Joint shielding tube processing die

Abstract

The invention provides a connector shielding pipe machining mold. The connector shielding pipe machining mold comprises an injection molding part, a core rod and an embedded part. The injection molding part is provided with an injection molding cavity used for pouring the shielding pipe, and at least part of the injection molding part is detachably arranged; the core rod is arranged in the injection molding cavity, and the core rod is detachably connected with the injection molding component; the embedded part is arranged on the part of the core rod in a sleeving mode, a limiting part is movably arranged in the core rod in the radial direction of the core rod, and the end of the limiting part is telescopically connected with the inner wall of the embedded part in a matched mode; wherein the injection molding part is provided with a material injection port communicated with the injection molding cavity, so that an injection molding material is injected into the injection molding cavity through the material injection port, the shielding pipe with the embedded part is formed in the injection molding cavity, and the problem that in the prior art, when the shielding pipe with the embedded part is machined, the shielding pipe is difficult to fix stably is solved.

Description

Technical Field

[0001] The invention relates to the technical field of shielding tube processing, and in particular to a joint shielding tube processing mould. Background Art

[0002] At present, under the background of the rapid development of the power industry, the performance and reliability of high-voltage cable systems as a key link in power transmission are the cornerstones for ensuring the stable operation of the power grid and safe power supply. With the advancement of science and technology, a new type of plug-in prefabricated connector has emerged, which not only significantly improves the connection performance of high-voltage cable systems, but also greatly reduces the operation and maintenance costs of power facilities due to its maintenance convenience, becoming a popular innovative technology in power engineering.

[0003] However, the rubber preform of this type of joint faces technical problems that are completely different from those of traditional prefabricated joints during processing and manufacturing. Specifically, in order to achieve the locking function of the plug-in structure and the stability of the electrical connection, specific components, such as locking parts or electrical connectors, need to be embedded inside the rubber preform of the new joint. During the rubber injection process, the inner holes of these embedded parts must remain unobstructed to avoid direct contact with the rubber, otherwise the function of the embedded parts will be lost, affecting the overall performance of the joint. At the same time, in order to ensure the close combination of the rubber preform and the embedded parts, the rubber must fully cover the outer surface of the embedded parts, which is difficult to achieve in traditional mold processing, because direct contact with the mold will block the inner hole of the embedded part, affecting subsequent installation and use. Summary of the invention

[0004] The main purpose of the present invention is to provide a joint shielding tube processing mold to solve the problem in the prior art that it is difficult to firmly fix the shielding tube with embedded parts when processing it.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a joint shielding tube processing mold is provided, comprising: an injection molding component, having an injection molding cavity for pouring the shielding tube, at least part of the injection molding component is detachably arranged; a core rod, which is arranged in the injection molding cavity, and the core rod is detachably connected to the injection molding component; an embedded part, which is sleeved on a part of the core rod, and a limit part is movably provided in the core rod along its radial direction, and the end of the limit part is telescopically connected to the inner wall of the embedded part; wherein, the injection molding component is provided with an injection port connected to the injection molding cavity, so that the injection molding material can be injected into the injection molding cavity through the injection port, so that a shielding tube with the embedded part is formed in the injection molding cavity.

[0006] Furthermore, the joint shielding tube processing mold also includes: a movable part, which is arranged in a mounting hole extending in the length direction of the core rod, at least part of the movable part is movably arranged, and one end of the limiter away from the embedded part is cooperated and connected with at least part of the movable part, so that when the movable part moves along the length direction of the core rod, the limiter moves along the radial direction of the core rod.

[0007] Furthermore, at least two guide holes respectively connected to the mounting holes are provided at intervals in the core rod along its circumferential direction, and the limiting component includes: at least two limiting blocks, which are respectively arranged in the at least two guide holes and are respectively movably connected to at least part of the movable component, and a matching portion is provided at one end of the limiting block away from the movable component for matching and connecting with the embedded part.

