A mold

Abstract

An embodiment of the present application provides a mold. The mold includes a movable mold, a fixed mold and a demolding structure. The fixed mold and the movable mold are detachably connected, and the fixed mold and the movable mold enclose a cavity. The demolding structure includes a demolding body, a first traction component and a second traction component. The demolding body is arranged between the movable mold and the fixed mold to fix the molded injection part; the first traction component is arranged on the movable mold, and the second traction component is arranged on the fixed mold. When the movable mold moves, the first traction component contacts the demolding body to drive the demolding body to separate from the fixed mold through movement; when the second traction component contacts the demolding body, the second traction component restricts the movement of the demolding body to separate the demolding body from the movable mold. The mold demolding of the embodiment of the present application is convenient.

Description

Technical Field

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

[0002] In related art, the electromagnetic combination transformer in a pole-mounted circuit breaker typically includes an enclosure, a conductive sleeve disposed within the enclosure, a voltage grading network, a current sensor, and a voltage sensor. The current sensor includes a coil and a current lead, with the coil surrounding the conductive sleeve. The voltage grading network includes two voltage grading surfaces, one between the coil and either end of the conductive sleeve, to prevent interference with the coil from the high voltage at both ends of the conductive sleeve.

[0003] In the prior art, the sealed poles of electromagnetic combination transformers are primarily produced through a pressure molding process. Components such as the conductive sleeve, voltage-equalizing grid, current sensor, and voltage sensor are installed in a mold through a die head. Then, using the APG process (Automatic Pressure Gel Forming), epoxy resin is injected into the mold for sealing. However, the molds used in the prior art are difficult to remove, making it difficult to remove the molded, injected parts, and suffer from a low level of integration. Summary of the Invention

[0004] In view of this, the main purpose of the embodiments of the present application is to provide a mold that is easy to demold.

[0005] To achieve the above objectives, the technical solution of the embodiment of the present application is implemented as follows:

[0006] An embodiment of the present application provides a mold for forming a plastic injection mold, comprising:

[0007] Moving model;

[0008] A fixed mold, wherein the fixed mold and the movable mold are detachably connected and enclosed by the fixed mold and the movable mold to form a mold cavity;

[0009] A demoulding structure, comprising a demoulding body, a first pulling assembly, and a second pulling assembly. The demoulding body is disposed between the movable mold and the fixed mold to fix the molded plastic injection part. The first pulling assembly is disposed on the movable mold, and the second pulling assembly is disposed on the fixed mold.

[0010] When the movable mold moves, the first traction component contacts the demoulding body to drive the demoulding body to separate from the fixed mold through movement; when the second traction component contacts the demoulding body, the second traction component restricts the movement of the demoulding body to separate the demoulding body from the movable mold.

[0011] In one embodiment, the demolding body includes a support rod, the first traction assembly includes a demolding movable rod, the first end of the demolding movable rod is arranged on the movable mold, and the second end of the demolding movable rod is detachably connected to the support rod to drive the demolding body to separate from the fixed mold by contacting the support rod.

[0012] In one embodiment, the second end includes a first bent end, and the first bent end hooks the support rod from a side of the support rod facing away from the movable mold to drive the demoulding body to separate from the fixed mold.

[0013] In one embodiment, the demoulding body includes a support rod, the second pulling assembly includes a demoulding static pull rod, and the third end of the demoulding static pull rod is disposed on the fixed mold; the mold has a closed mold state in which the movable mold and the fixed mold are in contact with each other, and an open mold state in which the movable mold and the fixed mold are separated;

[0014] When the mold is in the mold closing state, the fourth end of the demoulding static pull rod is separated from the demoulding body; when the movable mold moves so that the first traction assembly drives the demoulding body to separate from the fixed mold, the fourth end of the demoulding static pull rod contacts the support rod to limit the movement of the demoulding body.

[0015] In one embodiment, the fourth end includes a second bent end, and the second bent end is hooked on the support rod from a side of the support rod facing away from the fixed mold to limit the movement of the demoulding body.

[0016] In one embodiment, the first pulling assembly includes a demoulding movable rod, a first end of the demoulding movable rod being disposed on the movable mold, a second end of the demoulding movable rod being detachably connected to the support rod, and the second end including a first curved end, the first curved end hooking the support rod from a side of the support rod facing away from the movable mold to drive the demoulding body to separate from the fixed mold;

[0017] The demolding movable pull rod includes a first middle portion located between the first end and the second end; the demolding static pull rod includes a second middle portion located between the third end and the fourth end; one of the first middle portion and the second middle portion is located on the top side of the support rod, and the other is located on the bottom side of the support rod.

[0018] In one embodiment, the demolding movable pull rod and the demolding static pull rod are staggered along a first direction; wherein the separation direction of the movable mold and the fixed mold is a second direction, and the first direction is perpendicular to the second direction and the top and bottom directions respectively.

