Die

Abstract

The embodiment of the invention provides a mold. The mold comprises a movable mold and a fixed mold. The fixed mold and the movable mold are separably connected along a first direction, a cavity is defined by the fixed mold and the movable mold, the bottom side of the cavity is provided with a wire outlet end mounting port, the wire outlet end mounting port is used for mounting a wire outlet end of a pole body, and the shape of the cavity is matched with that of a pole. A partial area of the cavity wall of the cavity is sunken to form an umbrella skirt forming groove; and the umbrella skirt forming groove is used for casting and forming an umbrella skirt structure of the outer layer of the pole. And at least one of the movable mold and the fixed mold is also provided with an exhaust overflow area on one side where the movable mold and the fixed mold are attached to each other, and the exhaust overflow area is positioned on the top side of the umbrella skirt forming groove. The exhaust overflow area is provided with an exhaust hole and an overflow groove, at least part of the exhaust hole is located on the side, away from the umbrella skirt forming groove, of the overflow groove and communicated with the outside, and the overflow groove is communicated with the exhaust hole and the umbrella skirt forming groove. In the first direction, the size of the overflow groove is larger than that of the exhaust hole. The mold provided by the embodiment of the invention is good in exhaust effect.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a mold. Background Art

[0002] In the related art, the pole of the pole-mounted circuit breaker includes a pole body made of epoxy resin injection molding. The outer surface of the pole body is covered with a silicone layer, and the silicone layer is provided with a silicone shed. The silicone shed is used to increase the creepage distance of the pole, which can improve the safety of the pole for personnel.

[0003] During silicone injection molding, in order to fill the entire cavity with silicone, the air in the cavity needs to be exhausted as the silicone gradually spreads upward from the bottom of the cavity. However, the mold exhaust effect in the related art is poor, which greatly increases the difficulty and time of injection molding. Summary of the invention

[0004] In view of this, the main purpose of the embodiments of the present application is to provide a mold with good exhaust effect.

[0005] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows: The embodiment of the present application provides a mold, which is used to form a pole outer layer, the pole outer layer is a component of the pole, the pole at least includes a pole body and the pole outer layer, the pole outer layer is coated on the outer surface of the pole body, and the mold includes: Moving model; A fixed mold, wherein the fixed mold and the movable mold are detachably connected along a first direction, and the fixed mold and the movable mold enclose a cavity, the bottom side of the cavity has an outlet terminal installation opening, the outlet terminal installation opening is used to install the outlet terminal of the pole body, and the cavity matches the shape of the pole; A part of the cavity wall of the mold cavity is recessed to form an shed forming groove, and the shed forming groove is used for casting and molding the shed structure of the outer layer of the pole; On the side where the movable mold and the fixed mold are attached to each other, at least one of the movable mold and the fixed mold further has an exhaust overflow area, and the exhaust overflow area is located on the top side of the shed forming groove; The exhaust overflow area has an exhaust hole and an overflow groove, at least a portion of the exhaust hole is located on a side of the overflow groove away from the umbrella skirt forming groove and is connected to the outside, and the overflow groove is respectively connected to the exhaust hole and the umbrella skirt forming groove; along the first direction, the size of the overflow groove is larger than the size of the exhaust hole.

[0006] In one embodiment, the number of the umbrella skirt forming grooves is multiple, and each of the umbrella skirt forming grooves is arranged at intervals along the second direction. The number of the exhaust overflow area is at least one, and each of the umbrella skirt forming grooves is located on the bottom side of the exhaust overflow area; wherein the second direction is respectively perpendicular to the first direction and the top and bottom directions.

[0007] In one embodiment, the multiple shed forming grooves include at least two first shed forming grooves, the multiple exhaust overflow areas include at least two first exhaust overflow areas separated from each other, and each of the first shed forming grooves is arranged in one-to-one correspondence with each of the first exhaust overflow areas.

[0008] In one embodiment, the multiple shed forming grooves include at least two second shed forming grooves, the multiple exhaust overflow areas include a second exhaust overflow area, and the second exhaust overflow area is located above each of the second shed forming grooves and is respectively connected to each of the second shed forming grooves.

[0009] In one embodiment, the mold cavity has a first sub-cavity and a second sub-cavity spaced apart along the second direction, the first sub-cavity is used to install the incoming line end of the pole body, and the second sub-cavity is used to install an end of the pole body away from the incoming line end; The plurality of shed-forming grooves include at least two first shed-forming grooves, the cavity wall of the first sub-cavity forms each of the first shed-forming grooves, the plurality of exhaust overflow areas include at least two mutually separated first exhaust overflow areas, and each of the first shed-forming grooves is arranged in one-to-one correspondence with each of the first exhaust overflow areas; The cavity wall of the second sub-cavity forms the second shed forming grooves, and the first exhaust overflow area and the second exhaust overflow area are separated and arranged along the second direction.