[0008] Furthermore, the movable part includes: a wedge-shaped shaft, which is movably arranged in the mounting hole, the wedge-shaped shaft has a mounting bevel along its circumferential direction, the mounting bevel is provided with at least two mounting grooves spaced apart along its extension direction, and a mounting protrusion which cooperates with the mounting groove is provided on the end of the limit block away from the embedded part.

[0009] Furthermore, the mounting hole includes a conical hole and a circular hole connected to each other, at least two guide holes are respectively connected to the conical holes, the wedge shaft is arranged in the conical hole, and the distance between the mounting bevel and the outer wall surface of the core rod gradually increases along the direction from the conical hole to the circular hole.

[0010] Furthermore, the movable component also includes: an elastic member, which is arranged in the circular hole, one end of the elastic member is connected to one end of the wedge-shaped shaft, and the other end of the elastic member is connected to the bottom of the circular hole.

[0011] Furthermore, a connecting hole is provided in the wedge-shaped shaft along the length direction of the core rod, and a limiting hole is provided at the bottom of the circular hole. The movable part also includes: a connecting part, one end of which is detachably inserted into the connecting hole, the elastic part and the limiting hole in sequence, so that the wedge-shaped shaft moves in the direction toward the circular hole to the position where the limiting block cooperates with the embedded part for connection.

[0012] Furthermore, the core rod includes: a first core rod and a second core rod, one end of the first core rod is respectively provided with a first notch and a first mating surface, one end of the second core rod is respectively provided with a second notch and a second mating surface, the first mating surface and the second mating surface are connected to each other from top to bottom so that the first notch and the second notch form a conical hole.

[0013] Furthermore, the injection molding component includes: a first module, a second module and a third module, which are detachably connected to each other in sequence from top to bottom, the first module, the second module and the third module form an injection molding cavity, the injection port is arranged on the third module, and the first module is provided with an exhaust hole connected to the injection molding cavity; an upper template and a lower template, which are detachably connected to the first module and the third module respectively, and the upper template and the lower template are used to connect with external equipment respectively.

[0014] Furthermore, sealing rings are provided between the opposite ends of the embedded part and the core rod respectively.

[0015] By applying the technical solution of the present invention, a joint shielding tube processing mold is provided, comprising an injection molding component, a core rod, and an embedded part; the injection molding component has an injection molding cavity for pouring the shielding tube, and at least part of the injection molding component is detachably arranged; the core rod is arranged in the injection molding cavity, and the core rod is detachably connected to the injection molding component; the embedded part is sleeved on part of the core rod, and a limit piece is movably provided in the core rod along its radial direction, and the end of the limit piece is telescopically connected to the inner wall of the embedded part; wherein, the injection molding component is provided with an injection port connected to the injection molding cavity, so that the injection molding material can be injected into the injection molding cavity through the injection port, so that a shielding tube with the embedded part is formed in the injection molding cavity.

[0016] In this way, by setting a radially movable stopper on the mandrel, the precise position of the embedded part during the injection molding process is ensured, and the injection molding material of the rubber material is prevented from directly flowing into the inner hole of the embedded part, the functionality of the embedded part is protected, such as the inner hole of the electrical connector or the locking part will not be blocked by the rubber, and the locking function of the plug-in connection integral prefabricated joint and the stability of the electrical connection are ensured, thereby solving the problem that it is difficult to firmly fix the shielding tube with embedded parts in the prior art when processing it. At the same time, at least part of the injection molding part is detachably arranged, which is convenient for cleaning, maintenance and replacement of the mold, improves the use efficiency and flexibility of the mold, and is also conducive to the full filling of the injection molding material, ensuring the integrity and quality of the rubber preform. In addition, the linkage design of the movable part and the stopper allows the position of the stopper to be adjusted before injection molding to ensure that it is closely matched with the embedded part, and after injection molding, the stopper can be separated from the embedded part by the movement of the movable part, so as to facilitate the demoulding of the finished product, avoid damage to the embedded part, and significantly improve the injection molding efficiency of the preform with embedded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A cross-sectional view showing an embodiment of a joint shielding tube processing mold according to the present invention;

[0019] Figure 2 A cross-sectional view showing a mandrel and a movable part of an embodiment of a joint shielding tube processing die according to the present invention;

[0020] Figure 3 Shows Figure 2 Cross-sectional view along the AA direction.