[0019] In one embodiment, the demoulding structure includes a plurality of the first traction assemblies and a plurality of the second traction assemblies, and the demoulding body includes a demoulding frame and a plurality of support rods, and the support rods are arranged on the demoulding frame;

[0020] The first pulling assembly drives the demoulding body to separate from the fixed mold by contacting the support rods in a one-to-one correspondence;

[0021] The second traction assembly is in one-to-one contact with the support rods to limit the movement of the demoulding body.

[0022] In one embodiment, the first pulling component is movably connected to the movable mold, and when the second pulling component contacts the demoulding body, the first pulling component moves relative to the movable mold to separate from the demoulding body.

[0023] In one embodiment, the first pulling assembly is rotatably disposed on the movable mold, and the first pulling assembly is separated from the demoulding body by rotating relative to the movable mold.

[0024] In one embodiment, the demoulding body includes a demoulding frame having a receiving cavity, the injection molded part is a sensor housing, the sensor housing is a component of an electromagnetic combination transformer, and the receiving cavity is used to receive the electromagnetic combination transformer;

[0025] The electromagnetic combination transformer includes a current sensor and a conductive sleeve, the conductive sleeve is inserted into the coil of the current sensor, and the demoulding body also includes a first fixed die head arranged in the accommodating cavity, and the first fixed die head is used to fix the conductive sleeve; and / or, the electromagnetic combination transformer includes a voltage sensor, and the demoulding body also includes a second fixed die head arranged in the accommodating cavity, and the second fixed die head is used to fix the voltage sensor.

[0026] In one embodiment, the demoulding body further includes at least one partition plate, the accommodating cavity includes a plurality of sub-accommodating cavities, each of the sub-accommodating cavities is used to accommodate the electromagnetic combination mutual inductor respectively, and a partition plate is provided between adjacent sub-accommodating cavities.

[0027] In one embodiment, the mold cavity includes a plurality of mutually separated sub-cavities and at least one slot, each of the sub-cavities is used to form the injection molded part, the sub-cavity matches the shape of the electromagnetic combination transformer, and there is a slot between two adjacent sub-cavities, and the slot is used to install the partition plate.

[0028] In one embodiment, the movable mold and the fixed mold further enclose a mounting groove, and the demolding frame can be detachably mounted in the mounting groove; at least one of the movable mold and the fixed mold further has an overflow glue accommodating cavity, and the overflow glue accommodating cavity is located on the top side of the mounting groove.

[0029] An embodiment of the present application provides a mold for molding a plastic injection molded part. The mold's fixed mold and movable mold are detachably connected, and the fixed mold and movable mold enclose a mold cavity. A demolding body of the demolding structure is disposed between the movable mold and the fixed mold to secure the molded plastic injection molded part. A first pulling assembly is disposed on the movable mold, and a second pulling assembly is disposed on the fixed mold. When the movable mold moves, the first pulling assembly contacts the demolding body, thereby driving the demolding body away from the fixed mold through movement. When the second pulling assembly contacts the demolding body, the second pulling assembly restricts the movement of the demolding body, thereby separating the demolding body from the movable mold. Thus, on the one hand, the first pulling assembly is driven to move by the movable mold, causing the first pulling assembly to exert a pulling effect, thereby separating the demolding body from the fixed mold. On the other hand, as the movable mold continues to move, the first pulling assembly continues to pull the demolding body until the second pulling assembly contacts the demolding body. The second pulling assembly can then restrict the demolding body from further movement, thereby separating the demolding body from the movable mold. As a result, as the movable mold and the fixed mold are separated, the demoulding body can be separated from the movable mold and the fixed mold respectively. The demoulding body is capable of fixing the molded injection part, thereby enabling the injection part to be separated from the movable mold and the fixed mold. This greatly improves the convenience of demoulding, facilitates the removal of the injection part, and eliminates the need for manual disassembly, resulting in a high degree of mold integration. As can be seen from this, by demoulding through the demoulding structure, the mold can quickly complete the demoulding operation, reducing the waste of raw materials and the risk of workers' operation, and improving production efficiency and yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of a mold according to an embodiment of the present application;

[0031] Figure 2 for Figure 1 Schematic diagram of the structure of the middle mold from another perspective;

[0032] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0033] Figure 4 for Figure 1 Schematic diagram of part of the structure of the middle mold;

[0034] Figure 5 for Figure 4 The structural diagram of the middle mold after some structures are hidden;

[0035] Figure 6 for Figure 5Schematic diagram of the structure of the middle mold from another perspective;

[0036] Figure 7 for Figure 4 Schematic diagram of the coordination relationship between the middle demoulding structure and the electromagnetic combination transformer.

