The injection molding equipment includes: a control system; an injection molding device for injecting molten material, and the injection molding device is controlled by the control system; and a mold clamping device including at least one first mold and at least one second mold, and having at least one mold cavity adapted to accommodate the at least two plug pins. The mold clamping device is connected to the control system and is controlled by... The control system operates between a mold-closed state and a mold-open state. When the mold-closing device is in the mold-closed state, at least one first mold engages with at least one corresponding second mold to form a sealed cavity between the at least one first mold and the corresponding at least one second mold. The injection molding device injects molten material into the at least one cavity to form the inner frame, so that the inner frame is integrally injection molded onto the at least two connector pins. When the mold-closing device is in the mold-open state, the at least one first mold and the at least one second mold are separated to open the at least one cavity. The at least one first mold has at least one injection cavity and at least two positioning holes, each of which communicates with the at least one injection cavity and mates with an insertion head of a corresponding at least two connector pin. When the insertion head of the at least two connector pins is inserted into the corresponding at least two positioning holes, an inner frame engagement portion of the at least two connector pins is located within the injection cavity. Each of the at least two positioning holes has an opening that suddenly widens, wherein the at least two positioning holes communicate with at least one injection cavity through the opening. At least one second mold has at least two mating holes, wherein each of the at least two mating holes mates with a connecting tail of a corresponding one of the at least two plug pins, wherein in the mold-closed state, the at least two mating holes are aligned with the at least two positioning holes. The at least one second mold also has at least one sealing surface, such that in the mold-closed state, the at least one sealing surface is pressed against the first mold to close the injection cavity of the first mold. The mold-closing device has at least two mold cavities, and the at least two mold cavities are spaced apart between the at least one first mold and the at least one second mold. The at least one first mold has at least two injection cavities, wherein the at least two injection cavities are interconnected, so that in the mold-closed state, at least two interconnected mold cavities are formed between the at least one first mold and the at least one second mold. At least one first mold has a connecting groove and at least two injection cavities, wherein the connecting groove is connected to each of the at least two injection cavities so that, in the mold-closed state, the connecting groove forms a connecting channel to connect all at least two mold cavities. Each of the at least two positioning holes has an opening that abruptly widens, wherein the at least two positioning holes communicate with at least one injection cavity through the opening. At least one second mold has at least two mating holes, wherein the at least two mating holes respectively mate with a connecting tail of a corresponding one of the at least two plug pins, wherein, in the mold-closed state, the at least two mating holes are respectively aligned with the at least two positioning holes.At least one second mold also has at least one sealing surface, such that in the mold-closed state, the at least one sealing surface is in close contact with the first mold to close the injection cavity of the first mold. The mold-closing device has at least two mold cavities, and the at least two mold cavities are spaced apart between the at least one first mold and the at least one second mold. The at least one first mold has at least two injection cavities, wherein the at least two injection cavities are interconnected to form at least two interconnected mold cavities between the at least one first mold and the at least one second mold in the mold-closed state. The at least one first mold has a connecting groove and at least two injection cavities, wherein the connecting groove is connected to each of the at least two injection cavities to form a connecting channel in the mold-closed state to connect all at least two mold cavities.

[0004] A method for manufacturing an inner frame assembly using an inner frame assembly injection molding equipment includes the steps of: (A) inserting a set of plug pins into any first mold in a mold closing device of the inner frame assembly injection molding equipment;

[0005] (B) By means of an injection stage of the mold clamping device, all the first molds in the mold clamping device are moved synchronously so that any one of the first molds is aligned with a second mold of the mold clamping device; (C) The mold clamping device is controlled by a control system of the inner frame component injection molding equipment to operate the mold clamping device so that the mold clamping device is in the mold clamping state; (D) One-piece injection molding of an inner frame joint in each set of plug pins to form a set of inner frame assemblies, and inserting another set of plug pins into another first mold in the mold closing device; (E) The mold closing device is operated by the control system so that it is in the mold opening state; (F) By means of the injection molding table, all the first molds in the mold clamping device are moved synchronously so that the other first mold and the second mold are aligned; (G) By means of a control system, the mold clamping device is controlled to operate so that the mold clamping device is in the mold-closed state; and (H) Integral injection molding of an inner frame joint for each of at least two plug pins to form another set of inner frame assemblies, and removing one set of inner frame assemblies, and after removing one set of inner frame assemblies, performing step (A) again.

