Pole mold

Abstract

The embodiment of the invention discloses a pole mold which is used for forming an insulating layer of a pole. The pole comprises a pole body and an insulating layer wrapping the outer surface of the pole body, a wire inlet end is arranged at one end of the pole in the axial direction, and a wire outlet end is arranged on the pole in a protruding mode in the radial direction. The terminal post mold is provided with a terminal post cavity and a glue injection port, the terminal post body is arranged in the terminal post cavity during molding of the insulating layer, an insulating layer cavity is formed between the outer surface of the terminal post body and the cavity wall of the terminal post cavity, the height direction of the terminal post mold is perpendicular to the axial direction of the terminal post, and the wire outlet end is arranged towards the lower part of the terminal post mold; and the glue injection port is formed at the lower part of the insulating layer cavity. The glue injection port is formed in the lower portion of the insulating layer cavity, the axial direction of the pole is arranged to be perpendicular to the height direction of the pole mold, and the wire outlet end is arranged to face the lower portion of the pole mold, so that the flow height needed by melt can be reduced, the situation that bubbles are formed in the insulating layer cavity can be improved, and the production efficiency is improved. And the problem that pores are formed on the appearance surface of the pole can be improved.

Description

Technical Field

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

[0002] The pole-mounted circuit breaker is an important device used to protect the safe operation of the power system. It is usually installed on the pole of the transmission line. It can quickly cut off the circuit when the power 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, a mechanism box and a terminal FTU (Feeder Terminal Unit, distribution switch monitoring terminal). A vacuum arc chamber is usually set in the pole. The upper end of the vacuum arc chamber is connected to the incoming line end, and the lower end of the vacuum arc chamber is connected to the outgoing line end. The incoming line end, the vacuum arc chamber and the outgoing line end form a passage. The detection signal of the pole will be transmitted to the terminal FTU. The terminal FTU determines whether the power transmission state is abnormal based on the detection signal of the pole. If it is abnormal, it sends an action signal to the mechanism box, thereby controlling the mechanism box to pull the insulating pull rod in the pole, thereby realizing the rapid disconnection of the circuit.

[0003] In the related art, during the injection molding process of the pole, air holes may exist on the appearance surface of the pole, which affects the product quality and appearance. Summary of the invention

[0004] In view of this, the embodiments of the present application hope to provide a pole mold to improve the problem of pores formed on the appearance surface of the pole and improve product quality and aesthetics.

[0005] To solve the above problems, the technical solution of the embodiment of the present application is implemented as follows: The embodiment of the present application provides a pole mold for forming an insulating layer of a pole, wherein the pole comprises a pole body and the insulating layer wrapped around the outer surface of the pole body, an inlet terminal is provided at one end of the pole along the axial direction, and an outlet terminal is provided 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.

[0006] In some embodiments, the glue injection port is formed below the pole body.

[0007] In some embodiments, the outlet terminal is arranged vertically downward.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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; In some embodiments, at least part of the splicing positions of the sub-movable molds are located at the umbrella skirt cavity.

[0017] In some embodiments, at least part of the splicing positions of the sub-fixed molds are located at the umbrella skirt cavity.