[0010] In one embodiment, each of the second shed forming grooves is located within an extension range of the exhaust hole of the second exhaust overflow area.

[0011] In one embodiment, part of the second umbrella skirt forming groove is located outside the extension range of the overflow groove of the second exhaust overflow area and is located on a side close to the first sub-cavity; and / or, along the second direction, the second exhaust overflow area is arranged close to the side of the second sub-cavity away from the first sub-cavity.

[0012] In one embodiment, the extension length of the exhaust hole is greater than or equal to the extension length of the overflow groove; wherein the second direction is perpendicular to the first direction and the top and bottom directions respectively.

[0013] In one embodiment, the exhaust overflow area has two sections of exhaust holes, the overflow groove is located between the two sections of the exhaust holes, and is respectively connected to the two sections of the exhaust holes, the exhaust hole located on the top side of the overflow groove is the first exhaust hole, and is connected to the outside; the exhaust hole located on the bottom side of the overflow groove is the second exhaust hole, and is connected to the groove formed by the umbrella skirt.

[0014] In one embodiment, an extension length of the first exhaust hole is greater than an extension length of the second exhaust hole.

[0015] In one embodiment, the mold cavity has a first sub-cavity, a second sub-cavity and a third sub-cavity, the first sub-cavity and the second sub-cavity are arranged at intervals along the second direction, the third sub-cavity is located at the bottom side of the first sub-cavity and the second sub-cavity, the first sub-cavity is used to install the incoming line end of the pole body, the second sub-cavity is used to install an end of the pole body away from the incoming line end, and the third sub-cavity is used to install the outgoing line end of the pole body; wherein the second direction is perpendicular to the first direction and the top and bottom directions respectively; The mold has at least one first injection port and multiple second injection ports, the first injection port is connected to the first sub-cavity, a part of the second injection ports is connected to the third sub-cavity, and another part of the second injection ports is connected to the second sub-cavity, and the number of the second injection ports is greater than the number of the first injection ports.

[0016] In one embodiment, the extension length of the exhaust hole along the second direction is greater than the extension length along the first direction; wherein the second direction is perpendicular to the first direction and the top and bottom directions respectively; and / or, the side where the movable mold and the fixed mold are bonded has the exhaust overflow area, and the area corresponding to the exhaust overflow area of ​​the fixed mold and the movable mold is a bonding plane.

[0017] The embodiment of the present application provides a mold, which includes a movable mold and a fixed mold. The fixed mold and the movable mold are enclosed to form a cavity, and the bottom side of the cavity has an outlet terminal installation port, which is used to install the outlet terminal of the pole body, and the cavity matches the shape of the pole. Therefore, during the injection molding process, the pole body can be placed horizontally in the cavity, and the outlet terminal of the pole body is downward. Placing the pole body in this way and injecting silicone will not only avoid the problem of too high injection height, and do not require too much pressure, but also make the upper structure shape of the cavity simpler than the lower part, and when the fluidity of the casting material gradually deteriorates, it can also reduce the risk of obvious pores in the upper part of the cavity. In addition, a part of the cavity wall of the cavity is recessed to form an umbrella skirt forming groove, and the umbrella skirt forming groove is used to cast the umbrella skirt structure of the outer layer of the pole. On the side where the movable mold and the fixed mold are attached to each other, at least one of the movable mold and the fixed mold also has an exhaust overflow area, and the exhaust overflow area is located on the top side of the umbrella skirt forming groove. The exhaust overflow area has an exhaust hole and an overflow groove. At least part of the exhaust hole is connected to the outside world and is located on the side of the overflow groove away from the umbrella skirt forming groove. The overflow groove is connected to the exhaust hole and the umbrella skirt forming groove respectively. Along the first direction, the size of the overflow groove is larger than the size of the exhaust hole. Therefore, on the one hand, since the exhaust hole connected to the outside world is provided on the top side of the umbrella skirt forming groove, when the casting material gradually spreads from the bottom of the cavity to the top, the air in the cavity can be gradually discharged through the exhaust hole above the cavity, thereby achieving a better exhaust effect. On the other hand, by providing the overflow groove, not only the exhaust effect of each exhaust hole can be maintained, but also because the overflow groove has a larger size along the first direction, the risk of the casting material solidifying too quickly in the exhaust hole can be reduced, which helps to discharge small bubbles in the cavity. Therefore, the exhaust effect can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A partial structural schematic diagram of a mold according to an embodiment of the present application; Figure 2 for Figure 1 A schematic diagram of the structure from another perspective; Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0019] Description of Reference Numerals 10. movable mold; 10a. mold cavity; 10aa. first sub-cavity; 10ab. second sub-cavity; 10ac. third sub-cavity; 10b. outlet terminal installation port; 10c. umbrella skirt forming groove; 10ca. first umbrella skirt forming groove; 10cb. second umbrella skirt forming groove; 10d. exhaust overflow area; 10da. first exhaust overflow area; 10db. second exhaust overflow area; 10e. exhaust hole; 10ea. first exhaust hole; 10eb. second exhaust hole; 10f. overflow groove; 10g. first injection port; 10h. second injection port. DETAILED DESCRIPTION