[0021] The above drawings include the following reference numerals:

[0022] 10. Injection mold part; 11. Injection mold cavity; 12. Injection port; 13. First module; 130. Exhaust hole; 14. Second module; 15. Third module; 16. Upper template; 17. Lower template;

[0023] 20, mandrel; 21, stopper; 210, stopper; 211, mating portion; 212, mounting protrusion; 22, mounting hole; 220, tapered hole; 221, circular hole; 23, guide hole; 24, first mandrel; 240, first notch; 241, first mating surface; 25, second mandrel; 250, second notch; 251, second mating surface;

[0024] 30. Embedded parts; 31. Sealing ring;

[0025] 40. Movable component; 41. Wedge-shaped shaft; 410. Mounting groove; 411. Connecting hole; 42. Elastic member; 43. Limiting hole; 44. Connecting component. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] In order to solve the problem in the prior art that it is difficult to firmly fix a shielding tube with embedded parts when processing it, the present invention provides a joint shielding tube processing mold.

[0028] Please refer to Figures 1 to 3As shown, the present invention provides a joint shielding tube processing mold, including an injection molding component 10, a core rod 20, and an embedded part 30; the injection molding component 10 has an injection molding cavity 11 for pouring the shielding tube, and at least part of the injection molding component 10 is detachably arranged; the core rod 20 is arranged in the injection molding cavity 11, and the core rod 20 is detachably connected to the injection molding component 10; the embedded part 30 is sleeved on a part of the core rod 20, and a limit member 21 is movably provided in the core rod 20 along its radial direction, and the end of the limit member 21 is telescopically connected to the inner wall of the embedded part 30; wherein, the injection molding component 10 is provided with an injection port 12 connected to the injection molding cavity 11, so that the injection molding material can be injected into the injection molding cavity 11 through the injection port 12, so that a shielding tube with the embedded part 30 is formed in the injection molding cavity 11.

[0029] In one aspect of the technical solution of the present invention, a radially movable stopper 21 is provided on the core rod 20 to ensure the precise position of the embedded part 30 during the injection molding process, and to prevent the injection molding material of the rubber material from directly flowing into the inner hole of the embedded part 30, thereby protecting the functionality of the embedded part 30, such as the inner hole of the electrical connector or the locking part will not be blocked by the rubber, ensuring the locking function of the plug-in connection of the overall prefabricated joint and the stability of the electrical connection, thereby solving the problem of the difficulty in firmly fixing the shielding tube with the embedded part 30 in the prior art. At the same time, at least part of the injection molding part 10 is detachably arranged, which is convenient for cleaning, maintenance and replacement of the mold, improves the use efficiency and flexibility of the mold, and is also conducive to the full filling of the injection molding material, ensuring the integrity and quality of the rubber preform. Furthermore, the linkage design between the movable component 40 and the limiting component 21 allows the position of the limiting component 21 to be adjusted before injection molding to ensure that it is closely matched with the embedded component 30, and after injection molding, the limiting component 21 can be detached from the embedded component 30 through the movement of the movable component 40 to facilitate demoulding of the finished product, thereby avoiding damage to the embedded component 30 and significantly improving the injection molding efficiency of the prefabricated component with the embedded component 30.

[0030] In this embodiment, the injection molding material is rubber or the like.