[0018] The pole mold of the embodiment of the present application is used to form a pole. The pole mold is provided with a pole cavity and a glue injection port, and the pole body is arranged in the pole cavity, so that the outer surface of the pole body and the cavity wall of the pole cavity form an insulating layer cavity, and 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 body. The axial dimension of the pole is larger than the radial dimension of the pole, and the injection port is formed at the lower part of the insulating layer cavity. Therefore, by setting the axial direction of the pole to be perpendicular to the height direction of the pole mold, it is beneficial to reduce the height required for the melt to flow, and ensure that the melt still has high fluidity when it spreads to the top of the insulating layer cavity, thereby improving the formation of bubbles in the insulating layer cavity, and further improving the problem of pores formed on the appearance of the pole; in addition, by setting the outlet terminal toward the bottom of the pole mold, that is, setting the area where the pole structure is relatively complex downward, that is, setting it close to the injection port, and setting the area where the pole structure is relatively simple away from the injection port, this is beneficial to improve the situation where bubbles are formed in the insulating layer cavity in the area away from the injection port, and further improving the problem of pores formed on the appearance of the pole, thereby improving product quality and aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a pole mold in some embodiments of the present application; Figure 2 for Figure 1 A cross-sectional view of Figure 3 A schematic diagram of a partial structure of a pole mold in some embodiments of the present application; Figure 4 This is a schematic diagram of the connection structure between the pole and the injection molding pipe in some embodiments of the present application; Figure 5 This is a schematic diagram of the structure of the poles of some embodiments of the present application.

[0020] Description of Reference Numerals 10. Pole; 11. Pole body; 12. Insulation layer; 121. Sheath; 13. Inlet terminal; 14. Outlet terminal; 20. Pole 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 , the ninth sub-fixed mold; 220, the tenth sub-fixed mold; 221, the eleventh sub-fixed mold; 222, the twelfth sub-fixed mold; 22, the movable mold; 23, the insulating layer cavity; 231, the first connecting section; 232, the second connecting section; 233, the first part; 234, the second part; 235, the umbrella skirt cavity; 236, the outlet terminal cavity; 24, the injection port; 25, the injection pipe; 26, the die head; 27, the installation channel. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and are therefore only used as examples, and the protection scope of the present application cannot be limited by this. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0022] In the description of the embodiments of the present application, the technical terms "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 number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] 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 three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0025] 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.

[0026] 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.

[0027] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] 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.

[0029] 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 .

[0030] 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.

[0031] 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.

[0032] Exemplarily, the pole body 11 includes a sealing body, a conductive rod, a current sensor and a capacitor assembly.

[0033] 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.

[0034] The coil of the current sensor is also sealed in the sealing body, which is used to measure the current of the conductive rod. As an example, the conductive rod can be inserted into the coil, so that the current sensor can measure the current of the conductive rod.

[0035] Here, “sealed in a sealing body” means that the above-mentioned components are embedded in the sealing body through special embedding technology, so that they form an inseparable whole with the sealing body. As an example, in the actual production and preparation process, the above-mentioned components can be assembled in advance, and then a sealing material such as epoxy resin can be poured thereon. After the sealing material solidifies, a sealing body is formed, thereby achieving the sealing of the above-mentioned components in the sealing body. Alternatively, a sealing body can be formed by pouring a sealing material into a mold corresponding to the above-mentioned components, and then the mold can be removed, the above-mentioned components can be loaded into the sealing body and cast a second time, thereby sealing the above-mentioned components in the sealing body.

[0036] The capacitor assembly is connected to the conductive rod, and the capacitor assembly can be used as a voltage sensor and / or an energy extraction 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 circuit breaker on the pole. When the capacitor assembly is used as an energy extraction 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 circuit breaker.

[0037] In some embodiments, the pole-mounted circuit breaker includes a mechanism box and a pole 10 described in any embodiment of the present application, and the current sensor and / or capacitor assembly is electrically connected to the mechanism box.

[0038] The electrical signals of the current sensor and / or voltage sensor are transmitted to the terminal FTU. The terminal FTU decides whether to send a circuit-breaking signal to the mechanism box based on the electrical signals. After receiving the circuit-breaking signal from the terminal FTU, the mechanism box performs a circuit-breaking operation. The specific structure of the mechanism box can refer to the relevant technology in the field and will not be repeated here.

[0039] Here, the insulating layer 12 is wrapped around the outer surface of the pole body 11, and the sealing body is arranged in the insulating layer 12. In this way, the sealing body can be protected, and the service life of the pole 10 is further improved.

[0040] 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, silicone, and injection molding materials on the outer surface of the solid sealing body.