[0006] According to the technical solution disclosed in the aforementioned patent documents, the plug pins are positioned in the positioning holes of the mold, and the inner frame of the plug is formed by one-time injection molding through mold closing injection molding, which can improve the molding efficiency of the inner frame. Therefore, the pins are formed by cutting and punching copper strips. As a result, there will be errors in the thickness of the pins. In order to ensure that the pins can be smoothly positioned in the positioning holes, a certain gap needs to be set between the positioning holes and the pins. When the pins with large thickness errors are positioned in the positioning holes, it will cause the pins to tilt, resulting in the pins being tilted after the inner frame is formed, leading to defects. Furthermore, tilted pins may cause the pins to be unable to be demolded. Summary of the Invention

[0007] The purpose of this invention is to provide a molding machine for overmolding the inner frame of a power connector, which solves the technical problem that the pins may tilt during the injection molding of the inner frame of a plug in the prior art.

[0008] To achieve the above objectives, this invention provides a molding die for the inner frame of a power connector, comprising a first molding die and a second molding die. The first molding die includes a first mold base, an injection sleeve, and a first mold core. The first mold base has an installation through hole, and the injection sleeve is disposed within the installation through hole, with an injection hole inside the injection sleeve. A first mounting cavity is provided on the inner side of the first mold base, and the first mold core is disposed within the first mounting cavity. The first mold core has an adhesive flow channel communicating with the injection hole. Multiple branch channels extend from one side of the adhesive flow channel. The second molding die includes a second mold base, a second mold core, an ejection mechanism, and a positioning mechanism. A second mounting cavity is provided on the inner side of the second mold base. The second mold core is disposed within the second mounting cavity. The second mold core includes multiple molding cavities, each of which has at least two pin positioning holes. The ejection mechanism includes a movable plate disposed within the second mold base and a push rod extending into each of the pin positioning holes. One end of the push rod is connected to the movable plate. The positioning mechanism includes a first slide block and a first positioning plate. The first slide block is slidably disposed within the inner side of the second mold base. The first positioning plate is disposed on the first slide block. One side of the first positioning plate has multiple first positioning steps, which are used to limit the pins in the pin positioning holes. A second positioning plate is disposed on one side of either the second mold core or the first mold core. The first molding die and the second molding die are joined together, and the first positioning plate and the second positioning plate cover the molding cavity; the inner side of the first mold base is provided with an extrusion pusher to push the first slide block to slide.

[0009] Furthermore, a first clearance groove is provided on one side of the first positioning step, and a second clearance groove that cooperates with the first clearance groove is provided on the side of the second positioning plate near the first positioning plate; a first inclined surface is provided on one side of each first clearance groove, and a second inclined surface is provided on one side of each second clearance groove.

[0010] Furthermore, a second slide block is slidably provided on the inner side of the second mold base, and the second positioning plate is connected to the second slide block; the extrusion pusher pushes the first positioning plate and the second positioning plate to move towards each other.

[0011] Furthermore, a plurality of second positioning steps are provided on one side of the second positioning plate, and the second positioning steps and the first positioning steps form a sealing groove for clamping the upper end of the pin.

[0012] Furthermore, the molding cavity is provided with two pin positioning holes.

[0013] Furthermore, the extrusion component includes an inclined push block and an inclined insertion rod disposed inside the first mold base; the sides of the first slide and the second slide are both disposed on inclined surfaces that cooperate with the corresponding inclined push block, and the first slide and the second slide are also provided with inclined holes that cooperate with the corresponding inclined insertion rod.

[0014] Furthermore, the second positioning plate is disposed on the inner side of the first mold core; the sidewall of the second positioning plate extends with a plurality of protrusions, a positioning groove is formed between two adjacent protrusions, and a first extension extends on both sides of the protrusions, and a cut is provided on the opposite side of the two first extensions, the cut forming a first inclined surface and a stepped surface; The first positioning plate includes a plurality of inserts, one end of which extends into a plug and two second extensions, and the opposite sides of the two second extensions are provided with a second inclined surface; the second inclined surface and the inner side of the plug form the first positioning step; the first molding mold and the second molding mold are closed, the plug extends into the positioning groove and forms a first positioning clamping groove, and the second inclined surface and the cut form a second positioning clamping groove.