[0031] In the present application, the joint shielding tube processing mold further includes a movable component 40, which is arranged in a mounting hole 22 extending along the length direction of the core rod 20, at least a portion of the movable component 40 is movably arranged, and one end of the stopper 21 away from the embedded part 30 is matched and connected with at least a portion of the movable component 40, so that when the movable component 40 moves along the length direction of the core rod 20, the stopper 21 moves along the radial direction of the core rod 20. In this way, by controlling at least a portion of the movable component 40 to move along the length direction of the core rod 20, the stopper 21 is driven to move along the radial direction of the core rod 20, so that during the injection molding process, the stopper 21 can be extended to be matched and connected with the inner wall of the embedded part 30 to fix the embedded part 30, and in the subsequent demolding process, the stopper 21 can be contracted and moved, and then separated from the embedded part 30, so as to avoid damage to the shielding tube and the embedded part 30, and at the same time, the shielding tube with the embedded part 30 formed by injection molding can be easily removed from the core rod 20.

[0032] Moreover, by setting the above-mentioned movable component 40, the entire mold structure is made more flexible. Not only can the initial position of the limiter 21 be adjusted before injection molding to ensure that the position of the embedded part 30 is fixed during the injection molding process, but also the demolding operation can be conveniently performed after injection molding, thereby reducing the complexity of the mold and improving the convenience of operation and production efficiency.

[0033] Specifically, at least two guide holes 23 are provided in the mandrel 20 along the circumferential direction thereof and are respectively connected with the mounting holes 22. The stopper 21 includes at least two stopper blocks 210. The at least two stopper blocks 210 are respectively arranged in the at least two guide holes 23 and are connected with at least part of the movable part 40. The end of the stopper block 210 away from the movable part 40 is provided with a matching portion 211 for matching with the embedded part 30. Through the above arrangement, the stopper block 210 can move smoothly in the guide hole 23 along the radial direction of the mandrel 20, so as to provide a guiding effect when the stopper block 210 moves, avoid the displacement or jamming of the stopper block 210 during the injection molding process, and ensure that the matching portion 211 of the stopper 21 can accurately match with the embedded part 30, thereby improving the precision of the injection molding process and the reliability of the finished product. In addition, the provision of at least two limit blocks 210 enables the embedded part 30 to be firmly fixed by forces from at least two directions during the injection molding process. This multi-directional fixing method can better prevent the embedded part 30 from being displaced under the pressure of the injection molding material, ensuring that the embedded part 30 always remains in the designed position during the injection molding process, thereby improving the positioning accuracy and connection stability of the embedded part 30 in the finished shielding tube.

[0034] It should be noted that, in the present application, if the inner hole of the embedded part 30 has a groove, the matching portion 211 of the stopper 210 is set to a wedge shape matching the groove, and the matching portion 211 of the stopper 210 can penetrate into the groove and match and connect with the embedded part 30 to prevent the embedded part 30 from moving; if the inner hole of the embedded part 30 has no groove, the matching portion 211 of the stopper 210 is set to an arc or rectangle consistent with the inner hole of the embedded part 30, and the friction between the stopper 210 and the embedded part 30 prevents the embedded part 30 from moving. In addition, by controlling the movement of at least part of the movable component 40, the length of the stopper 210 extending out of the mandrel 20 is controlled, thereby achieving the fixation of embedded parts 30 with different inner diameters.

[0035] like Figure 1 and Figure 2 As shown, the movable component 40 includes a wedge-shaped shaft 41, which is movably arranged in the mounting hole 22. The wedge-shaped shaft 41 has a mounting bevel along its circumferential direction, and the mounting bevel is provided with at least two mounting grooves 410 at intervals along its extension direction. A mounting protrusion 212 that cooperates with the mounting groove 410 is provided on the end of the limit block 210 away from the embedded part 30. Through the above-mentioned arrangement, at least two mounting grooves 410 on the mounting inclined surface of the wedge-shaped shaft 41 respectively correspond to the mounting protrusions 212 on at least two limit blocks 210. When the wedge-shaped shaft 41 moves in the mounting hole 22 along the length direction of the core rod 20, the inclined surface acts on the mounting protrusion 212, forcing the limit block 210 to move along the radial direction of the core rod 20. This design can very accurately control the radial movement of the limit block 210 to ensure the positioning stability of the embedded part 30 during the injection molding process, and the limit block 210 will not interfere with the embedded part 30 during the demolding process of the embedded part 30, thereby improving the production efficiency and finished product quality of the shielding tube with the embedded part 30.

