A terminal mold

Abstract

An embodiment of the present application discloses a pole column mold for forming an insulating layer of a pole column. The pole column includes a pole column body and an insulating layer wrapped around the outer surface of the pole column body. One end of the pole column in the axial direction is provided with an inlet end, and the pole column is provided with an outlet end protruding in the radial direction. The pole column mold is provided with a pole column cavity and a glue injection port. During the formation of the insulating layer, the pole column body is arranged in the pole column cavity, and an insulating layer cavity is formed between the outer surface of the pole column body and the cavity wall of the pole column cavity. The height direction of the pole column mold is perpendicular to the axial direction of the pole column, the outlet end is arranged downward of the pole column mold, and the glue injection port is formed at the lower part of the insulating layer cavity. By forming the glue injection port at the lower part of the insulating layer cavity, setting the axial direction of the pole column perpendicular to the height direction of the pole column mold, and arranging the outlet end downward of the pole column mold, it is beneficial to reduce the height required for the melt to flow, can improve the formation of bubbles in the insulating layer cavity, and further can improve the problem of air holes formed on the appearance surface of the pole column.

Description

Technical Field

[0001] The present application relates to the technical field of power equipment, and in particular to a pole column mold. Background Art

[0002] The pole-mounted circuit breaker is an important device for protecting the safe operation of the power system. It is usually installed on the pole of the transmission line and can quickly cut off the circuit when the transmission state is abnormal to prevent dangers such as overload and short circuit and protect the power system. Specifically, the pole-mounted circuit breaker includes a pole column, a mechanism box, and a terminal FTU (Feeder Terminal Unit). A vacuum interrupter is usually arranged in the pole column. The upper end of the vacuum interrupter is connected to the incoming line end, the lower end of the vacuum interrupter is connected to the outgoing line end, and the incoming line end, the vacuum interrupter, and the outgoing line end form a path. The detection signal of the pole column will be transmitted to the terminal FTU, and the terminal FTU judges whether the transmission state is abnormal according to the detection signal of the pole column. If it is abnormal, an action signal is sent to the mechanism box to control the mechanism box to pull the insulating rod in the pole column, thereby realizing the rapid cutting off of the circuit.

[0003] In the related art, during the injection molding process of the pole column, air holes may exist on the appearance surface of the pole column, affecting the product quality and aesthetics. Summary of the Invention

[0004] In view of this, the embodiments of the present application are expected to provide a pole column mold to improve the problem of air holes formed on the appearance surface of the pole column and enhance the product quality and aesthetics.

[0005] To solve the above problems, the technical solution of the embodiments of the present application is implemented as follows:

[0006] The embodiments of the present application provide a pole column mold for forming an insulating layer of a pole column. The pole column includes a pole column body and the insulating layer wrapped around the outer surface of the pole column body. One end of the pole column in the axial direction is provided with an incoming line end, and the pole column protrudes radially to be provided with an outgoing line end;

[0007] The pole column mold is provided with a pole column cavity and a glue injection port. During the formation of the insulating layer, the pole column body is arranged in the pole column cavity, and an insulating layer cavity is formed between the outer surface of the pole column body and the cavity wall of the pole column cavity. Among them, the height direction of the pole column mold is perpendicular to the axial direction of the pole column, the outgoing line end is arranged downward towards the pole column mold, and the glue injection port is formed at the lower part of the insulating layer cavity.

[0008] In some embodiments, the glue injection port is formed below the pole column body.

[0009] In some embodiments, the outgoing line end is arranged vertically downward.

[0010] In some embodiments, the insulating layer cavity includes a first connecting segment and a second connecting segment arranged in sequence along the axial direction, the outlet end is located in the first connecting segment, the inlet end is located in the second connecting segment, and the first connecting segment and the second connecting segment are both provided with the glue injection port.

[0011] In some embodiments, the dimension of the first connecting segment in the height direction of the pole mold is greater than the dimension of the second connecting segment in the height direction of the pole mold; the number of the injection ports on the first connecting segment is greater than the number of the injection ports on the second connecting segment.

[0012] In some embodiments, the first connecting section includes a first part and a second part arranged in sequence along the axial direction, the outlet end is arranged at the second part, and the first part is arranged at an end of the second part away from the second connecting section; wherein the first part and the second part are both provided with the glue injection port.

[0013] In some embodiments, a plurality of umbrella skirts are protruding from the outer surface of the insulating layer; the cavity wall of the insulating layer cavity is recessed to form a plurality of umbrella skirt cavities, the umbrella skirt cavities are used to form the umbrella skirts, and at least part of the cavity wall of the umbrella skirt cavity is provided with the glue injection port.

[0014] In some embodiments, the pole mold includes a mounting channel, the interior of the mounting channel has an injection pipe, and the injection pipe is connected to the glue injection port.

[0015] In some embodiments, the pole mold includes a fixed mold, a movable mold and a die head, the fixed mold and the movable mold are connected along a first direction to form the pole cavity and the injection port, and the pole body is connected to the pole mold through the die head; the first direction is perpendicular to the height direction of the pole mold and the axial direction of the pole.