[0041] Here, the sealing body is sealed in the insulating layer 12 , so that the stability of the overall structure of the pole 10 and its insulation performance can be improved.

[0042] Here, the inlet terminal 13 and the outlet terminal 14 of the pole 10 are used to communicate with an external circuit.

[0043] It should be noted that the lower portion of the insulating layer cavity 23 refers to a portion that does not exceed half of the height of the insulating layer cavity 23 .

[0044] For example, see Figures 2 to 3 The glue injection port 24 is located below the pole body 11 .

[0045] Here, the height direction of the pole mold 20 is perpendicular to the axial direction of the pole 10, that is, the height direction of the pole mold 20 is perpendicular to the height direction of the pole 10, that is, the pole 10 is placed horizontally in the pole mold 20, which is helpful to reduce the distance required for the melt to flow in the height direction.

[0046] The pole 10 is provided with an outlet terminal 14 protruding radially. Therefore, the structure of the pole 10 at the outlet terminal 14 is relatively complex compared with the structure of other areas of the pole 10 except the outlet terminal 14 in the radial direction. By arranging the outlet terminal 14 toward the bottom of the pole mold 20, it is helpful to improve the situation where bubbles are formed in the insulating layer cavity 23 in the area away from the injection port 24.

[0047] In the related art, the axial (height) size of the pole is larger than the radial (lateral) size of the pole. If the melt is injected from the bottom of the pole in the direction of positive placement of the pole (that is, the height direction of the pole is parallel to the height direction of the pole mold), the injection height will be too high. When the melt gradually spreads from the bottom of the insulation layer cavity to the top, the fluidity of the melt will be greatly lost, resulting in bubbles being easily left on the top of the cavity during injection molding, which may cause pores inside or on the surface of the product, affecting product quality.

[0048] The pole mold 20 of the embodiment of the present application is used to form the pole 10. The pole mold 20 is provided with a pole cavity and a glue injection port 24. The pole body 11 is arranged in the pole cavity, so that the outer surface of the pole body 11 and the cavity wall of the pole cavity form an insulating layer cavity 23, and the melt is injected into the insulating layer cavity 23 through the glue injection port 24, so that the insulating layer 12 can be formed on the outer surface of the pole body 11. The axial dimension of the pole 10 is greater than the radial dimension of the pole 10, and the 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 to be perpendicular to the height direction of the pole mold 20, it is beneficial to reduce the height required for the melt to flow, and ensure that the melt still has high fluidity when it spreads to the top of the insulating layer cavity, thereby improving the formation of bubbles in the insulating layer cavity 23, and further improving the problem of pores formed on the appearance surface of the pole 10; in addition, by setting the outlet terminal 14 toward the bottom of the pole mold 20, that is, setting the area with a relatively complex structure of the pole 10 downward, that is, setting it close to the injection port 24, and setting the area with a relatively simple structure of the pole 10 away from the injection port 24, this is beneficial to improve the situation of bubbles formed in the insulating layer cavity 23 in the area away from the injection port 24, and further improving the problem of pores formed on the appearance surface of the pole 10, thereby improving product quality and aesthetics.

[0049] In some instances, see Figure 2 , the outlet terminal 14 is arranged vertically downward.

[0050] Here, the height direction of the pole mold 20 is parallel to the vertical direction.

[0051] In this embodiment, by setting the outlet terminal 14 vertically downward, the pole 10 is roughly symmetrical about the vertical plane. In this way, the melt in the insulating layer cavity 23 can be synchronously spread up from both sides of the vertical plane, which is conducive to forming the confluence point of the melt roughly at the top of the pole body 11, which is conducive to reducing the generation of bubbles and improving product quality and aesthetics.