[0020] In this application, the orientation or position relationship of "first direction", "second direction" and "top and bottom directions" is based on the attached Figure 2 It should be understood that these directional terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[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 two or more, 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] An embodiment of the present application provides a mold, which is used to form a pole outer layer. The pole outer layer is a component of the pole. The pole at least includes a pole body and a pole outer layer. The pole outer layer is coated on the outer surface of the pole body. The mold includes a movable mold 10 and a fixed mold.

[0025] See also Figure 1 and Figure 2 The fixed mold and the movable mold 10 are detachably connected along a first direction, and the fixed mold and the movable mold 10 enclose a cavity 10a, and the bottom side of the cavity 10a has an outlet terminal installation opening 10b, and the outlet terminal installation opening 10b is used to install the outlet terminal of the pole body, and the cavity 10a matches the shape of the pole.

[0026] Part of the cavity wall of the cavity 10a is recessed to form an shed forming groove 10c, and the shed forming groove 10c is used for casting and molding the shed structure of the outer layer of the pole.

[0027] On the side where the movable mold 10 and the fixed mold are attached to each other, at least one of the movable mold 10 and the fixed mold further has an exhaust overflow area 10d, and the exhaust overflow area 10d is located on the top side of the shed forming groove 10c.

[0028] The exhaust overflow area 10d has an exhaust hole 10e and an overflow groove 10f. At least part of the exhaust hole 10e is located on the side of the overflow groove 10f away from the umbrella skirt forming groove 10c and is connected to the outside. The overflow groove 10f is respectively connected to the exhaust hole 10e and the umbrella skirt forming groove 10c; along the first direction, the size of the overflow groove 10f is larger than the size of the exhaust hole 10e.

[0029] Specifically, the mold can cast the pole outer layer, and after the casting is completed, the pole outer layer can be coated on the outer surface of the pole body. For example, the pole outer layer is a silicone layer coated on the outer surface of the pole body.

[0030] It should be noted that the pole body is the main structure of the pole, which at least includes a pole shell.

[0031] For example, the pole body at least includes a pole shell, a vacuum arc extinguishing chamber and a conductive rod arranged in the pole shell, and the pole shell is usually also provided with an insulating pull rod installation cavity and an insulating tube installation cavity. During the forming of the pole, firstly, a cavity 10a corresponding to the pole body is formed by other equipment, and a casting material (such as epoxy resin) is injected into the cavity 10a. After the casting material is solidified, demolding is performed to form the pole body. Then, the pole body is installed in the cavity 10a of the mold of the embodiment of the present application, and a spacing space is formed between the outer surface of the pole body and the inner surface of the mold. The shape structure of the spacing space corresponds to the shape structure of the outer layer of the pole. By injecting the casting material into the spacing space, the outer layer of the pole can be formed on the outer surface of the pole body.

[0032] The movable mold 10 and the fixed mold of the mold are separable and closable. When the movable mold 10 and the fixed mold are closed, the two can enclose and form a cavity 10a.

[0033] The cavity 10a is the cavity inside the mold after the mold is closed, and the shape of the cavity 10a matches the shape of the pole. That is, after the pole body of the pole is installed in the cavity 10a, the outer layer of the pole can be formed by injecting casting material into the cavity 10a and waiting for it to cool and demold.

[0034] The outlet terminal installation port 10b is located at the bottom side of the cavity 10a. Therefore, after the pole body is installed in the cavity 10a, on the one hand, the pole body is placed in the cavity 10a in a horizontal direction (i.e., the second direction) instead of in the top-bottom direction. Compared with placing the pole body in the top-bottom direction, the injection height can be greatly reduced. On the other hand, the outlet terminal is located at the bottom of the pole body, so that the structure in the top area of ​​the cavity 10a is relatively simple, and when the fluidity of the casting material gradually deteriorates, the risk of obvious pores at the top of the cavity 10a can be reduced.

[0035] Part of the cavity wall of the cavity 10a is recessed compared to other areas, thereby forming a shed forming groove 10c. After pouring into the cavity 10a, the corresponding position of the shed forming groove 10c will solidify to form a shed structure, thereby making the outer layer of the pole have a shed structure, which can increase the creepage distance of the pole and improve the safety of the pole for operators.

[0036] The exhaust overflow area 10d is the area where the exhaust hole 10e and the overflow groove 10f are located.

[0037] The exhaust overflow area 10d may be provided on only the side of the movable mold 10 close to the fixed mold, or on only the side of the fixed mold close to the movable mold 10, or on both sides of the movable mold 10 and the fixed mold close to each other.