[0016] In some embodiments, the movable mold includes a plurality of sub-movable molds, and at least some of the sub-movable molds are spliced ​​along the axial direction of the pole to form the movable mold.

[0017] In some embodiments, the fixed mold includes a plurality of sub-fixed molds, and at least some of the sub-fixed molds are spliced ​​along the axial direction of the pole to form the fixed mold.

[0018] In some embodiments, the outer surface of the insulating layer is protrudingly provided with a plurality of sheds; the cavity wall of the insulating layer cavity is recessed to form a plurality of shed cavities, and the shed cavities are used to form the sheds;

[0019] In some embodiments, at least part of the splicing positions of the sub-movable molds are located at the umbrella skirt cavity.

[0020] In some embodiments, at least a part of the splicing position of the sub-fixed mold is located at the umbrella skirt cavity.

[0021] The pole column mold of the embodiment of the present application is used for molding a pole column. By providing a pole column cavity and a glue injection port in the pole column mold, the pole column body is arranged in the pole column cavity, so that an insulating layer cavity is formed between the outer surface of the pole column body and the cavity wall of the pole column cavity. The melt is injected into the insulating layer cavity through the glue injection port, so that an insulating layer can be formed on the outer surface of the pole column body. The dimension of the pole column in the axial direction is larger than the dimension of the pole column in the radial direction, and the glue injection port is formed at the lower part of the insulating layer cavity. Therefore, by setting the axial direction of the pole column perpendicular to the height direction of the pole column mold, it is beneficial to reduce the height that the melt needs to flow, ensure that the melt still has high fluidity when it spreads to the top of the insulating layer cavity, so as to improve the situation of forming bubbles in the insulating layer cavity, and further improve the problem of forming air holes on the appearance surface of the pole column; in addition, by setting the outgoing line end downward of the pole column mold, that is to say, setting the area with relatively complex pole column structure downward, that is, close to the glue injection port, and setting the area with relatively simple pole column structure away from the glue injection port, in this way, it is beneficial to improve the situation of forming bubbles in the area of the insulating layer cavity far from the glue injection port, and further improve the problem of forming air holes on the appearance surface of the pole column, and improve the product quality and aesthetics. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of a pole column mold according to some embodiments of the present application;

[0023] Figure 2 is Figure 1 a cross-sectional view of;

[0024] Figure 3 It is a schematic partial structural diagram of a pole column mold according to some embodiments of the present application;

[0025] Figure 4 It is a schematic connection structure diagram of a pole column and an injection molding pipeline according to some embodiments of the present application;

[0026] Figure 5 It is a schematic structural diagram of a pole column according to some embodiments of the present application.

[0027] Description of the Reference Numerals

[0028] 10. Terminal post; 11. Terminal post body; 12. Insulation layer; 121. Umbrella skirt; 13. Inlet end; 14. Outlet end; 20. Terminal post mold; 21. Fixed mold; 211. First sub-fixed mold; 212. Second sub-fixed mold; 213. Third sub-fixed mold; 214. Fourth sub-fixed mold; 215. Fifth sub-fixed mold; 216. Sixth sub-fixed mold; 217. Seventh sub-fixed mold; 218. Eighth sub-fixed mold; 219. Ninth sub-fixed mold; 220. Tenth sub-fixed mold; 221. Eleventh sub-fixed mold; 222. Twelfth sub-fixed mold; 22. Movable mold; 23. Insulation layer cavity; 231. First connection section; 232. Second connection section; 233. First part; 234. Second part; 235. Umbrella skirt cavity; 236. Outlet end cavity; 24. Glue injection port; 25. Injection pipeline; 26. Die head; 27. Installation channel. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present application. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and thus are only examples and cannot be used to limit the protection scope of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

[0030] In the description of the embodiments of the present application, technical terms such as "first", "second", "third", etc. are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality" is more than two, unless otherwise clearly and specifically defined.

[0031] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0032] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0033] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0035] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] The present application embodiment provides a pole mold 20, see Figures 1 to 5 , used to form the insulating layer 12 of the pole 10.

[0037] The pole 10 includes a pole body 11 and an insulating layer 12 wrapped around the outer surface of the pole body 11 . An inlet terminal 13 is provided at one axial end of the pole 10 , and an outlet terminal 14 is provided protruding radially from the pole 10 .

[0038] The pole mold 20 is provided with a pole cavity and a glue injection port 24. During the molding of the insulating layer 12, the pole body 11 is arranged in the pole cavity, and an insulating layer cavity 23 is formed between the outer surface of the pole body 11 and the cavity wall of the pole cavity, wherein the height direction of the pole mold 20 is perpendicular to the axial direction of the pole 10, the outlet terminal 14 is arranged toward the bottom of the pole mold 20, and the glue injection port 24 is formed at the lower part of the insulating layer cavity 23.