[0037] Description of Reference Numerals

[0038] 10. Moving mold; 10a. Cavity; 10b. Sub-cavity; 10c. Card slot; 10d. Mounting slot; 10e. Overflow glue receiving cavity; 20. Fixed mold; 30. Demolding structure; 31. Demolding body; 311. Support rod; 312. Demolding frame; 312a. Receiving cavity; 312b. Sub-receiving cavity; 313. First fixed die head; 314. Second fixed die head; 315. Partition plate; 32. First traction assembly; 321. Demolding movable pull rod; 322. First end; 323. Second end; 324. First middle portion; 33. Second traction assembly; 331. Demolding static pull rod; 332. Third end; 333. Fourth end; 334. Second middle portion; 40. Electromagnetic combined mutual inductor; 41. Current sensor; 411. Coil; 42. Conductive sleeve; 43. Voltage sensor. DETAILED DESCRIPTION

[0039] In this application, the orientation or position relationship of "first direction", "second direction" and "top and bottom direction" is based on the attached Figure 1 It should be understood that these directional terms are only used to facilitate the description of this application and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting this application.

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. The following embodiments are only used to more clearly illustrate the technical solutions of the present application and are therefore only used as examples and are not intended to limit the scope of protection of the present application. 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.

[0041] In the description of the embodiments of this application, the technical terms "first," "second," "third," etc. are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is two or more, unless otherwise specifically defined.

[0042] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] An embodiment of the present application provides a mold, see Figures 1 to 4 The mold is used to form a plastic injection part, and the mold includes a movable mold 10, a fixed mold 20 and a demoulding structure 30.

[0044] The fixed mold 20 and the movable mold 10 are detachably connected, and the fixed mold 20 and the movable mold 10 enclose a mold cavity 10 a.

[0045] The demolding structure 30 includes a demolding body 31, a first pulling assembly 32, and a second pulling assembly 33. The demolding body 31 is disposed between the movable mold 10 and the fixed mold 20 to secure the molded plastic injection molded part. The first pulling assembly 32 is disposed on the movable mold 10, and the second pulling assembly 33 is disposed on the fixed mold 20.

[0046] When the movable mold 10 moves, the first pulling assembly 32 contacts the demolding body 31, thereby driving the demolding body 31 away from the fixed mold 20. When the second pulling assembly 33 contacts the demolding body 31, the second pulling assembly 33 restricts the movement of the demolding body 31, thereby separating the demolding body 31 from the movable mold 10.

[0047] Among them, the mold can be any mold that can be used to seal and form a glue-injected part by injecting glue. For example, the glue-injected part is a sensor housing, which is a component of the electromagnetic combination transformer 40 of the pole-mounted circuit breaker. By installing other parts of the electromagnetic combination transformer 40, such as the current sensor 41, the conductive sleeve 42, the voltage sensor 43 and the voltage equalizing network into the cavity 10a, the casting material is injected into the gap between it and the cavity wall of the cavity 10a, and after it solidifies, it becomes the sensor housing. For ease of description, the embodiment of the present application is described as an example in which the glue-injected part is the sensor housing of the electromagnetic combination transformer 40.

[0048] Specifically, the mold can not only form the sensor housing by casting and curing the injection molded part, but also enable the sensor housing to be assembled with other structures of the electromagnetic combination mutual inductor 40 .

[0049] The movable mold 10 and the fixed mold 20 of the mold are separable and closable. When the movable mold 10 and the fixed mold 20 are closed, the two can enclose and form a cavity 10a.

[0050] The mold cavity 10a is the hollow space inside the mold after the mold is closed. The shape of the mold cavity 10a matches the outer shape of the electromagnetic combination transformer 40. In other words, after the other components of the electromagnetic combination transformer 40 are installed in the mold cavity 10a, the casting material is injected into the mold cavity 10a, and after cooling and demolding, the resulting molded part is the sensor housing.

[0051] The demoulding structure 30 is a structure that can facilitate the ejection of the injection mold relative to the movable mold 10 and the fixed mold 20 .

[0052] After pouring the casting material into the cavity 10 a and solidifying it, the formed glue-injected part is connected to the demoulding body 31 .

[0053] Both the first pulling assembly 32 and the second pulling assembly 33 can apply a force to the demolding body 31. Specifically, the first pulling assembly 32 can move with the movement of the movable mold 10. Thus, when the movable mold 10 moves away from the fixed mold 20, it can drive the first pulling assembly 32 to move, thereby driving the demolding body 31 to separate from the fixed mold 20.

[0054] As the movable mold 10 continues to move, the first traction component 32 drives the demoulding body 31 to the second traction component 33 and contacts the demoulding body 31. The second traction component 33 can prevent the demoulding body 31 from continuing to move with the first traction component 32, but it cannot prevent the movable mold 10 from continuing to move, so that the demoulding body 31 can be separated from the movable mold 10, thereby realizing the separation of the injection mold relative to the movable mold 10 and the fixed mold 20.