[0036] Optionally, by adjusting the size and bevel angle of the wedge-shaped shaft 41 and the limit block 210 , the radial motion range of the limit block 210 can be flexibly controlled, so that the mold can adapt to embedded parts 30 of different sizes and shapes.

[0037] In this embodiment, the mounting groove 410 is a T-shaped groove or a dovetail groove, etc., and the mounting protrusion 212 is configured to match the structure of the mounting groove 410 .

[0038] Specifically, the mounting hole 22 includes a tapered hole 220 and a circular hole 221 that are connected to each other, at least two guide holes 23 are respectively connected to the tapered hole 220, the wedge-shaped shaft 41 is arranged in the tapered hole 220, and the spacing between the mounting inclined surface and the outer wall surface of the mandrel 20 gradually increases along the direction from the tapered hole 220 to the circular hole 221. Through the above arrangement, the tapered hole 220 cooperates with the wedge-shaped shaft 41, so that when the wedge-shaped shaft 41 is pushed to move in the direction toward the circular hole 221, the limit block 210 can be gradually pushed to move in the guide hole 23 in the direction toward the embedded part 30 through its inclined surface, and conversely, when the wedge-shaped shaft 41 moves in the direction away from the circular hole 221, the limit block 210 shrinks in the guide hole 23 in the direction away from the embedded part 30. In this way, the radial movement range of the limit block 210 can be precisely controlled to ensure that the embedded part 30 is fixed and stable during the injection molding process. At the same time, the limit block 210 can shrink smoothly during demoulding to avoid damage to the embedded part 30.

[0039] like Figure 2 As shown, the movable part 40 also includes an elastic member 42, which is arranged in the circular hole 221, one end of the elastic member 42 is connected to one end of the wedge-shaped shaft 41, and the other end of the elastic member 42 is connected to the bottom of the circular hole 221. Through the above arrangement, the elastic member 42 can provide the wedge-shaped shaft 41 with the ability to automatically reset. After the injection molding process is completed, the operator does not need to manually restore the wedge-shaped shaft 41 to the initial position. The restoring force of the elastic member 42 will automatically pull the wedge-shaped shaft 41 back to the set starting point, thereby causing at least two limit blocks 210 to shrink in the guide hole 23 respectively, so as to facilitate the demoulding operation, simplify the operation steps of the mold, and significantly improve the production efficiency. At the same time, the elastic member 42 can provide a certain resistance and guiding effect when the wedge-shaped shaft 41 moves, avoiding excessive impact or deviation of the limit member 21 during the movement process, and enhancing the reliability of the mold and the consistency of the finished product.

[0040] In the embodiment, the elastic member 42 is a spring.

[0041] Specifically, a connecting hole 411 is provided in the wedge-shaped shaft 41 along the length direction of the mandrel 20, and a limiting hole 43 is provided at the bottom of the circular hole 221. The movable part 40 also includes a connecting part 44, and one end of the connecting part 44 is detachably inserted into the connecting hole 411, the elastic part 42 and the limiting hole 43 in sequence, so that the wedge-shaped shaft 41 moves in the direction toward the circular hole 221 to the position where the limiting block 210 cooperates with the embedded part 30. In this way, by controlling the depth of the connecting part 44 driving the wedge-shaped shaft 41 to move toward the circular hole 221, the length of the limiting block 210 extending out of the mandrel 20 can be controlled, thereby achieving the fixation of the embedded parts 30 with different inner diameters; and in the demoulding process, the connecting part 44 is first taken out, and then the wedge-shaped shaft 41 can be restored to the initial position under the action of the elastic part 42, so that the limiting block 210 can be contracted. Therefore, the operator only needs to control the connecting part 44 to achieve the control of the entire movable part 40, which simplifies the operation process and improves the convenience and efficiency of the operation.