[0015] Furthermore, a third clearance groove is provided on the side of the insert that fits with the second mold core. The third clearance groove is used to clear the welding part of the pin. A sealing step extends from the bottom side of the cut and one side of the positioning groove. The sealing step is used to seal the third clearance groove.

[0016] Furthermore, the first positioning plate consists of two sets, which are positioned opposite each other on both sides of the second mold core; both sides of the second positioning plate are provided with the protrusion.

[0017] Furthermore, each of the aforementioned inserts is independently disposed on the first slide.

[0018] The above-mentioned technical solutions in the rubber-coating mold for the inner frame of the power connector provided in this embodiment of the invention have at least the following technical effects: 1. One end of the pin to be coated is positioned inside the pin positioning hole, and the other end extends out of the pin positioning hole. After the first molding die and the second molding die are closed, the extruder pushes the first slide block so that the first positioning plate and the second positioning plate cooperate. The positioning step of the first positioning plate limits the end of the pin that extends out of the pin positioning hole, correcting and limiting the upper end of the pin. The top side of the molding cavity is sealed by the first positioning plate and the second positioning plate, and then glue is injected into the molding cavity through the injection hole to complete the coating of the pin, thereby forming the inner frame of the plug. Because the first positioning plate and the second positioning plate cooperate, the first positioning step limits and corrects the upper end of the pin, avoiding the problem of excessive gap between the pin and the pin positioning hole and tilting, thus ensuring the quality of the injection molding of the inner frame.

[0019] 2. If any of the first positioning steps has a positioning defect, the first positioning step can be repaired to ensure that each pin is accurately positioned by the first and second positioning plates. This allows for the injection molding of multiple pin inner frames in one operation, while ensuring the quality requirements of the inner frame injection molding are met. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 The diagram shows the structure of Embodiment 1 of the mold for molding the inner frame of the power connector, which is provided as an embodiment of the present invention.

[0022] Figure 2 A cross-sectional view of Embodiment 1 of the present invention provides a molding die for the inner frame of a power connector.

[0023] Figure 3 The structural diagram of the second molding die of Embodiment 1 of the molding die for the inner frame of the power connector provided in this invention is shown.

[0024] Figure 4 This is a cross-sectional view of the second molding die of Embodiment 1 of the plug inner frame rubber coating molding die provided in this invention.

[0025] Figure 5 This is a structural diagram of the first molding die of Embodiment 1 of the power connector inner frame rubber coating molding die provided in this invention.

[0026] Figure 6 This is a structural diagram of the combination of the first positioning plate and the second positioning plate in Embodiment 1 of the power connector inner frame rubber coating molding mold provided in this invention.

[0027] Figure 7 This is a structural diagram of the first positioning plate of Embodiment 1 of the rubber-coated molding die for the inner frame of the power connector provided in this invention.

[0028] Figure 8 This is a structural diagram of the second positioning plate of Embodiment 1 of the rubber-coated molding die for the inner frame of the power connector provided in this invention.

[0029] Figure 9 The diagram shows the structure of Embodiment 2 of the mold for molding the inner frame of the power connector, which is provided for the present invention.

[0030] Figure 10A cross-sectional view of Embodiment 2 of the present invention provides a molding die for the inner frame of a power connector.

[0031] Figure 11 The structural diagram of the second molding die of Embodiment 2 of the power connector inner frame rubber coating molding die is provided for the present invention.

[0032] Figure 12 The structural diagram of the second positioning plate of Embodiment 2 of the mold for forming the inner frame of the power connector is provided for the present invention.

[0033] Figure 13 for Figure 12 A magnified view of a portion of the image.

[0034] Figure 14 The structural diagram of the insert of embodiment 2 of the mold for molding the inner frame of the power connector is provided for the present invention. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, 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 the present invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., 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 the embodiments of the present invention according to the specific circumstances.

[0039] An embodiment of the molding die for the inner frame of the power connector of the present invention. Please refer to... Figures 1 to 14 The plug inner frame encapsulation molding die of this embodiment can simultaneously encapsulate two or three prongs to form the plug inner frame. Specifically, it includes a first molding die 10 and a second molding die 20.