[0055] It should be noted that, in some embodiments, when the movable mold 10 and the fixed mold 20 are in the mold closing state, the first pulling component 32 is in contact with the demoulding body 31, that is, along the direction of separation of the movable mold 10 and the fixed mold 20 (i.e. Figure 1 (The second direction in FIG. 2 ) The length of the first pulling assembly 32 is the same as the width of the movable mold 10. This allows the opposite ends of the first pulling assembly 32 to connect to the movable mold 10 and the demolding body 31, respectively. When the movable mold 10 begins to move, the first pulling assembly 32 drives the demolding body 31 to move.

[0056] Of course, in other embodiments, when the movable mold 10 and the fixed mold 20 are in the mold closing state, the first pulling component 32 and the demoulding body 31 are separated, that is, along the direction of separation of the movable mold 10 and the fixed mold 20 (i.e. Figure 1 (In the second direction of the moving mold 10, the length of the first pulling assembly 32 is greater than the width of the movable mold 10. One end of the first pulling assembly 32 is connected to the movable mold 10, and the other end extends to the side of the stripper body 31 facing away from the movable mold 10, and is separated from the stripper body 31 by a predetermined distance. Therefore, the first pulling assembly 32 will only drive the stripper body 31 to move after the movable mold 10 moves for a period of time.

[0057] It should be noted that when the second traction component 33 contacts the demoulding body 31 to limit the movement of the demoulding body 31, the first traction component 32 will be separated from the demoulding body 31, so that the second traction component 33 cannot limit the continued movement of the first traction component 32 and the movable mold 10, thereby enabling the demoulding body 31 and the injection part to be separated relative to the movable mold 10.

[0058] It should be noted that the first pulling assembly 32 can be separated from the demoulding body 31 in any manner. It can be separated manually by an operator, or by a driving structure driving the first pulling assembly 32 to separate from the demoulding body 31, or by other methods to achieve automatic separation of the two.

[0059] In the mold of the embodiment of the present application, the fixed mold 20 and the movable mold 10 are detachably connected, and the fixed mold 20 and the movable mold 10 enclose a mold cavity 10a. The demolding body 31 of the demolding structure 30 is arranged between the movable mold 10 and the fixed mold 20 to fix the injection molded part after molding. The first traction component 32 is arranged on the movable mold 10, and the second traction component 33 is arranged on the fixed mold 20. When the movable mold 10 moves, the first traction component 32 contacts the demolding body 31 to drive the demolding body 31 to separate from the fixed mold 20 through movement. When the second traction component 33 contacts the demolding body 31, the second traction component 33 restricts the movement of the demolding body 31 to separate the demolding body 31 from the movable mold 10. Therefore, on the one hand, the first traction component 32 is driven to move by the movable mold 10, so that the first traction component 32 has a traction effect, and the demolding body 31 can be separated from the fixed mold 20. On the other hand, as the movable mold 10 continues to move, the first pulling assembly 32 continues to pull the demolding body 31 until the second pulling assembly 33 contacts the demolding body 31. The second pulling assembly 33 can restrict the demolding body 31 from further movement, thereby separating the demolding body 31 from the movable mold 10. Therefore, as the movable mold 10 and the fixed mold 20 separate, the demolding body 31 can be separated from the movable mold 10 and the fixed mold 20 respectively. The demolding body 31 can fix the molded injection molded part, thus separating the injection molded part from the movable mold 10 and the fixed mold 20. This greatly improves the convenience of demolding, facilitates the removal of the injection molded part, and eliminates the need for manual disassembly, resulting in a high degree of mold integration.

[0060] In one embodiment, please refer to Figure 2 、 Figure 3 and Figure 7The demolding body 31 includes a support rod 311, and the first pulling assembly 32 includes a demolding movable rod 321. The first end 322 of the demolding movable rod 321 is disposed on the movable mold 10, and the second end 323 of the demolding movable rod 321 is detachably connected to the support rod 311, so as to drive the demolding body 31 to separate from the fixed mold 20 through contact with the support rod 311. Thus, the demolding movable rod 321 interacts with the support rod 311 to drive the demolding body 31 and the injection mold to separate from the fixed mold 20.

[0061] Specifically, the first end 322 and the second end 323 are two opposite ends of the demoulding movable tie rod 321 along the extension direction. The first end 322 is used to connect with the movable mold 10, and the second end 323 is used to contact with the support rod 311.

[0062] It should be noted that the specific connection method between the demoulding movable rod 321 and the movable mold 10 is not limited, for example, the demoulding movable rod 321 and the movable mold 10 are detachably connected, or rotatably connected.

[0063] The specific matching mode between the second end 323 and the support rod 311 is determined according to actual conditions.

[0064] For example, see Figure 2 、 Figure 3 and Figure 7 The second end 323 includes a first curved end, which hooks the support rod 311 from the side of the support rod 311 away from the movable mold 10 to drive the demolding body 31 to separate from the fixed mold 20. In this way, the first pulling assembly 32 can easily pull the demolding body 31.