[0039] Here, during injection molding, the melt is injected into the insulating layer cavity 23 through the injection port 24, the melt enters the insulating layer cavity 23, and fills the insulating layer cavity 23. After molding and cooling, the mold is opened to obtain the insulating layer 12 wrapped around the outer surface of the pole body 11.

[0040] Exemplarily, the pole body 11 includes a sealing body, a conductive rod, a current sensor and a capacitor assembly.

[0041] The conductive rod is sealed in the sealing body, and the conductive rod forms an outlet terminal 14, and the conductive rod is used to connect with the circuit outside the pole 10. The specific structure can refer to the relevant technology in the field, and will not be repeated here.

[0042] The coil of the current sensor is also encapsulated within the encapsulation body, which is used to measure the current of the conductive rod. As an example, the conductive rod can pass through the coil, enabling the current sensor to measure the current of the conductive rod.

[0043] "Encapsulated within the encapsulation body" here means embedding the above components into the encapsulation body through a special embedding technique, making them an inseparable whole with the encapsulation body. As an example, during actual production and preparation, the above components can be pre-assembled, and then encapsulating materials such as epoxy resin are poured into them. After the encapsulating materials solidify, an encapsulation body is formed, thus realizing encapsulating the above components within the encapsulation body. Or, encapsulating materials can be poured into a mold corresponding to the above components to form an encapsulation body, then the mold is removed, and the above components are installed into the encapsulation body and secondary pouring is carried out, thus encapsulating the above components within the encapsulation body.

[0044] The capacitor assembly is connected to the conductive rod, and this capacitor assembly can be used as a voltage sensor and / or an energy-taking device. When the capacitor assembly is used as a voltage sensor, it can measure the voltage of the voltage rod, and the measured voltage can provide a basis for the opening of the pole-mounted circuit breaker. When the capacitor assembly is used as an energy-taking device, it can obtain electrical energy from the conductive rod, and the obtained electrical energy can be used by other electrical components of the pole-mounted circuit breaker.

[0045] In some embodiments, the pole-mounted circuit breaker includes a mechanism box and the pole column 10 described in any embodiment of the present application, and the current sensor and / or the capacitor assembly are electrically connected to the mechanism box.

[0046] The electrical signals of the current sensor and / or the voltage sensor are transmitted to the terminal FTU. The terminal FTU determines whether to send an opening signal to the mechanism box according to the electrical signals. After receiving the opening signal from the terminal FTU, the mechanism box performs an opening operation. The specific structure of the mechanism box can refer to the relevant technologies in the art and will not be elaborated here.

[0047] Here, the insulating layer 12 wraps around the outer surface of the pole column body 11, and the encapsulation body is arranged within the insulating layer 12. In this way, the encapsulation body can be protected, further enhancing the service life of the pole column 10.

[0048] The specific structure of the insulating layer 12 is not limited. As an example, the insulating layer 12 can be formed by secondary injection molding of insulating materials such as rubber, silica gel, and injection molding materials on the outer surface of the encapsulation body.

[0049] Here, the encapsulation body is encapsulated within the insulating layer 12. In this way, the stability of the overall structure of the pole column 10 and its insulation performance can be improved.

[0050] Here, the incoming line end 13 and the outgoing line end 14 of the pole column 10 are used to communicate with the external circuit.

[0051] It should be noted that the lower part of the insulating layer cavity 23 refers to the part that does not exceed half of the height of the insulating layer cavity 23.

[0052] Exemplarily, please refer to Figures 2 to 3 , and the glue injection port 24 is located below the pole column body 11.

[0053] Here, the height direction of the pole column mold 20 is perpendicular to the axial direction of the pole column 10, that is, the height direction of the pole column mold 20 is perpendicular to the height direction of the pole column 10. That is to say, the pole column 10 is placed horizontally in the pole column mold 20. In this way, it is beneficial to reduce the distance that the melt needs to flow in the height direction.

[0054] The pole column 10 is provided with an outgoing line end 14 protruding in the radial direction. Thus, the structure of the pole column 10 at the outgoing line end 14 is relatively complex compared to the structure of other regions of the pole column 10 in the radial direction except the outgoing line end 14. By arranging the outgoing line end 14 downward towards the pole column mold 20, in this way, it is beneficial to improve the situation of forming air bubbles in the region of the insulating layer cavity 23 far from the glue injection port 24.

[0055] In the related art, the dimension of the pole column in the axial direction (height direction) is larger than the dimension of the pole column in the radial direction (lateral direction). If the melt is injected starting from below the pole column in the direction of the pole column placed upright (that is, the height direction of the pole column is parallel to the height direction of the pole column mold), it will cause too high injection height. When the melt gradually spreads from the bottom of the insulating layer cavity to the top, the fluidity of the melt will be greatly lost, resulting in air bubbles being easily left at the top of the cavity during injection, which may cause pores inside or on the surface of the product and affect the product quality.