[0040] Reference Figure 1 , Figure 2 , Figure 9 and Figure 10 The first molding die 10 includes a first mold base 100, an injection sleeve 200, and a first mold core 300. The first mold base 100 has a mounting through hole, and the injection sleeve 200 is disposed within the mounting through hole, with an injection hole 201 inside the injection sleeve 200. A first mounting cavity is provided on the inner side of the first mold base 100, and the first mold core 300 is disposed within the first mounting cavity. An adhesive flow channel 301 is provided within the first mold core 300, and the adhesive flow channel 301 communicates with the injection hole 201. Multiple branch channels 302 extend from one side of the adhesive flow channel 301.

[0041] Reference Figure 3 , Figure 4 and Figure 11 The second molding die 20 includes a second mold base 400, a second mold core 500, an ejection mechanism 600, and a positioning mechanism 700. The second mold base 400 has a second mounting cavity on its inner side, and the second mold core 500 is disposed within the second mounting cavity. The second mold core 500 includes multiple molding cavities 501, each molding cavity 501 having at least two pin positioning holes 502. The ejection mechanism 600 includes a movable plate 610 disposed within the second mold base 400, and push rods 620 extending into each pin positioning hole 502. One end of the push rod 620 is connected to the movable plate 610.

[0042] Reference Figure 3 , Figures 6 to 8 , Figures 11 to 14The positioning mechanism 700 includes a first slide block 710 and a first positioning plate 720. The first slide block 710 is slidably disposed inside the second mold base 400, and the first positioning plate 720 is disposed on the first slide block 710. A plurality of first positioning steps 721 are provided on one side of the first positioning plate 720, which are used to limit the insertion pins within the pin positioning holes 502. A second positioning plate 730 is provided on one side of the second mold core 500 or the first mold core 400. The first molding mold 10 and the second molding mold 20 are closed, with the first positioning plate 720 and the second positioning plate 730 covering the molding cavity 501. An extrusion member 110 for pushing the first slide block 710 to slide is provided inside the first mold base 100. After the first molding mold 10 and the second molding mold 20 are closed, each molded part 501 is connected to a branch channel 301.

[0043] In this embodiment, the inner frame of the plug is molded with a rubber coating. One end of the plug to be coated is positioned in the plug positioning hole 502, and the other end extends out of the plug positioning hole 502. After the first molding mold 10 and the second molding mold 20 are closed, the extruder 110 pushes the first slide 710 so that the first positioning plate 720 and the second positioning plate 730 cooperate. The positioning step 721 of the first positioning plate 720 limits the end of the plug that extends out of the plug positioning hole 502, and corrects and limits the upper end of the plug. Furthermore, the top side of the molding cavity 501 is sealed by the first positioning plate 720 and the second positioning plate 730, and then glue is injected into the molding cavity 501 through the glue injection hole 201 to complete the rubber coating of the plug, thereby forming the inner frame of the plug. Because the first positioning plate 720 and the second positioning plate 730 cooperate to limit and correct the upper end of the plug, the problem of excessive gap between the plug and the plug positioning hole and tilting is avoided, ensuring the quality of the injection molding of the inner frame. If any positioning defect exists in the first positioning step 721, the first positioning step 721 can be repaired to ensure that each pin is accurately positioned by the first positioning plate 720 and the second positioning plate 730. This enables the injection molding of multiple pin inner frames in one operation and ensures the quality requirements of the inner frame injection molding.

[0044] Furthermore, refer to Figure 3 , Figures 5 to 8 The first positioning step 721 has a first clearance groove 722 on one side, and the second positioning plate 730 has a second clearance groove 732 that mates with the first clearance groove 722 on the side near the first positioning plate 720. When the first positioning plate 720 and the second positioning plate 730 are combined, the first clearance groove 722 and the second clearance groove 732 form a clearance cavity 701, which is used to prevent the end of the plug used for soldering wires from being exposed to air.

[0045] Each first clearance groove 722 has a first inclined surface 723 on one side, and each second clearance groove 732 has a second inclined surface 733 on one side. Specifically, the first positioning plate 720 and the second positioning plate 730 cooperate with the first inclined surface 723 and the second inclined surface 733 to achieve mutual engagement between the first positioning plate 720 and the second positioning plate 730, thereby improving the stability of positioning.