[0065] Specifically, the first bent end is a bent end with an arc, the first end 322 of the demolding movable pull rod 321 is connected to the movable mold 10, and the second end 323 extends toward the side close to the fixed mold 20 and passes over the support rod 311 to hook the support rod 311 from the side of the support rod 311 away from the movable mold 10, thereby driving the demolding body 31 to move.

[0066] In one embodiment, please refer to Figure 2 、 Figure 3 and Figure 7 The demolding body 31 includes a support rod 311, the second traction assembly 33 includes a demolding static pull rod 331, and the third end 332 of the demolding static pull rod 331 is set on the fixed mold 20; the mold has a closed mold state in which the movable mold 10 and the fixed mold 20 are in contact with each other, and an open mold state in which the movable mold 10 and the fixed mold 20 are separated.

[0067] When the mold is in the closed state, the fourth end 333 of the demolding static tie rod 331 is separated from the demolding body 31. When the movable mold 10 moves, causing the first pulling assembly 32 to pull the demolding body 31 away from the fixed mold 20, the fourth end 333 of the demolding static tie rod 331 contacts the support rod 311, restricting the movement of the demolding body 31. Thus, the demolding static tie rod 331 applies a blocking force to the support rod 311, allowing the demolding body 31 to continue to move with the movable mold 10.

[0068] Specifically, the third end 332 and the fourth end 333 are two opposite ends of the demoulding static tie rod 331 along the extension direction. The third end 332 is used to connect with the fixed mold 20, and the fourth end 333 is used to contact the support rod 311.

[0069] The specific connection method between the demoulding static pull rod 331 and the fixed mold 20 is not limited, for example, the demoulding static pull rod 331 and the fixed mold 20 are detachably connected, or fixedly connected.

[0070] It should be noted that when the mold is in the closed state, the fourth end 333 of the demolding static pull rod 331 needs to be separated from the demolding body 31, so that when the first traction component 32 has not yet driven the demolding body 31 to separate from the fixed mold 20, the fourth end 333 of the demolding static pull rod 331 can be avoided from restricting the movement of the demolding body 31.

[0071] In addition, the specific matching method between the fourth end 333 and the support rod 311 is determined according to actual conditions.

[0072] For example, see Figure 2 、 Figure 3 and Figure 7 The fourth end 333 includes a second curved end, which hooks the support rod 311 from the side of the support rod 311 away from the fixed mold 20 to limit the movement of the demolding body 31. In this way, the second traction assembly 33 can easily limit the continued movement of the demolding body 31.

[0073] Specifically, the second bent end is a bent end with an arc, the third end 332 of the demolding static pull rod 331 is connected to the fixed mold 20, and the fourth end 333 extends toward the side close to the movable mold 10 and passes over the support rod 311 to hook the support rod 311 from the side of the support rod 311 away from the fixed mold 20, thereby limiting the continued movement of the demolding body 31.

[0074] In one embodiment, please refer to Figure 2 、 Figure 3 and Figure 7The first traction assembly 32 includes a demoulding movable rod 321, a first end 322 of the demoulding movable rod 321 is set on the movable mold 10, and the second end 323 of the demoulding movable rod 321 is detachably connected to the support rod 311. The second end 323 includes a first bent end, and the first bent end hooks the support rod 311 from the side of the support rod 311 away from the movable mold 10 to drive the demoulding body 31 to separate from the fixed mold 20.

[0075] The demolding movable tie rod 321 includes a first intermediate portion 324 located between a first end 322 and a second end 323. The demolding static tie rod 331 includes a second intermediate portion 334 located between a third end 332 and a fourth end 333. One of the first intermediate portion 324 and the second intermediate portion 334 is located on the top side of the support rod 311, while the other is located on the bottom side of the support rod 311. This reduces the risk of the support rod 311 being pulled out of both the first and second curved ends, thereby reducing the possibility of mold problems.

[0076] It should be noted that the end (second end 323) of the demolding rod 321 that contacts the support rod 311 is curved, and the end (fourth end 333) of the demolding rod 331 that contacts the support rod 311 is also curved. Furthermore, one of the demolding rod 321 and the demolding rod 331 extends from the top to hook onto the support rod 311, while the other extends from the bottom to hook onto the support rod 311. This prevents the possibility of both curved ends of the support rod 311 being dislodged when the demolding rod 321 and the demolding rod 331 are on the same side. This significantly improves the reliability of mold demolding.

[0077] It can be understood that the first end 322 , the first middle portion 324 and the second end 323 are structures of different regions of the demolding movable pull rod 321 , which can be integrally formed or separately formed.

[0078] The third end 332 , the second middle portion 334 and the fourth end 333 are structures of different regions of the demoulding static tie rod 331 , which may be integrally formed or separately formed.