[0038] For example, see Figure 1 and Figure 2 The side where the movable mold 10 and the fixed mold are attached has an exhaust overflow area 10d, and the area corresponding to the exhaust overflow area 10d of the fixed mold and the movable mold 10 is an attached plane. In other words, only the movable mold 10 is formed with exhaust holes 10e and overflow grooves 10f by depression, and the portion of the fixed mold that matches the exhaust overflow area 10d is a plane. Therefore, it is easy to process and manufacture.

[0039] In fact, the side where the movable mold 10 and the fixed mold are attached to each other is the side where the movable mold 10 and the fixed mold jointly form the cavity 10a.

[0040] The exhaust hole 10e of the exhaust overflow area 10d is used to exhaust the air in the cavity 10a during the injection molding process. The exhaust hole 10e and the overflow groove 10f are both located on the top side of the shed forming groove 10c to facilitate air exhaust.

[0041] The dimension of the overflow groove 10f along the first direction is larger than that of the vent hole 10e. In fact, the volume of the overflow groove 10f is larger than that of the vent hole 10e. Therefore, the overflow groove 10f can accommodate more casting material than the vent hole 10e.

[0042] It should be noted that there are some problems with the exhaust method of using only the exhaust hole 10e for exhaust without providing the overflow groove 10f. For example, if the cross section of the exhaust hole 10e is set to be small, the casting material will easily solidify in the exhaust hole 10e. After the casting material solidifies in the exhaust hole 10e, it will be difficult for the small bubbles inside the cavity 10a to be discharged. However, if the cross section of the exhaust hole 10e is set to be large, since the exhaust hole 10e is directly connected to the outside world, a large amount of casting material will be discharged from the exhaust hole 10e, making it difficult to maintain the pressure inside the cavity 10a, and also causing a waste of casting material.

[0043] The mold of the embodiment of the present application can help maintain the pressure inside the cavity 10a and reduce the waste of casting materials through the cooperation of the overflow groove 10f and the exhaust hole 10e. After the casting material is solidified and demoulded, the casting material sheet formed here is very thin and easy to remove from the product surface, which will not significantly affect the surface quality of the product. At the same time, it can prevent the silicone from solidifying too quickly in the entire exhaust channel, and ensure the exhaust effect.

[0044] The arrangement of the exhaust hole 10e can be determined according to actual conditions.

[0045] For example, the entire area of ​​the exhaust hole 10e is located on the side of the overflow groove 10f away from the shed forming groove 10c. For another example, a part of the exhaust hole 10e is located on the side of the overflow groove 10f away from the shed forming groove 10c, and another part of the exhaust hole 10e is located on the side of the overflow groove 10f close to the shed forming groove 10c, that is, the overflow groove 10f is not directly connected to the shed forming groove 10c, but is connected through another part of the exhaust hole 10e.

[0046] The specific shape of the exhaust hole 10e can be set according to actual conditions.

[0047] For example, see Figure 1 and Figure 2 , the extension length of the exhaust hole 10e along the second direction is greater than the extension length along the first direction; wherein the second direction is perpendicular to the first direction and the top and bottom directions respectively. Thus, the extension length of the exhaust hole 10e along the second direction can be increased, so that the extension range of the exhaust hole 10e along the second direction is larger, and more areas of the cavity 10a can be covered, which can further facilitate exhaust.

[0048] Exemplarily, the exhaust hole 10e is a sheet-shaped exhaust channel.

[0049] For another example, the thickness of the exhaust hole 10e is greater than or equal to 1 mm and less than or equal to 2 mm, and the thickness direction of the exhaust hole 10e is the aforementioned first direction.

[0050] It should be noted that the dimension of the overflow groove 10f along the first direction is greater than the dimension of the exhaust hole 10e along the first direction. The dimensions in other directions (such as the second direction and the top and bottom directions) can be set according to actual conditions.

[0051] For example, see Figure 1 and Figure 2 , along the second direction, the extension length of the exhaust hole 10e (see Figure 1 The length of the overflow groove 10f is greater than or equal to the extension length of the overflow groove 10f (see Figure 1 The second direction is perpendicular to the first direction and the top and bottom directions. Thus, by relatively increasing the extension length a of the exhaust hole 10e along the second direction, the coverage of the exhaust hole 10e can be increased, and the exhaust effect can be improved. By relatively reducing the extension length b of the overflow groove 10f along the second direction, the Figure 1 The casting material spreading from the left side to the right side is pressed into the overflow groove 10f in large quantities too early, resulting in the risk of the confluence point being too complicated.