[0056] The pole mold 20 of the embodiment of the present application is used to form the pole 10. By providing the pole mold 20 with a pole cavity and a glue injection port 24, the pole body 11 is arranged in the pole cavity, so that an insulating layer cavity 23 is formed between the outer surface of the pole body 11 and the cavity wall of the pole cavity. The melt is injected into the insulating layer cavity 23 through the glue injection port 24, so that an insulating layer 12 can be formed on the outer surface of the pole body 11. The size of the pole 10 in the axial direction is greater than the size of the pole 10 in the radial direction, and the glue injection port 24 is formed at the lower part of the insulating layer cavity 23. Therefore, by setting the axial direction of the pole 10 perpendicular to the height direction of the pole mold 20, it is beneficial to reduce the height that the melt needs to flow, ensure that the melt still has high fluidity when it spreads to the top of the insulating layer cavity, so as to improve the situation of forming bubbles in the insulating layer cavity 23, and further improve the problem of forming air holes on the appearance surface of the pole 10; in addition, by setting the outgoing line end 14 downward towards the pole mold 20, that is to say, setting the area with relatively complex structure of the pole 10 downward, that is, close to the glue injection port 24, and setting the area with relatively simple structure of the pole 10 away from the glue injection port 24. In this way, it is beneficial to improve the situation of forming bubbles in the area of the insulating layer cavity 23 far from the glue injection port 24, and further improve the problem of forming air holes on the appearance surface of the pole 10, and improve the product quality and aesthetics.

[0057] In some examples, please refer to Figure 2 , the outgoing line end 14 is arranged vertically downward.

[0058] Here, the height direction of the pole mold 20 is parallel to the vertical direction.

[0059] In this embodiment, by arranging the outgoing line end 14 vertically downward, the pole 10 is approximately symmetric about the vertical plane. In this way, the melt in the insulating layer cavity 23 can spread synchronously from both sides of the vertical plane, which is beneficial to make the confluence point of the melt approximately form at the top of the pole body 11, beneficial to reduce the generation of bubbles, and also beneficial to improve the product quality and aesthetics.

[0060] In some examples, please refer to Figure 2 , the insulating layer cavity 23 includes a first connection section 231 and a second connection section 232 arranged in sequence along the axial direction. The outgoing line end 14 is located in the first connection section 231, and the incoming line end 13 is located in the second connection section 232. Both the first connection section 231 and the second connection section 232 are provided with glue injection ports 24.

[0061] Here, it is possible to roughly form the confluence point of the melt at the top of the terminal body 11, which is beneficial to reducing the generation of bubbles, improving the product quality and aesthetics. If the melt flow in each region of the insulating layer cavity 23 is not synchronized axially, for example, the melt flows faster along the first side of the axial direction of the terminal 10 and slower along the second side of the axial direction of the terminal 10, then before the first side is filled up, it may continue to flow to the second side, resulting in a relatively complex confluence point of the melt. In the case of a relatively complex confluence point of the melt, bubbles are likely to be generated.

[0062] In this embodiment, the insulating layer cavity 23 is axially divided into a first connection section 231 and a second connection section 232, and glue injection ports 24 are provided in both the first connection section 231 and the second connection section 232. That is to say, glue injection ports 24 are distributed in both the first connection section 231 corresponding to the outgoing line end 14 and the second connection section 232 corresponding to the incoming line end 13 of the insulating layer cavity 23. In this way, it is beneficial to make the melt on both sides of the first connection section 231 and the second connection section 232 spread up basically synchronously, thereby facilitating the confluence point of the melt to be roughly formed at the top of the terminal body 11.

[0063] In some examples, please refer to Figures 2 to 4 , the dimension of the first connection section 231 in the height direction of the terminal mold 20 is larger than the dimension of the second connection section 232 in the height direction of the terminal mold 20; the number of glue injection ports 24 on the first connection section 231 is more than the number of glue injection ports 24 on the second connection section 232.

[0064] It can be understood that since the dimension of the first connection section 231 in the height direction of the terminal mold 20 is larger than the dimension of the second connection section 232 in the height direction of the terminal mold 20, the volume of the melt required to fill the first connection section 231 is relatively large, while the volume of the melt required to fill the second connection section 232 is relatively small. Therefore, by setting the number of glue injection ports 24 on the first connection section 231 to be more than the number of glue injection ports 24 on the second connection section 232, it is beneficial to control the confluence point of the melt to be roughly formed at the top of the terminal body 11.

[0065] As an example, the first connection section 231 is provided with three glue injection ports 24, and the second connection section 232 is provided with two glue injection ports 24.

[0066] In some examples, please refer to Figures 2 to 4, the first connecting section 231 includes a first part 233 and a second part 234 arranged axially in sequence. The outgoing line end 14 is arranged on the second part 234, and the first part 233 is arranged at one end of the second part 234 away from the second connecting section 232; wherein, glue injection ports 24 are arranged on both the first part 233 and the second part 234. Among them, the glue injection port 24 at the second part 234 is located on the side of the second part close to the first part and at the umbrella skirt of the outgoing line end.