[0079] Furthermore, the demoulding movable pull rod 321 may extend from the top side to hook the support rod 311, and the demoulding static pull rod 331 may extend from the bottom side to hook the support rod 311. Alternatively, the demoulding movable pull rod 321 may extend from the bottom side to hook the support rod 311, and the demoulding static pull rod 331 may extend from the top side to hook the support rod 311.

[0080] In one embodiment, please refer to Figure 2 、 Figure 3 and Figure 7The dynamic demolding tie rod 321 and the static demolding tie rod 331 are staggered along a first direction. The separation direction of the movable mold 10 and the fixed mold 20 is a second direction, and the first direction is perpendicular to the second direction and the top-bottom direction, respectively. In other words, the dynamic demolding tie rod 321 and the static demolding tie rod 331 are not located on the same vertical plane, but are relatively staggered. This reduces the risk of interference between the dynamic demolding tie rod 321 and the static demolding tie rod 331, thereby improving the reliability of the mold.

[0081] In one embodiment, please refer to Figures 4 to 7 The demoulding structure 30 includes a plurality of first traction assemblies 32 and a plurality of second traction assemblies 33 . The demoulding body 31 includes a demoulding frame 312 and a plurality of support rods 311 . The support rods 311 are arranged on the demoulding frame 312 .

[0082] The first pulling assembly 32 contacts the support rods 311 in a one-to-one correspondence to drive the demoulding body 31 to separate from the fixed mold 20 .

[0083] The second pulling assembly 33 contacts the support rods 311 in a one-to-one correspondence to restrict the movement of the demoulding body 31. This greatly improves the stability of the first pulling assembly 32 in driving the demoulding body 31 and the reliability of the second pulling assembly 33 in restricting the movement of the demoulding body 31.

[0084] It is understandable that the number of support rods 311 , first traction assemblies 32 and second traction assemblies 33 are the same, and the three correspond to each other. Each support rod 311 corresponds to one first traction assembly 32 and one second traction assembly 33 .

[0085] For example, the demolding structure 30 includes four first pulling assemblies 32 and four second pulling assemblies 33. The demolding body 31 includes a demolding frame 312 and four support rods 311. Two support rods 311 are respectively provided on opposite sides of the demolding frame 312 along the first direction. The support rods 311 on the same side of the demolding frame 312 are spaced apart along the top-bottom direction. The first pulling assemblies 32 and the second pulling assemblies 33 are provided on each support rod 311 in a one-to-one correspondence.

[0086] In one embodiment, please refer to Figure 2 and Figure 3 The first pulling assembly 32 is movably connected to the movable mold 10. When the second pulling assembly 33 contacts the demolding body 31, the first pulling assembly 32 moves relative to the movable mold 10 to separate from the demolding body 31. This prevents the first pulling assembly 32 from further driving the demolding body 31, and prevents the second pulling assembly 33 from hindering the continued movement of the movable mold 10.

[0087] It should be noted that the specific manner in which the first traction assembly 32 is movably connected to the movable mold 10 can be set according to actual conditions.

[0088] For example, see Figure 2 and Figure 3 The first pulling assembly 32 is rotatably disposed on the movable mold 10, and the first pulling assembly 32 is separated from the demoulding body 31 by rotating relative to the movable mold 10. Thus, the convenience of separating the first pulling assembly 32 from the demoulding body 31 can be improved.

[0089] In one embodiment, please refer to Figure 7 The demoulding body 31 includes a demoulding frame 312 having a receiving cavity 312 a . The injection molded part is a sensor housing. The sensor housing is a component of the electromagnetic combination mutual inductor 40 . The receiving cavity 312 a is used to receive the electromagnetic combination mutual inductor 40 .

[0090] The electromagnetic combination transformer 40 includes a current sensor 41 and a conductive sleeve 42. The conductive sleeve 42 is inserted into the coil 411 of the current sensor 41. The demolding body 31 also includes a first fixed die head 313 disposed within the accommodating cavity 312a. The first fixed die head 313 is used to fix the conductive sleeve 42. This effectively secures the current sensor 41 and the conductive sleeve 42 within the demolding body 31 and the cavity 10a, improving the stability of the mold casting and demolding processes.

[0091] Specifically, the first fixed die head 313 is installed in any manner within the accommodating cavity 312 a .

[0092] For example, a portion of the cavity wall of the accommodating cavity 312a is recessed to form a first installation space, and the first fixed die head 313 is installed in the first installation space, thereby improving the installation stability between the first fixed die head 313 and the demoulding frame 312.

[0093] There is no limitation on the fixed connection method between the first fixed die head 313 and the conductive sleeve 42 .

[0094] For example, a first fixed die head 313 is respectively provided at both ends of the conductive sleeve 42 along the extension direction, and the end of the first fixed die head 313 extends into the conductive sleeve 42 to be clamped and fixed with the conductive sleeve 42 .