[0052] In the mold of the embodiment of the present application, the fixed mold and the movable mold 10 are enclosed to form a cavity 10a, and the bottom side of the cavity 10a has an outlet terminal installation port 10b, which is used to install the outlet terminal of the pole body, and the cavity 10a matches the shape of the pole. Therefore, during the injection molding process, the pole body can be placed horizontally in the cavity 10a, and the outlet terminal of the pole body is downward. Placing the pole body in this way and injecting silicone will not only avoid the problem of too high injection height and do not require too much pressure, but also make the upper structure shape of the cavity 10a simpler than the lower part, and when the fluidity of the casting material gradually deteriorates, it can also reduce the risk of obvious pores in the upper part of the cavity 10a. In addition, a part of the cavity wall of the cavity 10a is recessed to form an umbrella skirt forming groove 10c, and the umbrella skirt forming groove 10c is used to cast the umbrella skirt structure of the outer layer of the pole. On the side where the movable mold 10 and the fixed mold are attached to each other, at least one of the movable mold 10 and the fixed mold further has an exhaust overflow area 10d, and the exhaust overflow area 10d is located on the top side of the shed forming groove 10c. The exhaust overflow area 10d has an exhaust hole 10e and an overflow groove 10f. At least part of the exhaust hole 10e is connected to the outside and is located on the side of the overflow groove 10f away from the shed forming groove 10c. The overflow groove 10f is connected to the exhaust hole 10e and the shed forming groove 10c respectively. Along the first direction, the size of the overflow groove 10f is larger than the size of the exhaust hole 10e. Therefore, on the one hand, since the exhaust hole 10e connected to the outside is provided on the top side of the shed forming groove 10c, when the casting material gradually spreads from the bottom of the cavity 10a to the top, the air in the cavity 10a can be gradually discharged through the exhaust hole 10e above the cavity 10a, thereby achieving a better exhaust effect. On the other hand, by providing the overflow groove 10f, not only can the exhaust effect of each exhaust hole 10e be maintained, but also, since the overflow groove 10f has a larger size along the first direction, the risk of the casting material solidifying too quickly in the exhaust hole 10e can be reduced, which helps to discharge small bubbles in the cavity 10a, thereby further improving the exhaust effect.

[0053] In one embodiment, please refer to Figure 1 and Figure 2 The number of the shed forming grooves 10c is multiple, and each shed forming groove 10c is arranged at intervals along the second direction. The number of the exhaust overflow area 10d is at least one, and each shed forming groove 10c is located at the bottom side of the exhaust overflow area 10d; wherein the second direction is perpendicular to the first direction and the top and bottom directions, respectively. Thus, the air in each shed forming groove 10c can be easily discharged.

[0054] It should be noted that the number of exhaust overflow areas 10d can be set according to actual conditions.

[0055] For example, there may be only one exhaust overflow area 10d, the exhaust holes 10e and the overflow grooves 10f of the exhaust overflow area 10d extend along the second direction, so that each shed forming groove 10c is located under the coverage of at least one of the exhaust holes 10e and the overflow grooves 10f.

[0056] For another example, there may be a plurality of exhaust overflow areas 10d, and the exhaust overflow areas 10d correspond one to one with the umbrella skirt forming grooves 10c.

[0057] For example, see Figure 1 and Figure 2 The plurality of shed forming grooves 10c include at least two first shed forming grooves 10ca, the plurality of exhaust overflow areas 10d include at least two mutually separated first exhaust overflow areas 10da, and each first shed forming groove 10ca is arranged in one-to-one correspondence with each first exhaust overflow area 10da. Thus, the top of each first shed forming groove 10ca can be respectively provided with an independent exhaust hole 10e and an overflow groove 10f, which can reduce the waste of casting materials.

[0058] It should be noted that, each first umbrella skirt forming groove 10ca is arranged one-to-one with each first exhaust overflow area 10da, which means that an independent first umbrella skirt forming groove 10ca is arranged one-to-one on the top side of each first exhaust overflow area 10da, that is, an exhaust hole 10e and an overflow groove 10f are respectively arranged.

[0059] In one embodiment, please refer to Figure 1 and Figure 2 The plurality of shed-forming grooves 10c include at least two second shed-forming grooves 10cb, and the plurality of exhaust overflow areas 10d include a second exhaust overflow area 10db, which is located at the top side of each second shed-forming groove 10cb and is respectively connected to each second shed-forming groove 10cb. Thus, each second shed-forming groove 10cb can be covered by one second exhaust overflow area 10db, so that the air in each second shed-forming groove 10cb can be discharged.

[0060] Specifically, all the exhaust overflow areas 10d may be the second exhaust overflow areas 10db, and all the shed forming grooves 10c may be the second shed forming grooves 10cb. Thus, only one exhaust overflow area 10d may be provided to cover all the shed forming grooves 10c.

[0061] Of course, only part of the exhaust overflow area 10d can be the second exhaust overflow area 10db, and part of the shed forming groove 10c can be the second shed forming groove 10cb. The arrangement of the exhaust overflow area 10d and the shed forming groove 10c in other parts is different.