[0046] Furthermore, refer to Figure 3 , Figures 5 to 8 In one embodiment, the second positioning plate 730 is disposed on the second mold base 400. Specifically, a second slide block 740 is also slidably disposed on the inner side of the second mold base 400, and the second positioning plate 730 is connected to the second slide block 740. The extrusion pusher 110 pushes the first positioning plate 720 and the second positioning plate 730 to move towards each other, so that the first positioning plate 720 and the second positioning plate 730 cooperate with each other and seal the top of the molding cavity 501.

[0047] Furthermore, refer to Figure 3 , Figures 5 to 8 The second positioning plate 730 has multiple second positioning steps 731 on one side. When the first positioning plate 720 and the second positioning plate 730 cooperate with each other, the second positioning steps 731 and the first positioning steps 721 form a sealing groove 702 for clamping the upper end of the plug. This achieves positioning and sealing of the upper end of the plug, preventing glue leakage, and further positions the plug to prevent it from tilting, ensuring the positional accuracy of the plug. In this embodiment, two plug positioning holes 502 are provided in the molding cavity 501, which completes the inner frame molding of the two-prong plug.

[0048] Furthermore, refer to Figure 3 and Figure 5 The extrusion member 110 includes an inclined push block 111 and an inclined insertion rod 112 disposed inside the first mold base 100; the sides of the first slide block 710 and the second slide block 740 are both provided with inclined surfaces that cooperate with the corresponding inclined push block 111, and the first slide block 710 and the second slide block 740 are also provided with inclined holes that cooperate with the corresponding inclined insertion rod 112. In this embodiment, when the first molding mold 10 and the second molding mold 20 are closed, the inclined push block 111 presses the first slide block 710 and the second slide block 740, causing the first positioning plate 720 and the second positioning plate 730 to move and combine with each other. When the mold is opened, the inclined insertion rod 112 pushes the first slide block 710 and the second slide block 740 outward to move in opposite directions, causing the first positioning plate 720 and the second positioning plate 730 to open, thus realizing the demolding of the plug inner frame.

[0049] Furthermore, in one embodiment, the second positioning plate 730 is disposed on the first molding mold 10. This embodiment enables the injection molding of the inner frame of the three-prong plug. Specifically, refer to... Figures 9 to 14The second positioning plate 730 is disposed on the inner side of the first mold core 300. Preferably, the second positioning plate 730 is integrally formed on the inner side of the first mold core 300. The sidewall of the second positioning plate 730 has a plurality of protrusions 731 extending therefrom, and a positioning groove 732 is formed between two adjacent protrusions 731. A first extension 733 extends from both sides of the protrusions 731, and a cut 734 is provided on the opposite side of the two first extensions 733. The cut 734 forms a first inclined surface 735 and a stepped surface 736.

[0050] Reference Figures 11 to 14 The first positioning plate 720 includes multiple inserts 721. One end of each insert 721 extends into a plug portion 722 and two second extension portions 723. A second inclined surface 724 is provided on the opposite sides of the two second extension portions 723. When the first molding mold 10 and the second molding mold 20 are closed, the plug portion 722 extends into the positioning groove 742 and forms a first positioning clamping groove 737. The second inclined surface 724 and the cutout 734 form a second positioning clamping groove 738. In this embodiment, after the first molding mold 10 and the second molding mold 20 are closed, the first positioning clamping groove 737 and the two second positioning clamping grooves 738 position the three pins of the plug. Further, a first positioning step is formed on the inner side of the second inclined surface 724 and the plug portion 722.

[0051] Furthermore, refer to Figure 13 and Figure 14 The side of the insert 721 that is in contact with the second mold core 500 is also provided with a third clearance groove 725, which is used to clear the welding part of the insert pin. A sealing step 739 extends from the bottom side of the cut 734 and one side of the positioning groove 732, which is used to seal the top side of the third clearance groove 725.

[0052] Furthermore, referring to Figure 13 and Figure 14 The positioning groove 732 is also provided with a groove 750 and a limiting boss 751. The end of the insertion part 722 extends with a positioning protrusion 726, which is positioned and engaged with the groove 750, and the end of the insertion part 722 is limited and engaged with the limiting boss 751, thereby forming the first positioning clamping groove 737.

[0053] Furthermore, refer to Figure 12 The first positioning plate 720 consists of two sets, which are positioned opposite each other on both sides of the second mold core 500. Both sides of the second positioning plate 730 are provided with protrusions 731. Furthermore, each insert 721 is independently positioned on the first slide block 710.