[0095] In one embodiment, please refer to Figure 7 The demoulding body 31 includes a demoulding frame 312 having a receiving cavity 312 a . The injection molded part is a sensor housing. The sensor housing is a component of the electromagnetic combination mutual inductor 40 . The receiving cavity 312 a is used to receive the electromagnetic combination mutual inductor 40 .

[0096] The electromagnetic combined mutual inductor 40 includes a voltage sensor 43 . The demoulding body 31 further includes a second fixed die head 314 disposed in the accommodating cavity 312 a . The second fixed die head 314 is used to fix the voltage sensor 43 .

[0097] Specifically, the second fixed die head 314 is installed in any manner within the accommodating cavity 312 a .

[0098] For example, a portion of the cavity wall of the accommodating cavity 312a is recessed to form a second installation space, and the second fixed die head 314 is installed in the second installation space, thereby improving the installation stability between the second fixed die head 314 and the voltage sensor 43.

[0099] The fixing connection method between the second fixed die head 314 and the voltage sensor 43 is not limited.

[0100] For example, the second fixed die head 314 has an interface connected to the voltage sensor 43 , and an end portion of the voltage sensor 43 extends into the interface.

[0101] In one embodiment, please refer to Figure 7 The demolding body 31 further includes at least one partition plate 315. The accommodating cavity 312a includes multiple sub-accommodating cavities 312b, each of which is used to accommodate an electromagnetic combination mutual inductor 40. A partition plate 315 is provided between each adjacent sub-accommodating cavity 312b. This allows multiple injection molding parts to be molded simultaneously using the mold, improving molding efficiency.

[0102] Specifically, each sub-accommodation cavity 312b can accommodate a formed electromagnetic combination mutual inductor 40, and adjacent sub-accommodation cavities 312b are separated by partition plates 315, thereby preventing adjacent formed electromagnetic combination mutual inductors 40 from being connected together.

[0103] In one embodiment, please refer to Figures 4 to 6 The mold cavity 10a includes multiple mutually separated sub-cavities 10b and at least one slot 10c. Each sub-cavity 10b is used to mold a plastic injection part. The sub-cavity 10b matches the shape of the electromagnetic combination mutual inductor 40. There is a slot 10c between two adjacent sub-cavities 10b. The slot 10c is used to install the partition plate 315.

[0104] Specifically, each sub-cavity 10 b matches the shape of an electromagnetic combination mutual inductor 40 , and adjacent sub-cavities 10 b are separated by a partition plate 315 .

[0105] At the same time, by providing the card slot 10 c , the partition plate 315 can be easily assembled and disassembled, and the installation stability of the partition plate 315 can be improved.

[0106] In addition, the mold design is adopted to integrate multiple key components. The mold integration is improved through the design of the cavity 10a of the movable mold 10 and the fixed mold and the matching design of the slot 10c, making the mold structure more compact and reducing space occupancy.

[0107] In one embodiment, please refer to Figure 1 、 Figure 5 and Figure 6 The movable mold 10 and the fixed mold 20 further enclose a mounting groove 10d, into which the demoulding frame 312 is detachably mounted. At least one of the movable mold 10 and the fixed mold 20 further comprises a glue overflow receiving cavity 10e, which is located at the top side of the mounting groove 10d.

[0108] Specifically, the demoulding frame 312 can be detachably installed in the installation groove 10d, which can facilitate the disassembly and assembly of the demoulding frame 312 and improve the stability of the demoulding frame 312 during the casting process.

[0109] Only the movable mold 10 may have the overflowing glue accommodating cavity 10e, only the fixed mold 20 may have the overflowing glue accommodating cavity 10e, or both the movable mold 10 and the fixed mold 20 may have the overflowing glue accommodating cavity 10e.

[0110] The overflow glue receiving cavity 10e is located at the top side of the installation groove 10d, thereby facilitating that the casting material can overflow into the overflow glue receiving cavity 10e after the cavity 10a is fully filled with the casting material.

[0111] In a specific embodiment, the movable mold 10 includes a movable mold 10 back plate and a movable mold 10 mold plate, which is installed on the movable mold 10 back plate. The fixed mold 20 includes a fixed mold 20 back plate and a fixed mold 20 mold plate, which is installed on the fixed mold 20 back plate. The fixed mold 20 mold plate and the movable mold 10 mold plate enclose a mold cavity 10a. The first traction assembly 32 is arranged on the movable mold 10 back plate, and the second traction assembly 33 is arranged on the fixed mold 20 back plate.

[0112] In the description of this application, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in a specific embodiment", 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 application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine different embodiments or examples described in this application and features of different embodiments or examples without contradiction.