[0062] It should be noted that the second exhaust overflow area 10db is respectively connected to each second shed forming groove 10cb, which means that each second shed forming groove 10cb is connected to the exhaust hole 10e and the overflow groove 10f of the second exhaust overflow area 10db.

[0063] In one embodiment, please refer to Figure 1 and Figure 2 The cavity 10a has a first sub-cavity 10aa and a second sub-cavity 10ab spaced apart along the second direction. The first sub-cavity 10aa is used to install the incoming line end of the pole body, and the second sub-cavity 10ab is used to install an end of the pole body away from the incoming line end.

[0064] The multiple shed forming grooves 10c include at least two first shed forming grooves 10ca, the cavity wall of the first sub-cavity 10aa forms each first shed forming groove 10ca, the multiple exhaust overflow areas 10d include at least two mutually separated first exhaust overflow areas 10da, and each first shed forming groove 10ca is arranged in one-to-one correspondence with each first exhaust overflow area 10da.

[0065] The cavity wall of the second sub-cavity 10ab forms second shed forming grooves 10cb, and the first exhaust overflow area 10da and the second exhaust overflow area 10db are separated and arranged along the second direction, thereby facilitating the exhaust of air in the first sub-cavity 10aa and the second sub-cavity 10ab.

[0066] Specifically, the first sub-cavity 10aa and the second sub-cavity 10ab are interconnected. The inlet end of the pole body is installed in the first sub-cavity 10aa, and the inlet end is the top area of ​​the pole body in a normal state of vertical placement. The end of the pole body away from the inlet end is installed in the second sub-cavity 10ab, and the end of the pole body away from the inlet end is the bottom area of ​​the pole body in a normal state of vertical placement.

[0067] The plurality of shed forming grooves 10c include two or more first shed forming grooves 10ca and two or more second shed forming grooves 10cb.

[0068] The plurality of exhaust overflow areas 10d include two or more first exhaust overflow areas 10da and one second exhaust overflow area 10db.

[0069] The first shed forming groove 10ca is formed in the first sub-cavity 10aa, and the first exhaust overflow area 10da is located at the top side of the first sub-cavity 10aa and corresponds to the first shed forming groove 10ca, which can exhaust the air in the first sub-cavity 10aa.

[0070] The second shed forming groove 10cb is formed in the second sub-cavity 10ab, and the second exhaust overflow area 10db is located at the top side of the second sub-cavity 10ab and corresponds to the second shed forming groove 10cb, which can exhaust the air in the second sub-cavity 10ab.

[0071] In one embodiment, please refer to Figure 1 and Figure 2 , along the second direction, each second shed forming groove 10cb is located within the extension range of the exhaust hole 10e of the second exhaust overflow area 10db. That is to say, the exhaust hole 10e of the second exhaust overflow area 10db is long enough along the second direction to cover the top side of each second shed forming groove 10cb, so as to facilitate the exhaust of air in each second shed forming groove 10cb.

[0072] In one embodiment, please refer to Figure 1 and Figure 2 Along the second direction, part of the second shed forming groove 10cb is located outside the extension range of the overflow groove 10f of the second exhaust overflow area 10db, and is located on a side close to the first sub-cavity 10aa.

[0073] That is to say, along the second direction, the extension length of the overflow groove 10f of the second exhaust overflow area 10db is shorter, only part of the second shed forming groove 10cb is located at the bottom of the overflow groove 10f of the second exhaust overflow area 10db, and the other part of the second shed forming groove 10cb is located outside the coverage range of the overflow groove 10f of the second exhaust overflow area 10db, thereby avoiding Figure 1 The casting material spreading from the left side to the right side is pressed into the overflow groove 10f of the second exhaust overflow area 10db too early, resulting in the risk of the merging point being too complicated.

[0074] It should be noted that if the overflow groove 10f of the second exhaust overflow area 10db is extended along the second direction to cover the entire second sub-cavity 10ab or all the second shed forming grooves 10cb, a portion of the casting material in the first sub-cavity 10aa will be pressed into the overflow groove 10f of the second exhaust overflow area 10db in advance, causing the confluence point to become more complicated, affecting the filling quality of the casting material at the confluence point, and easily forming air holes. Through the arrangement of this embodiment, the confluence point of the final casting material can be located at the top of the cavity 10a, which is biased towards the second sub-cavity 10ab, that is, the casting material injected into the first sub-cavity 10aa and the casting material injected into the second sub-cavity 10ab will merge at the top of the second sub-cavity 10ab, which is biased away from the first sub-cavity 10aa.

[0075] In one embodiment, please refer to Figure 1 and Figure 2, along the second direction, the second exhaust overflow area 10db is arranged close to the side of the second sub-chamber 10ab away from the first sub-chamber 10aa. Figure 1 There is a risk that the casting material spreading from the left side to the right side will be pressed into the overflow groove 10f of the second exhaust overflow area 10db in advance.