[0052] In some instances, see Figure 2 The insulating layer cavity 23 includes a first connecting section 231 and a second connecting section 232 arranged in sequence along the axial direction, the outlet terminal 14 is located in the first connecting section 231, the inlet terminal 13 is located in the second connecting section 232, and both the first connecting section 231 and the second connecting section 232 are provided with a glue injection port 24.

[0053] Here, the confluence point of the melt can be controlled to be roughly formed at the top of the pole body 11, which is beneficial to reduce the generation of bubbles and improve product quality and aesthetics. However, if the melt flows in various axial areas of the insulating layer cavity 23 are not synchronized, for example, the melt flows faster along the first axial side of the pole 10 and flows slower along the second axial side of the pole 10, then before the first side is almost filled, it may continue to flow to the second side, resulting in a more complex confluence point of the melt. When the confluence point of the melt is more complex, bubbles are likely to be generated.

[0054] In this embodiment, the insulating layer cavity 23 is divided into a first connecting section 231 and a second connecting section 232 along the axial direction, and the first connecting section 231 and the second connecting section 232 are both provided with a glue injection port 24, that is, the insulating layer cavity 23 is provided with a first connecting section 231 corresponding to the outlet terminal 14 and a second connecting section 232 corresponding to the inlet terminal 13 are both distributed with a glue injection port 24, so that the melting points on both sides of the first connecting section 231 and the second connecting section 232 are basically synchronously spread up, so that the confluence point of the melt is roughly formed at the top of the pole body 11.

[0055] In some instances, see Figures 2 to 4 The dimension of the first connecting section 231 in the height direction of the pole mold 20 is greater than the dimension of the second connecting section 232 in the height direction of the pole mold 20; the number of the injection ports 24 on the first connecting section 231 is greater than the number of the injection ports 24 on the second connecting section 232.

[0056] It can be understood that since the size of the first connecting section 231 in the height direction of the pole mold 20 is larger than the size of the second connecting section 232 in the height direction of the pole mold 20, the volume of melt required to fill the first connecting section 231 is relatively large, while the volume of melt required to fill the second connecting section 232 is relatively small. Therefore, by setting the number of injection ports 24 on the first connecting section 231 to be greater than the number of injection ports 24 on the second connecting section 232, it is beneficial to control the confluence point of the melt to be roughly formed at the top of the pole body 11.

[0057] As an example, the first connecting section 231 is provided with three glue injection ports 24 , and the second connecting section 232 is provided with two glue injection ports 24 .

[0058] In some instances, see Figures 2 to 4The first connecting section 231 includes a first portion 233 and a second portion 234 arranged in sequence along the axial direction, the outlet terminal 14 is arranged at the second portion 234, and the first portion 233 is arranged at one end of the second portion 234 away from the second connecting section 232; wherein the first portion 233 and the second portion 234 are both provided with a glue injection port 24. The glue injection port 24 at the second portion 234 is located at a side of the second portion close to the first portion and at the umbrella skirt of the outlet terminal.

[0059] Here, the second portion 234 is provided with the outlet terminal 14 , that is, the size of the second portion 234 in the height direction of the pole mold 20 is greater than the size of the first portion 233 in the height direction of the pole mold 20 .

[0060] In this embodiment, a glue injection port 24 is provided in the second part 234 provided with the outlet terminal 14. Since the structure of the second part 234 is relatively complex, the corresponding glue injection port 24 is provided, which is conducive to the melt filling the second part 234, and is conducive to reducing the generation of bubbles in the second part 234, and is also conducive to improving the quality and aesthetics of the second part 234; in addition, by providing a glue injection port 24 in the first part 233, it is conducive to further reducing the total height of the melt injected into the first part 233, thereby improving the melt injection quality, and further conducive to reducing the generation of bubbles in the first part 233, and is also conducive to improving the quality and aesthetics of the first part 233.

[0061] As an example, the first portion 233 is provided with two glue injection ports 24 , and the second portion 234 is provided with one glue injection port 24 .