[0067] Here, the second part 234 is provided with the outgoing line end 14, that is to say, the dimension of the second part 234 in the height direction of the pole column mold 20 is greater than the dimension of the first part 233 in the height direction of the pole column mold 20.

[0068] In this embodiment, by arranging the glue injection port 24 on the second part 234 where the outgoing line end 14 is arranged, since the structure of the second part 234 is relatively complex, by arranging the corresponding glue injection port 24, it is beneficial for the melt to fill the second part 234, and it is beneficial to reduce the generation of bubbles in the second part 234, and it is also beneficial to improve the quality and aesthetics of the second part 234; in addition, by arranging the glue injection port 24 on the first part 233, it is beneficial to further reduce the total height of the melt injected into the first part 233, thereby improving the melt injection quality, and further beneficial to reducing the generation of bubbles in the first part 233, and it is also beneficial to improve the quality and aesthetics of the first part 233.

[0069] As an example, the first part 233 is provided with two glue injection ports 24, and the second part 234 is provided with one glue injection port 24.

[0070] In some examples, please refer to Figures 2 to 5 , a plurality of umbrella skirts 121 are convexly arranged on the outer surface of the insulating layer 12. The cavity wall of the insulating layer cavity 23 is recessed to form a plurality of umbrella skirt cavities 235 for molding the umbrella skirts 121, and at least part of the cavity wall of the umbrella skirt cavities 235 is provided with glue injection ports 24.

[0071] In the embodiments of the present application, the plurality mentioned refers to a quantity of two or more.

[0072] Here, by convexly arranging a plurality of umbrella skirts 121 on the outer surface of the insulating layer 12, and the umbrella skirts 121 are used to increase the creepage distance of the pole column 10, the safety of the operator can be improved.

[0073] As an example, the plurality of umbrella skirts 121 are arranged at intervals along the axial direction of the pole column 10.

[0074] Here, at least part of the cavity wall of the umbrella skirt cavities 235 being provided with glue injection ports 24 means that it can be that part of the cavity wall of the umbrella skirt cavities 235 is provided with glue injection ports 24, or it can be that the cavity walls of all the umbrella skirt cavities 235 are provided with glue injection ports 24.

[0075] In this embodiment, by providing a glue injection port 24 on at least a part of the cavity wall of the umbrella skirt cavity 235, on the one hand, it is beneficial for the melt to fill the umbrella skirt cavity 235 and reduce the generation of air bubbles in the umbrella skirt cavity 235. On the other hand, it can make the formed glue injection port 24 forming part on the pole column 10 after demolding located on the umbrella skirt 121, which is convenient for grinding and is beneficial to improving the quality and aesthetics of the pole column 10.

[0076] In some examples, please refer to Figures 1 to 5 , the pole column mold 20 includes a fixed mold 21 and a movable mold 22. The fixed mold 21 and the movable mold 22 are butted along a first direction to form a pole column cavity and a glue injection port 24. The first direction is perpendicular to both the height direction of the pole column mold 20 and the axial direction of the pole column 10.

[0077] In the related art, an injection channel can be defined between the fixed mold and the movable mold, and the injection channel communicates with the glue injection port. Then, there may be some gaps between the fixed mold and the movable mold, which may affect the sealing performance of the injection channel, and may further increase the pressure required for injection molding.

[0078] However, the pole column mold 20 provided in the embodiment of the present application includes an installation channel. Please refer to Figure 4 , the inside of the installation channel 27 has an injection pipeline 25, and the injection pipeline 25 communicates with the glue injection port 24.

[0079] By forming the installation channel 27 on the contact surface between the fixed mold 21 and the movable mold 22, and arranging the injection pipeline 25 in the installation channel 27, in this way, it is beneficial to improve the sealing performance of injection molding, and further ensure that the melt still has high fluidity when spreading to the top of the insulation layer cavity, and is beneficial to improving the quality and aesthetics of the pole column 10.

[0080] In some examples, please refer to Figures 1 to 2 , the pole column mold 20 includes a mold head 26, and the pole column body 11 is connected to the pole column mold 20 through the mold head 26.

[0081] Here, the pole column 10 is connected to the pole column mold 20 through the mold head 26, that is to say, by providing the mold head 26, it is used to realize the installation of the pole column body 11, so that the outer surface of the pole column body 11 and the cavity wall of the pole column cavity form an insulation layer cavity 23.

[0082] In some examples, please refer to Figures 1 to 3 , the movable mold 22 includes a plurality of sub-movable molds, and at least a part of the sub-movable molds are spliced along the axial direction of the pole column 10 to form the movable mold 22.

[0083] That is to say, the movable mold 22 is composed of a plurality of sub-movable molds. When processing the mold, the individual sub-movable molds can be processed separately, and then the plurality of sub-movable molds can be combined into the movable mold 22.

[0084] It can be understood that if the entire moving die 22 is directly processed, not only is the processing difficulty high, but also if an error occurs during the processing, the entire moving die 22 can only be scrapped. However, if the sub-moving die is processed first and then the sub-moving dies are spliced into the moving die 22, it is not only beneficial to reduce the processing difficulty, but also even if an error occurs during the processing of a certain sub-moving die, only this one sub-moving die needs to be scrapped, thus facilitating cost reduction.