[0042] In this embodiment, the connecting component 44 is a connecting bolt, a threaded section is provided in the limiting hole 43 , and the connecting component 44 is threadedly connected to the limiting hole 43 .

[0043] In the present application, the core rod 20 includes a first core rod 24 and a second core rod 25. One end of the first core rod 24 is provided with a first notch 240 and a first mating surface 241, respectively. One end of the second core rod 25 is provided with a second notch 250 and a second mating surface 251, respectively. The first mating surface 241 and the second mating surface 251 are connected to each other from top to bottom so that the first notch 240 and the second notch 250 surround a tapered hole 220. Through the above arrangement, when the mold is processing shielding tubes of different sizes, the first core rod 24 and the second core rod 25 can be easily replaced or adjusted, thereby changing the size of the tapered hole 220, thereby improving the versatility and flexibility of the mold, and being able to adapt to the processing requirements of embedded parts 30 and shielding tubes of different specifications. In addition, it is convenient to assemble and disassemble the core rod 20, and at the same time, it is convenient to remove the connecting component 44 exposed in the second notch 250 after removing the first core rod 24, and then restore the wedge shaft 41 to its initial position.

[0044] In this embodiment, when the elastic member 42 is away from the limiting hole 43 in the connecting member 44, the wedge-shaped shaft 41 is pushed away from the second notch 250, and the mounting protrusion 212 is driven to slide in the mounting groove 410, thereby driving the limiting block 210 to move in the axial direction and disengage from the embedded member 30. When the elastic member 42 is close to the limiting hole 43 in the connecting member 44, the wedge-shaped shaft 41 is moved close to the second notch 250, and the mounting protrusion 212 is driven to slide in the mounting groove 410, thereby driving the limiting block 210 to move away from the axial direction, and fixing the embedded member 30.

[0045] Optionally, the first mating surface 241 and the second mating surface 251 are conical surfaces, and are connected to each other from top to bottom by the first mating surface 241 and the second mating surface 251, which not only simplifies the assembly process of the mold, but also makes it easier to disassemble the mold, which is beneficial to the rapid replacement and maintenance of the mold and improves production efficiency.

[0046] In the present application, the injection molding component 10 includes a first module 13, a second module 14, a third module 15, an upper template 16 and a lower template 17. The first module 13, the second module 14 and the third module 15 are detachably connected to each other in sequence from top to bottom. The first module 13, the second module 14 and the third module 15 form an injection molding cavity 11. The injection port 12 is arranged on the third module 15. The first module 13 is provided with an exhaust hole 130 connected to the injection molding cavity 11; the upper template 16 and the lower template 17 are detachably connected to the first module 13 and the third module 15 respectively, and the upper template 16 and the lower template 17 are respectively used to connect with external equipment.

[0047] Through the above arrangement, the first module 13, the second module 14 and the third module 15 are detachably connected by bolts, and the upper template 16 and the lower template 17 are detachably connected to the first module 13 and the third module 15 by bolts, respectively. The mold can be quickly adjusted according to the shielding tubes and embedded parts 30 of different specifications. By replacing or combining different modules, the shape and size of the injection molding cavity 11 can be changed to meet different needs, thereby improving the versatility and production flexibility of the mold. At the same time, the exhaust hole 130 is used for exhaust during the processing and manufacturing of the joint shielding tube. If necessary, it can be connected to a vacuum pump to assist in exhausting the injection molding cavity 11. The air in the injection molding cavity 11 can be discharged in time during the injection molding process to prevent the generation of bubbles, ensure the compactness of the internal structure of the shielding tube and the stability of the electrical performance, and improve the reliability and electrical performance of the finished product.