[0062] In some instances, see Figures 2 to 5 The outer surface of the insulating layer 12 is protruding with a plurality of sheds 121. The cavity wall of the insulating layer cavity 23 is recessed to form a plurality of shed cavities 235, which are used to form the sheds 121. At least some of the shed cavities 235 are provided with a glue injection port 24.

[0063] The multiple mentioned in the embodiments of the present application refers to a number of two or more.

[0064] Here, a plurality of sheds 121 are protrudingly provided on the outer surface of the insulating layer 12 , and the sheds 121 are used to increase the creepage distance of the pole 10 , thereby improving the safety of the operator.

[0065] As an example, a plurality of sheds 121 are arranged at intervals along the axial direction of the pole 10 .

[0066] Here, at least part of the wall of the umbrella skirt cavity 235 is provided with the glue injection port 24 means that the wall of part of the umbrella skirt cavity 235 is provided with the glue injection port 24, or the wall of all the umbrella skirt cavity 235 is provided with the glue injection port 24.

[0067] In this embodiment, by providing the cavity wall of at least part of the shed cavity 235 with a glue injection port 24, on the one hand, it is beneficial for the melt to fill the shed cavity 235 and reduce the generation of bubbles in the shed cavity 235. On the other hand, the glue injection port 24 formed on the pole 10 after demolding can be located on the shed 121, which is convenient for polishing and is beneficial for improving the quality and aesthetics of the pole 10.

[0068] In some instances, see Figures 1 to 5 The pole mold 20 includes a fixed mold 21 and a movable mold 22, which are butted together along a first direction to form a pole cavity and a glue injection port 24. The first direction is perpendicular to the height direction of the pole mold 20 and the axial direction of the pole 10.

[0069] In the related art, an injection channel may be defined between the fixed mold and the movable mold, and the injection channel is connected to the injection port. However, there may be some gap between the fixed mold and the movable mold, which may affect the sealing of the injection channel and may increase the pressure required for injection.

[0070] The pole mold 20 provided in the embodiment of the present application includes a mounting channel. Figure 4 The installation channel 27 has an injection pipe 25 inside, and the injection pipe 25 is connected to the glue injection port 24.

[0071] By forming a mounting channel 27 on the contact surface of the fixed mold 21 and the movable mold 22, the injection pipe 25 is arranged in the mounting channel 27. This is beneficial to improving the sealing of the injection molding, thereby ensuring that the melt still has high fluidity when it spreads to the top of the insulating layer cavity, and is beneficial to improving the quality and aesthetics of the pole 10.

[0072] In some instances, see Figure 1 to Figure 2 The pole mold 20 includes a die head 26 , and the pole body 11 is connected to the pole mold 20 through the die head 26 .

[0073] Here, the pole 10 is connected to the pole mold 20 via a die head 26 , that is, the die head 26 is provided to realize the installation of the pole body 11 so that the outer surface of the pole body 11 and the cavity wall of the pole cavity form an insulating layer cavity 23 .

[0074] In some instances, see Figures 1 to 3 The movable mold 22 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 10 to form the movable mold 22.

[0075] That is to say, the movable mold 22 is composed of a plurality of sub-movable molds. When processing the mold, a single sub-movable mold can be processed separately, and then the plurality of sub-movable molds can be combined into the movable mold 22.

[0076] It is understandable that if the entire movable mold 22 is directly processed, not only is the processing difficult, but also if an error occurs during the processing, the entire movable mold 22 can only be scrapped. However, if the sub-movable molds are processed first and then spliced ​​into the movable mold 22, it is not only helpful to reduce the processing difficulty, but also even if an error occurs during the processing of a sub-movable mold, only this sub-movable mold needs to be scrapped, which is helpful to reduce costs.

[0077] In some instances, see Figures 1 to 3 The fixed mold 21 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 10 to form the fixed mold 21.