[0085] In some instances, refer to Figures 1 to 3 , the fixed die 21 includes a plurality of sub-fixed dies, and at least part of the sub-fixed dies are spliced along the axial direction of the pole column 10 to form the fixed die 21.

[0086] That is to say, the fixed die 21 is composed of a plurality of sub-fixed dies. When processing the mold, the individual sub-fixed dies can be processed separately and then the plurality of sub-fixed dies can be combined into the fixed die 21.

[0087] It can be understood that if the entire fixed die 21 is directly processed, not only is the processing difficulty high, but also if an error occurs during the processing, the entire fixed die 21 can only be scrapped. However, if the sub-fixed die is processed first and then the sub-fixed dies are spliced into the fixed die 21, it is not only beneficial to reduce the processing difficulty, but also even if an error occurs during the processing of a certain sub-fixed die, only this one sub-fixed die needs to be scrapped, thus facilitating cost reduction.

[0088] In some instances, refer to Figure 3 , the splicing position of at least part of the sub-moving dies is located at the umbrella skirt cavity 235.

[0089] Here, the splicing position of at least part of the sub-moving dies being located at the umbrella skirt cavity 235 can mean that the splicing position of part of the sub-moving dies is located at the umbrella skirt cavity 235, or it can also mean that the splicing positions of all the sub-moving dies are located at the umbrella skirt cavity 235.

[0090] In this embodiment, by setting the splicing position of at least part of the sub-moving dies at the umbrella skirt cavity 235, during the injection of the melt into the insulation layer cavity 23, the melt may seep into the splicing joint of the adjacent sub-moving dies. After the melt solidifies and demolds, a splicing line may be generated at the splicing position of the sub-moving dies. By setting the splicing position of the adjacent sub-moving dies at the umbrella skirt cavity 235, the splicing line after demolding is located at the outermost side of the umbrella skirt 121, facilitating the removal of the splicing line, thereby being beneficial to improving the quality and aesthetics of the pole column 10.

[0091] In some instances, refer to Figure 3 , the splicing position of at least part of the sub-fixed dies is located at the umbrella skirt cavity 235.

[0092] Here, at least part of the splicing positions of the sub-fixed molds are located at the umbrella skirt cavity 235. It can be that part of the splicing positions of the sub-fixed molds are located at the umbrella skirt cavity 235, or all the splicing positions of the sub-fixed molds are located at the umbrella skirt cavity 235.

[0093] In this embodiment, by setting at least part of the splicing positions of the sub-fixed molds at the umbrella skirt cavity 235, during the injection of the melt into the insulating layer cavity 23, the melt may penetrate into the splicing joints of the adjacent sub-fixed molds. After the melt solidifies and demolds, a splicing line may be generated at the splicing positions of the sub-fixed molds. By setting the splicing positions of the adjacent sub-fixed molds at the umbrella skirt cavity 235, the splicing line after demolding is located at the outermost side of the umbrella skirt 121, which is convenient for removing the splicing line, thereby being beneficial to improving the quality and aesthetics of the pole column 10.

[0094] It should be noted that the specific splitting method of the moving mold 22 and the specific splitting method of the fixed mold 21 are not limited here.

[0095] Exemplarily, the fixed mold 21 includes a plurality of first split molds and at least one second split mold. The plurality of first split molds are spliced in sequence along the axial direction of the pole column 10 for forming the cavity in the axial direction of the pole column 10, and at least one second split mold is spliced in sequence along the radial direction of the pole column 10 for forming the cavity corresponding to the outgoing end 14 of the pole column 10. Among them, the second split mold is arranged below a part of the first split molds in the middle of the plurality of first split molds, and at least part of the second split mold is clamped between the first split molds at both ends of the pole column 10.

[0096] Taking the fixed mold 21 as an example for introduction, please refer to Figure 3 , the fixed mold 21 includes the first sub-fixed mold 211, the second sub-fixed mold 212, the third sub-fixed mold 213, the fourth sub-fixed mold 214, the fifth sub-fixed mold 215, the sixth sub-fixed mold 216, the seventh sub-fixed mold 217, the eighth sub-fixed mold 218, the ninth sub-fixed mold 219, which are spliced in sequence along the axial direction of the pole column 10. The tenth sub-fixed mold 220, the eleventh sub-fixed mold 221, and the twelfth sub-fixed mold 222 are sequentially arranged at the bottoms of the third sub-fixed mold 213, the fourth sub-fixed mold 214, the fifth sub-fixed mold 215, the sixth sub-fixed mold 216, the seventh sub-fixed mold 217, and the eighth sub-fixed mold 218. That is to say, the tenth sub-fixed mold 220 covers the bottoms of the third sub-fixed mold 213, the fourth sub-fixed mold 214, the fifth sub-fixed mold 215, the sixth sub-fixed mold 216, the seventh sub-fixed mold 217, and the eighth sub-fixed mold 218. The eleventh sub-fixed mold 221 is arranged at the bottom of the tenth sub-fixed mold 220, and the twelfth sub-fixed mold 222 is arranged at the bottom of the eleventh sub-fixed mold 221. And the tenth sub-fixed mold 220 and the eleventh sub-fixed mold 221 are clamped between the second sub-fixed mold 212 and the ninth sub-fixed mold 219.