[0054] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A molding die for overmolding the inner frame of a power connector, comprising a first molding die and a second molding die; the first molding die comprising a first mold base, an injection sleeve, and a first mold core, the first mold base having an mounting through hole, the injection sleeve being disposed within the mounting through hole, and the injection sleeve having an injection hole; a first mounting cavity being disposed on the inner side of the first mold base, the first mold core being disposed within the first mounting cavity, the first mold core having an adhesive flow channel communicating with the injection hole; and a plurality of branch channels extending from one side of the adhesive flow channel; characterized in that, The second molding die includes a second mold base, a second mold core, an ejection mechanism, and a positioning mechanism. The second mold base has a second mounting cavity on its inner side, and the second mold core is disposed within the second mounting cavity. The second mold core includes multiple molding cavities, each of which has at least two pin positioning holes. The ejection mechanism includes a movable plate disposed within the second mold base and a push rod extending into each of the pin positioning holes, one end of which is connected to the movable plate. The positioning mechanism includes a first slide block and a first positioning plate. The first slide block is slidably disposed within the inner side of the second mold base, and the first positioning plate is disposed on the first slide block. One side of the first positioning plate has multiple first positioning steps, which are used to limit the pins within the pin positioning holes. A second positioning plate is disposed on one side of either the second mold core or the first mold core. The first molding die and the second molding die are joined together, and the first positioning plate and the second positioning plate cover the molding cavity; the inner side of the first mold base is provided with an extrusion pusher to push the first slide block to slide.

2. The molding die for the inner frame of the power connector as described in claim 1, characterized in that: The first positioning step has a first clearance groove on one side, and the second positioning plate has a second clearance groove that cooperates with the first clearance groove on the side close to the first positioning plate; each of the first clearance grooves has a first inclined surface on one side, and each of the second clearance grooves has a second inclined surface on one side.

3. The molding die for the inner frame of the power connector as described in claim 1 or 2, characterized in that: The inner side of the second mold base is also provided with a second slide block, and the second positioning plate is connected to the second slide block; the extrusion pusher pushes the first positioning plate and the second positioning plate to move towards each other.

4. The molding die for the inner frame of the power connector as described in claim 3, characterized in that: The second positioning plate has multiple second positioning steps on one side, and the second positioning steps and the first positioning steps form a sealing groove that clamps the upper end of the plug.

5. The molding die for the inner frame of the power connector as described in claim 3, characterized in that: The molding cavity is provided with two pin positioning holes.

6. The molding die for the inner frame of the power connector as described in claim 3, characterized in that: The extrusion component includes an inclined push block and an inclined insertion rod disposed inside the first mold base; the sides of the first slide and the second slide are both provided with inclined surfaces that cooperate with the corresponding inclined push block, and the first slide and the second slide are also provided with inclined holes that cooperate with the corresponding inclined insertion rod.

7. The molding die for the inner frame of the power connector as described in claim 1 or 2, characterized in that: The second positioning plate is located inside the first mold core; the sidewall of the second positioning plate extends with a plurality of protrusions, and a positioning groove is formed between two adjacent protrusions. Both sides of the protrusions extend with first extensions, and the opposite sides of the two first extensions are provided with cuts, which form a first inclined surface and a stepped surface. The first positioning plate includes a plurality of inserts, one end of each insert having an insertion portion and two second extension portions, and the opposite sides of the two second extension portions having second inclined surfaces; the second inclined surfaces and the inner sides of the insertion portions form the first positioning step; The first molding die and the second molding die are joined together, the insertion part extends into the positioning groove and forms a first positioning clamping groove, and the second inclined surface and the cut form a second positioning clamping groove.

8. The molding die for the inner frame of the power connector according to claim 7, characterized in that: The side of the insert that fits with the second mold core is also provided with a third clearance groove, which is used to clear the welding part of the pin; a sealing step extends from the bottom side of the cut and one side of the positioning groove, which is used to seal the third clearance groove.

9. The molding die for the inner frame of the power connector as described in claim 7, characterized in that: The first positioning plate consists of two sets, which are positioned opposite each other on both sides of the second mold core; both sides of the second positioning plate are provided with the protrusion.

10. The molding die for the inner frame of the power connector according to claim 7, characterized in that: Each of the aforementioned inserts is independently disposed on the first slide.

Images