[0078] That is to say, the fixed mold 21 is composed of a plurality of sub-fixed molds. When processing the mold, a single sub-fixed mold can be processed separately, and then the plurality of sub-fixed molds can be combined into the fixed mold 21.

[0079] It is understandable that if the entire fixed mold 21 is directly processed, not only is the processing difficult, but also if an error occurs during the processing, the entire fixed mold 21 must be scrapped. However, if the sub-fixed molds are processed first and then spliced ​​into the fixed mold 21, it is not only helpful to reduce the processing difficulty, but also even if an error occurs during the processing of a sub-fixed mold, only this sub-fixed mold needs to be scrapped, which is helpful to reduce costs.

[0080] In some instances, see Figure 3 , at least part of the splicing position of the sub-movable mold is located at the umbrella skirt cavity 235.

[0081] Here, at least part of the splicing positions of the sub-movable molds are located at the umbrella skirt cavity 235 , part of the splicing positions of the sub-movable molds may be located at the umbrella skirt cavity 235 , or all of the splicing positions of the sub-movable molds may be located at the umbrella skirt cavity 235 .

[0082] In this embodiment, by setting the splicing positions of at least part of the sub-movable molds at the umbrella skirt cavity 235, during the injection of melt into the insulating layer cavity 23, the splicing positions of adjacent sub-movable molds may be infiltrated by melt, and after the melt is solidified and demolded, splicing lines may be generated at the splicing positions of the sub-movable molds. By setting the splicing positions of adjacent sub-movable molds at the umbrella skirt cavity 235, the splicing lines after demolding are located at the outermost side of the umbrella skirt 121, so as to facilitate the removal of the splicing lines, thereby facilitating the improvement of the quality and aesthetics of the pole 10.

[0083] In some instances, see Figure 3 , at least part of the splicing position of the sub-fixed mold is located at the umbrella skirt cavity 235.

[0084] Here, at least part of the splicing positions of the sub-fixed molds are located at the umbrella skirt cavity 235 , part of the splicing positions of the sub-fixed molds may be located at the umbrella skirt cavity 235 , or all of the splicing positions of the sub-fixed molds may be located at the umbrella skirt cavity 235 .

[0085] In this embodiment, by setting the splicing positions of at least part of the sub-fixed molds at the shed cavity 235, during the period of injecting melt into the insulating layer cavity 23, the splicing positions of adjacent sub-fixed molds may be infiltrated by melt, and after the melt is solidified and demolded, splicing lines may be generated at the splicing positions of the sub-fixed molds. By setting the splicing positions of adjacent sub-fixed molds at the shed cavity 235, the splicing lines after demolding are located at the outermost side of the shed 121, so as to facilitate the removal of the splicing lines, thereby facilitating the improvement of the quality and aesthetics of the pole 10.

[0086] It should be noted that the specific splitting method of the movable mold 22 and the specific splitting method of the fixed mold 21 are not limited here.

[0087] Exemplarily, the fixed mold 21 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 10 to form a cavity in the axial direction of the pole 10, and at least one second sub-mold is sequentially spliced ​​along the radial direction of the pole 10 to form a cavity corresponding to the outlet terminal 14 of the pole 10; wherein the second sub-mold is arranged below a portion of the first sub-mold centered among the plurality of first sub-molds, and at least a portion of the second sub-mold is clamped between the first sub-molds at both ends of the pole 10.

[0088] Take fixed mold 21 as an example for introduction. Figure 3 The fixed mold 21 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, which are sequentially spliced ​​along the axial direction of the pole 10, and the tenth sub-fixed mold 220, the eleventh sub-fixed mold 221, and the twelfth sub-fixed mold 222 are sequentially arranged on the third sub-fixed mold 213, the fourth sub-fixed mold 214, the fifth sub-fixed mold 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, that is, the tenth sub-fixed mold 220 covers 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, 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. In addition, 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.

[0089] Here, the first sub-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 .