[0097] Here, the first split mold includes a first sub-fixed mold 211, a second sub-fixed mold 212, a third sub-fixed mold 213, a fourth sub-fixed mold 214, a fifth sub-fixed mold 215, a sixth sub-fixed mold 216, a seventh sub-fixed mold 217, an eighth sub-fixed mold 218, and a ninth sub-fixed mold 219.

[0098] Here, the second split mold includes a tenth sub-fixed mold 220, an eleventh sub-fixed mold 221, and a twelfth sub-fixed mold 222.

[0099] On the one hand, the tenth sub-fixed mold 220, the eleventh sub-fixed mold 221, and the twelfth sub-fixed mold 222 are sequentially arranged at the bottom of the third sub-fixed mold 213, the fourth sub-fixed mold 214, the fifth sub-fixed mold 215, the sixth sub-fixed mold 216, the seventh sub-fixed mold 217, and the eighth sub-fixed mold 218, and the tenth sub-fixed mold 220 and the eleventh sub-fixed mold 221 are sandwiched between the second sub-fixed mold 212 and the ninth sub-fixed mold 219, which is beneficial to improving the integrity of the structure of the fixed mold 21. On the other hand, the tenth sub-fixed mold 220, the eleventh sub-fixed mold 221, and the twelfth sub-fixed mold 222 do not cover the gaps between the first sub-fixed mold 211 and the second sub-fixed mold 212, between the second sub-fixed mold 212 and the third sub-fixed mold 213, and between the eighth sub-fixed mold 218 and the ninth sub-fixed mold 219. Thus, during the process of injecting the melt into the insulating layer cavity 23, it is beneficial to exhaust air through the gaps between the first sub-fixed mold 211 and the second sub-fixed mold 212, between the second sub-fixed mold 212 and the third sub-fixed mold 213, and between the eighth sub-fixed mold 218 and the ninth sub-fixed mold 219.

[0100] Here, the tenth sub-fixed mold 220, the eleventh sub-fixed mold 221, and the twelfth sub-fixed mold 222 can be bolted to the fourth sub-fixed mold 214, the fifth sub-fixed mold 215, and / or the sixth sub-fixed mold 216.

[0101] As an example, the tenth sub-fixed mold 220, the eleventh sub-fixed mold 221, and the twelfth sub-fixed mold 222 are bolted to the fifth sub-fixed mold 215 by a set of bolts, and are also bolted to the fourth sub-fixed mold 214 and the sixth sub-fixed mold 216 by a set of bolts.

[0102] Among them, there is an umbrella skirt cavity 235 at the joint of the first sub-fixed mold 211 and the second sub-fixed mold 212, an umbrella skirt cavity 235 at the joint of the second sub-fixed mold 212 and the third sub-fixed mold 213, an umbrella skirt cavity 235 at the joint of the third sub-fixed mold 213 and the fourth sub-fixed mold 214, an umbrella skirt cavity 235 at the joint of the fourth sub-fixed mold 214 and the fifth sub-fixed mold 215, an umbrella skirt cavity 235 at the joint of the fifth sub-fixed mold 215 and the sixth sub-fixed mold 216, an umbrella skirt cavity 235 at the joint of the sixth sub-fixed mold 216 and the seventh sub-fixed mold 217, an umbrella skirt cavity 235 at the joint of the seventh sub-fixed mold 217 and the eighth sub-fixed mold 218, an umbrella skirt cavity 235 at the joint of the eighth sub-fixed mold 218 and the ninth sub-fixed mold 219, an umbrella skirt cavity 235 at the joint of the tenth sub-fixed mold 220 and the eleventh sub-fixed mold 221, and an umbrella skirt cavity 235 at the joint of the eleventh sub-fixed mold 221 and the twelfth sub-fixed mold 222.

[0103] Exemplarily, partial side walls of the fifth sub-fixed mold 215, the tenth sub-fixed mold 220, the eleventh sub-fixed mold 221, and the twelfth sub-fixed mold 222 are recessed to form an outgoing line end cavity 236, and the outgoing line end cavity 236 is used for molding the outgoing line end 14. Among them, partial side walls of the fifth sub-fixed mold 215 are recessed to form the main area of the outgoing line end cavity 236. Thus, the dimension of the fifth sub-fixed mold 215 in the axial direction of the pole column 10 is greater than those of the first sub-fixed mold 211, the second sub-fixed mold 212, the third sub-fixed mold 213, the fourth sub-fixed mold 214, the sixth sub-fixed mold 216, the seventh sub-fixed mold 217, the eighth sub-fixed mold 218, and the ninth sub-fixed mold 219 in the axial direction of the pole column 10. In this way, it is beneficial to reduce the splicing line of the pole column 10 at the outgoing line end 14.