[0076] In one embodiment, please refer to Figure 1 and Figure 2 , along the second direction, the extension length of the exhaust hole 10e is greater than or equal to the extension length of the overflow groove 10f. The second direction is perpendicular to the first direction and the top and bottom directions respectively. Thus, the exhaust effect can be ensured.

[0077] In one embodiment, please refer to Figure 3 The exhaust overflow area 10d has two exhaust holes 10e, the overflow groove 10f is located between the two exhaust holes 10e, and is connected to the two exhaust holes 10e respectively. The exhaust hole 10e located on the top side of the overflow groove 10f is the first exhaust hole 10ea, which is connected to the outside; the exhaust hole 10e located on the bottom side of the overflow groove 10f is the second exhaust hole 10eb, which is connected to the umbrella skirt forming groove 10c.

[0078] Specifically, the overflow groove 10f is not directly connected to the shed forming groove 10c, but is connected to the shed forming groove 10c through the second exhaust hole 10eb. Thus, the risk of the overflow groove 10f being filled up too quickly by the casting material can be reduced; and after demoulding, the solidified material in the overflow groove 10f will not directly adhere to the outer layer of the pole, which is convenient for cleaning this part of the solidified material.

[0079] It should be noted that the sizes of the first exhaust hole 10ea and the second exhaust hole 10eb can be set according to actual conditions.

[0080] For example, see Figure 1 and Figure 2 , along the top-bottom direction, the extension length of the first vent hole 10ea is greater than the extension length of the second vent hole 10eb. That is, along the top-bottom direction, the first vent hole 10ea is longer, while the second vent hole 10eb is shorter. Thus, it is possible to prevent the casting material from solidifying too quickly in the second vent hole 10eb.

[0081] In one embodiment, please refer to Figure 1 and Figure 2The cavity 10a has a first sub-cavity 10aa, a second sub-cavity 10ab and a third sub-cavity 10ac. The first sub-cavity 10aa and the second sub-cavity 10ab are spaced apart along the second direction. The third sub-cavity 10ac is located at the bottom side of the first sub-cavity 10aa and the second sub-cavity 10ab. The first sub-cavity 10aa is used to install the incoming line end of the pole body, the second sub-cavity 10ab is used to install the end of the pole body away from the incoming line end, and the third sub-cavity 10ac is used to install the outgoing line end of the pole body; wherein the second direction is perpendicular to the first direction and the top and bottom directions respectively.

[0082] The mold has at least one first injection port 10g and multiple second injection ports 10h, the first injection port 10g is connected to the first sub-cavity 10aa, a part of the second injection ports 10h is connected to the third sub-cavity 10ac, and another part of the second injection ports 10h is connected to the second sub-cavity 10ab, and the number of the second injection ports 10h is greater than the number of the first injection ports 10g.

[0083] Specifically, the first sub-cavity 10aa, the second sub-cavity 10ab and the third sub-cavity 10ac are all connected to each other. The outlet end of the pole body is installed in the third sub-cavity 10ac.

[0084] The casting material is injected into the first sub-cavity 10aa through the first injection port 10g, and the casting material is injected into the second sub-cavity 10ab and the third sub-cavity 10ac through the second injection port 10h.

[0085] It should be noted that the number of second injection ports 10h is greater than that of first injection ports 10g. This is because the second sub-cavity 10ab requires more casting material than the first sub-cavity 10aa. By providing more second injection ports 10h, the injection quality of the casting material can be improved so that the rising speed of the casting material in the first sub-cavity 10aa and the second sub-cavity 10ab can be synchronized as much as possible.

[0086] Specifically, the number of the second injection ports 10h is greater than the number of the first injection ports 10g, and the difference between the two is less than or equal to 2. For example, the number of the first injection ports is 2, and the number of the second injection ports is 3. The injection ports are arranged in the above manner, so that the confluence point can be located as much as possible at the upper end of the second sub-cavity 10ab and away from the position of the first sub-cavity 10aa. There is no umbrella skirt forming groove at this position of the second sub-cavity 10ab, which will not increase the complexity of the confluence point and is conducive to reducing the risk of forming pores.

[0087] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in a specific embodiment", or "exemplary" etc. means 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 application. In the present application, the schematic representation of the above terms does not necessarily refer 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 application and the features of different embodiments or examples without contradiction.