[0048] Specifically, sealing rings 31 are respectively arranged between the two opposite ends of the embedded part 30 and the core rod 20. Through the above arrangement, the sealing effect of the sealing ring 31 prevents the rubber material from entering the internal cavity of the core rod 20 during the rubber injection manufacturing process of the shielding tube, resulting in the shielding tube being unable to be removed from the core rod 20, thereby effectively preventing the rubber material from leaking from the gap between the embedded part 30 and the core rod 20 during the injection molding process, ensuring that the rubber material only forms a complete shielding tube on the outer wall of the embedded part 30, and does not enter the interior of the embedded part 30, thereby maintaining the original function and structural integrity of the embedded part 30.

[0049] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0050] A joint shielding tube processing mold includes an injection molding part 10, a core rod 20, and an embedded part 30; the injection molding part 10 has an injection molding cavity 11 for pouring the shielding tube, and at least part of the injection molding part 10 is detachably arranged; the core rod 20 is arranged in the injection molding cavity 11, and the core rod 20 is detachably connected to the injection molding part 10; the embedded part 30 is sleeved on a part of the core rod 20, and a limit member 21 is movably provided in the core rod 20 along its radial direction, and the end of the limit member 21 is telescopically connected to the inner wall of the embedded part 30; wherein, the injection molding part 10 is provided with an injection port 12 connected to the injection molding cavity 11, so that the injection molding material can be injected into the injection molding cavity 11 through the injection port 12, so that a shielding tube with the embedded part 30 is formed in the injection molding cavity 11. In this way, by setting a radially movable limiter 21 on the core rod 20, the precise position of the embedded part 30 during the injection molding process is ensured, and the injection molding material of the rubber material is prevented from directly flowing into the inner hole of the embedded part 30, thereby protecting the functionality of the embedded part 30, such as the inner hole of the electrical connector or the locking part will not be blocked by rubber, ensuring the locking function of the plug-in connection of the overall prefabricated joint and the stability of the electrical connection, thereby solving the problem of the difficulty in firmly fixing the shielding tube with the embedded part 30 in the prior art. At the same time, at least part of the injection molding part 10 is detachably arranged, which is convenient for cleaning, maintenance and replacement of the mold, improves the use efficiency and flexibility of the mold, and is also conducive to the full filling of the injection molding material, ensuring the integrity and quality of the rubber preform. Furthermore, the linkage design between the movable component 40 and the limiting component 21 allows the position of the limiting component 21 to be adjusted before injection molding to ensure that it is closely matched with the embedded component 30, and after injection molding, the limiting component 21 can be detached from the embedded component 30 through the movement of the movable component 40 to facilitate demoulding of the finished product, thereby avoiding damage to the embedded component 30 and significantly improving the injection molding efficiency of the prefabricated component with the embedded component 30.

[0051] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0052] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0054] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0055] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A joint shielding tube processing mold, characterized in that: include: An injection mold component (10) having an injection mold cavity (11) for pouring the shielding pipe, wherein at least part of the injection mold component (10) is detachably arranged; A core rod (20) is disposed in the injection mold cavity (11), and the core rod (20) is detachably connected to the injection mold component (10); An embedded part (30) is sleeved on a portion of the mandrel (20), a limiting part (21) is movably provided in the mandrel (20) along its radial direction, and an end of the limiting part (21) is telescopically connected to the inner wall of the embedded part (30); The injection molding component (10) is provided with an injection port (12) connected to the injection molding cavity (11), so that the injection molding material can be injected into the injection molding cavity (11) through the injection port (12), so that a shielding tube with the embedded part (30) is formed in the injection molding cavity (11).