[0104] Exemplarily, partial side walls of the fifth sub-fixed mold 215 are recessed to form the umbrella skirt cavity 235.

[0105] It should be noted that the specific splitting method of the moving mold 22 can refer to the splitting method of the fixed mold 21, which will not be elaborated here.

[0106] In the description of the present disclosure, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in still other embodiments", or "exemplary", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present disclosure. In the present disclosure, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine the different embodiments or examples described in the present disclosure and the features of different embodiments or examples.

[0107] The above are only the preferred embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, various changes and modifications can be made to the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure are included within the protection scope of the present disclosure.

Claims

1. A pole mold for forming the insulating layer of a pole, characterized in that: The pole comprises a pole body and the insulating layer wrapped around the outer surface of the pole body, an inlet terminal is arranged at one end of the pole along the axial direction, and an outlet terminal is arranged protruding along the radial direction of the pole; The pole mold is provided with a pole cavity and a glue injection port. During the molding of the insulating layer, the pole body is arranged in the pole cavity, and an insulating layer cavity is formed between the outer surface of the pole body and the cavity wall of the pole cavity, wherein the height direction of the pole mold is perpendicular to the axial direction of the pole, the outlet terminal is arranged toward the bottom of the pole mold, and the glue injection port is formed at the lower part of the insulating layer cavity; The outer surface of the insulating layer is protrudingly provided with a plurality of sheds; the cavity wall of the insulating layer cavity is recessed to form a plurality of shed cavities, and the shed cavities are used to form the sheds; The pole mold comprises a fixed mold and a movable mold, the fixed mold and the movable mold are butted together along a first direction to form the pole cavity and the injection port, and the first direction is perpendicular to the height direction of the pole mold and the axial direction of the pole; The fixed mold includes a plurality of first sub-molds and at least one second sub-mold, wherein the plurality of first sub-molds are sequentially spliced ​​along the axial direction of the pole to form a cavity in the axial direction of the pole, and the at least one second sub-mold is sequentially spliced ​​along the radial direction of the pole to form an outlet terminal cavity, and the outlet terminal cavity is used to mold the outlet terminal; wherein the second sub-mold is arranged below a portion of the first sub-mold in the middle of the plurality of first sub-molds, and at least a portion of the second sub-mold is sandwiched between the first sub-molds at both ends of the pole, and the splicing position of at least a portion of the first sub-mold and at least a portion of the second sub-mold is located at the shed cavity; The first split mold includes a fifth sub-fixed mold, a portion of the side wall of the fifth sub-fixed mold is recessed and independently forms the main area of ​​the outlet terminal cavity, a portion of the side wall is recessed to form the umbrella skirt cavity, and a portion of the side wall of the fifth sub-fixed mold and at least one of the second split molds is recessed to form the outlet terminal cavity.

2. The pole mold according to claim 1, characterized in that: The glue injection port is formed below the pole body; or, The outlet terminal is arranged vertically downward.

3. The pole mold according to claim 1, characterized in that: The insulating layer cavity comprises a first connecting section and a second connecting section arranged in sequence along the axial direction, the outlet end is located in the first connecting section, the inlet end is located in the second connecting section, and the first connecting section and the second connecting section are both provided with the glue injection port.

4. The pole mold according to claim 3, characterized in that: The dimension of the first connecting section in the height direction of the pole mold is greater than the dimension of the second connecting section in the height direction of the pole mold; the number of the injection ports on the first connecting section is greater than the number of the injection ports on the second connecting section.

5. The pole mold according to claim 3, characterized in that: The first connecting section includes a first part and a second part which are arranged in sequence along the axial direction, the outlet end is arranged at the second part, and the first part is arranged at an end of the second part away from the second connecting section; wherein the first part and the second part are both provided with the glue injection port.

6. The pole mold according to claim 1, characterized in that: The outer surface of the insulating layer is protrudingly provided with a plurality of umbrella skirts; the cavity wall of the insulating layer cavity is recessed to form a plurality of umbrella skirt cavities, the umbrella skirt cavities are used to form the umbrella skirts, and at least part of the cavity walls of the umbrella skirt cavities are provided with the glue injection ports.

7. The pole mold according to any one of claims 1 to 6, characterized in that: The pole mold comprises a mounting channel, an injection pipe is provided inside the mounting channel, and the injection pipe is connected to the glue injection port.

8. The pole mold according to any one of claims 1 to 5, characterized in that: The pole mold comprises a die head, and the pole body is connected to the pole mold through the die head.

9. The pole mold according to claim 8, characterized in that: The movable mold includes a plurality of sub-movable molds, and at least some of the sub-movable molds are spliced ​​along the axial direction of the pole to form the movable mold.

10. The pole mold according to claim 9, characterized in that: At least part of the splicing positions of the sub-movable molds are located at the umbrella skirt cavity.

Images