[0088] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A mold, characterized in that: The mold is used to form the pole outer layer, which is a component of the pole. The pole at least includes a pole body and the pole outer layer, and the pole outer layer is coated on the outer surface of the pole body. The mold includes: Moving model; A fixed mold, wherein the fixed mold and the movable mold are detachably connected along a first direction, and the fixed mold and the movable mold enclose a cavity, the bottom side of the cavity has an outlet terminal installation opening, the outlet terminal installation opening is used to install the outlet terminal of the pole body, and the cavity matches the shape of the pole; A part of the cavity wall of the mold cavity is recessed to form an shed forming groove, and the shed forming groove is used for casting and molding the shed structure of the outer layer of the pole; On the side where the movable mold and the fixed mold are attached to each other, at least one of the movable mold and the fixed mold further has an exhaust overflow area, and the exhaust overflow area is located on the top side of the shed forming groove; The exhaust overflow area has an exhaust hole and an overflow groove, at least a portion of the exhaust hole is located on a side of the overflow groove away from the umbrella skirt forming groove and is connected to the outside, and the overflow groove is respectively connected to the exhaust hole and the umbrella skirt forming groove; along the first direction, the size of the overflow groove is larger than the size of the exhaust hole.

2. The mold according to claim 1, characterized in that: There are multiple shed-forming grooves, each of which is spaced apart along the second direction; there is at least one exhaust overflow area, each of which is located at the bottom side of the exhaust overflow area; wherein the second direction is respectively perpendicular to the first direction and the top and bottom directions.

3. The mold according to claim 2, characterized in that: The multiple shed forming grooves include at least two first shed forming grooves, the multiple exhaust overflow areas include at least two first exhaust overflow areas separated from each other, and each of the first shed forming grooves is arranged in one-to-one correspondence with each of the first exhaust overflow areas.

4. The mold according to claim 2, characterized in that: The multiple shed forming grooves include at least two second shed forming grooves, the multiple exhaust overflow areas include a second exhaust overflow area, the second exhaust overflow area is located above each of the second shed forming grooves, and is respectively connected to each of the second shed forming grooves.

5. The mold according to claim 4, characterized in that: The mold cavity comprises a first sub-cavity and a second sub-cavity spaced apart along the second direction, the first sub-cavity being used to install the incoming line end of the pole body, and the second sub-cavity being used to install an end of the pole body away from the incoming line end; The plurality of shed-forming grooves include at least two first shed-forming grooves, the cavity wall of the first sub-cavity forms each of the first shed-forming grooves, the plurality of exhaust overflow areas include at least two mutually separated first exhaust overflow areas, and each of the first shed-forming grooves is arranged in one-to-one correspondence with each of the first exhaust overflow areas; The cavity wall of the second sub-cavity forms the second shed forming grooves, and the first exhaust overflow area and the second exhaust overflow area are separated and arranged along the second direction.

6. The mold according to claim 5, characterized in that: Along the second direction, each of the second shed forming grooves is located within an extension range of the exhaust hole of the second exhaust overflow area.

7. The mold according to claim 6, characterized in that: Along the second direction, part of the second shed forming groove is located outside the extension range of the overflow groove of the second exhaust overflow area and is located on a side close to the first sub-cavity; and / or, Along the second direction, the second exhaust overflow area is arranged close to a side of the second sub-cavity facing away from the first sub-cavity.

8. The mold according to claim 1, characterized in that: Along the second direction, the extension length of the exhaust hole is greater than or equal to the extension length of the overflow groove; wherein the second direction is perpendicular to the first direction and the top and bottom directions respectively.

9. The mold according to any one of claims 1 to 8, characterized in that: The exhaust overflow area has two sections of exhaust holes, the overflow groove is located between the two sections of exhaust holes and is respectively connected to the two sections of exhaust holes, the exhaust hole located on the top side of the overflow groove is the first exhaust hole and is connected to the outside; the exhaust hole located on the bottom side of the overflow groove is the second exhaust hole and is connected to the groove formed by the umbrella skirt.

10. The mold according to claim 9, characterized in that: Along the top-bottom direction, an extension length of the first exhaust hole is greater than an extension length of the second exhaust hole.

11. The mold according to any one of claims 1 to 8, characterized in that: The mold cavity comprises a first sub-cavity, a second sub-cavity and a third sub-cavity, wherein the first sub-cavity and the second sub-cavity are arranged at intervals along the second direction, the third sub-cavity is located at the bottom side of the first sub-cavity and the second sub-cavity, the first sub-cavity is used to install the incoming line end of the pole body, the second sub-cavity is used to install an end of the pole body away from the incoming line end, and the third sub-cavity is used to install the outgoing line end of the pole body; wherein the second direction is perpendicular to the first direction and the top and bottom directions respectively; The mold has at least one first injection port and multiple second injection ports, the first injection port is connected to the first sub-cavity, a part of the second injection ports is connected to the third sub-cavity, and another part of the second injection ports is connected to the second sub-cavity, and the number of the second injection ports is greater than the number of the first injection ports.

12. The mold according to any one of claims 1 to 8, characterized in that: The extension length of the exhaust hole along the second direction is greater than the extension length along the first direction; wherein the second direction is perpendicular to the first direction and the top and bottom directions respectively; and / or, The side where the movable mold is bonded to the fixed mold has the exhaust overflow area, and the area of ​​the fixed mold and the movable mold corresponding to the exhaust overflow area is a bonding plane.

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