2. The joint shielding tube processing mold according to claim 1 is characterized in that: The joint shielding tube processing mold also includes: A movable component (40) is arranged in a mounting hole (22) extending in the length direction of the core rod (20), at least a portion of the movable component (40) is movably arranged, and an end of the limiting component (21) away from the embedded component (30) is cooperatively connected with at least a portion of the movable component (40), so that when the movable component (40) moves along the length direction of the core rod (20), the limiting component (21) moves along the radial direction of the core rod (20).

3. The joint shielding tube processing mold according to claim 2 is characterized in that: At least two guide holes (23) are provided in the mandrel (20) along its circumferential direction at intervals and are respectively connected to the mounting holes (22), and the limiting member (21) comprises: At least two limit blocks (210) are respectively arranged in the at least two guide holes (23) and are respectively movably connected to at least part of the movable component (40); a matching portion (211) is provided at one end of the limit block (210) away from the movable component (40) for matching and connecting with the embedded component (30).

4. The joint shielding tube processing mold according to claim 3 is characterized in that: The movable part (40) comprises: A wedge-shaped shaft (41) is movably disposed in the mounting hole (22); the wedge-shaped shaft (41) has a mounting inclined surface along its circumferential direction; the mounting inclined surface is provided with at least two mounting grooves (410) at intervals along its extension direction; and a mounting protrusion (212) is provided on one end of the limit block (210) away from the embedded part (30) and is mutually matched and connected with the mounting groove (410).

5. The joint shielding tube processing mold according to claim 4, characterized in that: The mounting hole (22) comprises a conical hole (220) and a circular hole (221) which are connected to each other, at least two of the guide holes (23) are respectively connected to the conical hole (220), the wedge-shaped shaft (41) is arranged in the conical hole (220), and the distance between the mounting inclined surface and the outer wall surface of the core rod (20) gradually increases along the direction from the conical hole (220) to the circular hole (221).

6. The joint shielding tube processing mold according to claim 5, characterized in that: The movable component (40) further comprises: An elastic member (42) is arranged in the circular hole (221), one end of the elastic member (42) is connected to one end of the wedge-shaped shaft (41), and the other end of the elastic member (42) is connected to the bottom of the circular hole (221).

7. The joint shielding tube processing mold according to claim 6, characterized in that: A connecting hole (411) is provided in the wedge-shaped shaft (41) along the length direction of the mandrel (20), a limiting hole (43) is provided at the bottom of the circular hole (221), and the movable component (40) further comprises: A connecting component (44), one end of which is detachably inserted into the connecting hole (411), the elastic component (42) and the limiting hole (43) in sequence, so that the wedge-shaped shaft (41) moves in a direction toward the circular hole (221) to a position where the limiting block (210) is matched and connected with the embedded component (30).

8. The joint shielding tube processing mold according to claim 5, characterized in that: The mandrel (20) comprises: A first core rod (24) and a second core rod (25), wherein one end of the first core rod (24) is respectively provided with a first notch (240) and a first mating surface (241), and one end of the second core rod (25) is respectively provided with a second notch (250) and a second mating surface (251), wherein the first mating surface (241) and the second mating surface (251) are connected to each other from top to bottom so that the first notch (240) and the second notch (250) surround the conical hole (220).

9. The joint shielding tube processing mold according to claim 1, characterized in that: The injection molded part (10) comprises: The first module (13), the second module (14) and the third module (15) are detachably connected to each other in sequence from top to bottom, the first module (13), the second module (14) and the third module (15) enclose the injection mold cavity (11), the injection port (12) is arranged on the third module (15), and the first module (13) is provided with an exhaust hole (130) communicating with the injection mold cavity (11); The upper template (16) and the lower template (17) are detachably connected to the first module (13) and the third module (15) respectively, and the upper template (16) and the lower template (17) are respectively used to connect to external equipment.

10. The joint shielding tube processing mold according to claim 1, characterized in that: Sealing rings (31) are provided between the opposite ends of the embedded part (30) and the core rod (20).

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