[0090] Here, the second sub-mold includes a tenth sub-stationary mold 220 , an eleventh sub-stationary mold 221 , and a twelfth sub-stationary mold 222 .

[0091] On the one hand, the tenth sub-fixed mold 220, the eleventh sub-fixed mold 221, and the twelfth sub-fixed mold 222 are 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 in sequence, 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 fixed mold 21 structure. On the other hand, the tenth sub-mold 220, the eleventh sub-mold 221, and the twelfth sub-mold 222 do not cover the gap between the first sub-mold 211 and the second sub-mold 212, the gap between the second sub-mold 212 and the third sub-mold 213, and the gap between the eighth sub-mold 218 and the ninth sub-mold 219. In this way, in the process of injecting the melt into the insulating layer cavity 23, it is beneficial to exhaust through the gap between the first sub-mold 211 and the second sub-mold 212, the gap between the second sub-mold 212 and the third sub-mold 213, and the gap between the eighth sub-mold 218 and the ninth sub-mold 219.

[0092] Here, the tenth sub-fixed mold 220 , the eleventh sub-fixed mold 221 , and the twelfth sub-fixed mold 222 may be connected to the fourth sub-fixed mold 214 , the fifth sub-fixed mold 215 , and / or the sixth sub-fixed mold 216 by bolts.

[0093] As an example, the tenth sub-fixed mold 220 , the eleventh sub-fixed mold 221 , and the twelfth sub-fixed mold 222 are connected to the fifth sub-fixed mold 215 through a set of bolts, and are also connected to the fourth sub-fixed mold 214 and the sixth sub-fixed mold 216 through a set of bolts.

[0094] Among them, the joint of the first sub-fixed mold 211 and the second sub-fixed mold 212 has an umbrella skirt cavity 235, the joint of the second sub-fixed mold 212 and the third sub-fixed mold 213 has an umbrella skirt cavity 235, the joint of the third sub-fixed mold 213 and the fourth sub-fixed mold 214 has an umbrella skirt cavity 235, the joint of the fourth sub-fixed mold 214 and the fifth sub-fixed mold 215 has an umbrella skirt cavity 235, and the joint of the fifth sub-fixed mold 215 and the sixth sub-fixed mold 216 has an umbrella skirt cavity 235. The joint of the sixth sub-fixed mold 216 and the seventh sub-fixed mold 217 has an umbrella skirt cavity 235, the joint of the seventh sub-fixed mold 217 and the eighth sub-fixed mold 218 has an umbrella skirt cavity 235, the joint of the eighth sub-fixed mold 218 and the ninth sub-fixed mold 219 has an umbrella skirt cavity 235, the joint of the tenth sub-fixed mold 220 and the eleventh sub-fixed mold 221 has an umbrella skirt cavity 235, and the joint of the eleventh sub-fixed mold 221 and the twelfth sub-fixed mold 222 has an umbrella skirt cavity 235.

[0095] Exemplarily, part of the sidewalls 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 outlet terminal cavity 236, and the outlet terminal cavity 236 is used to mold the outlet terminal 14. Part of the sidewalls of the fifth sub-fixed mold 215 are recessed to form the main area of ​​the outlet terminal cavity 236, so that the size of the fifth sub-fixed mold 215 in the axial direction of the pole 10 is greater than the size 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 10, so that it is helpful to reduce the splicing line of the pole 10 at the outlet terminal 14.

[0096] Exemplarily, a portion of the side wall of the fifth sub-fixed mold 215 is recessed to form an umbrella skirt cavity 235 .

[0097] It should be noted that the specific splitting method of the movable mold 22 can refer to the splitting method of the fixed mold 21, which will not be repeated here.

[0098] In the description of the present disclosure, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. mean that the specific features, structures, materials or characteristics described in conjunction 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 representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in the present disclosure and features of different embodiments or examples, unless they are contradictory.

[0099] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in 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.

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 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. 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.

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

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

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