[0113] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. A mold, characterized in that: The mold is used to form a plastic injection part, including: Moving model; A fixed mold, wherein the fixed mold and the movable mold are detachably connected and enclosed by the fixed mold and the movable mold to form a mold cavity; A demoulding structure, comprising a demoulding body, a first pulling assembly, and a second pulling assembly. The demoulding body is disposed between the movable mold and the fixed mold to fix the molded plastic injection part. The first pulling assembly is disposed on the movable mold, and the second pulling assembly is disposed on the fixed mold. When the movable mold moves, the first pulling component contacts the demoulding body to drive the demoulding body away from the fixed mold through movement; when the second pulling component contacts the demoulding body, the second pulling component restricts the movement of the demoulding body to enable the demoulding body to separate from the movable mold; The demoulding body includes a demoulding frame having an accommodating cavity, the injection-molded part is a sensor housing, the sensor housing is a component of an electromagnetic combination mutual inductor, and the accommodating cavity is used to accommodate the electromagnetic combination mutual inductor; The demoulding body further includes at least one partition plate, the accommodating cavity includes a plurality of sub-accommodating cavities, each of the sub-accommodating cavities is used to accommodate the electromagnetic combination mutual inductor, and a partition plate is provided between adjacent sub-accommodating cavities; The demoulding body includes a support rod, the second pulling assembly includes a demoulding static pull rod, the third end of the demoulding static pull rod is arranged on the fixed mold; the fourth end of the demoulding static pull rod includes a second curved end, and the second curved end is hooked on the support rod from the side of the support rod away from the fixed mold to limit the movement of the demoulding body; The first pulling assembly includes a demoulding movable rod, wherein a first end of the demoulding movable rod is disposed on the movable mold, a second end of the demoulding movable rod is detachably connected to the support rod, and the second end includes a first bent end, and the first bent end hooks the support rod from a side of the support rod facing away from the movable mold to drive the demoulding body to separate from the fixed mold; The demoulding movable pull rod and the demoulding static pull rod are staggered along a first direction; wherein the separation direction of the movable mold and the fixed mold is a second direction, and the first direction is perpendicular to the second direction and the top and bottom directions respectively; The demolding movable pull rod and the demolding static pull rod are respectively located on opposite sides of the support rod along the top and bottom directions, and the second end extends to one side of the demolding static pull rod along the first direction, and the fourth end extends to one side of the demolding movable pull rod along the first direction.

2. The mold according to claim 1, characterized in that The demoulding body includes a support rod, and the first traction assembly includes a demoulding movable rod. The first end of the demoulding movable rod is arranged on the movable mold, and the second end of the demoulding movable rod is detachably connected to the support rod to drive the demoulding body to separate from the fixed mold by contacting the support rod.

3. The mold according to claim 2, characterized in that The second end includes a first bent end, and the first bent end hooks the support rod from a side of the support rod away from the movable mold to drive the demoulding body to separate from the fixed mold.

4. The mold according to claim 1, characterized in that The mold has a mold closing state in which the movable mold and the fixed mold are in contact with each other, and a mold opening state in which the movable mold and the fixed mold are separated from each other; When the mold is in the mold closing state, the fourth end of the demoulding static pull rod is separated from the demoulding body; when the movable mold moves so that the first traction assembly drives the demoulding body to separate from the fixed mold, the fourth end of the demoulding static pull rod contacts the support rod to limit the movement of the demoulding body.

5. The mold according to claim 4, characterized in that The demolding movable pull rod includes a first middle portion located between the first end and the second end; the demolding static pull rod includes a second middle portion located between the third end and the fourth end; one of the first middle portion and the second middle portion is located on the top side of the support rod, and the other is located on the bottom side of the support rod.

6. The mold according to claim 1, characterized in that The demoulding structure includes a plurality of the first traction assemblies and a plurality of the second traction assemblies, and the demoulding body includes a demoulding frame and a plurality of support rods, wherein the support rods are arranged on the demoulding frame; The first pulling assembly drives the demoulding body to separate from the fixed mold by contacting the support rods in a one-to-one correspondence; The second traction assembly is in one-to-one contact with the support rods to limit the movement of the demoulding body.

7. The mold according to any one of claims 1 to 6, characterized in that: The first pulling component is movably connected to the movable mold. When the second pulling component contacts the demoulding body, the first pulling component moves relative to the movable mold to separate from the demoulding body.

8. The mold according to claim 7, characterized in that The first pulling assembly is rotatably disposed on the movable mold, and the first pulling assembly is separated from the demoulding body by rotating relative to the movable mold.

9. The mold according to any one of claims 1 to 6, characterized in that: The electromagnetic combined mutual inductor includes a current sensor and a conductive sleeve, wherein the conductive sleeve is inserted into the coil of the current sensor, and the demoulding body further includes a first fixed die head disposed in the accommodating cavity, wherein the first fixed die head is used to fix the conductive sleeve; and / or, The electromagnetic combined mutual inductor includes a voltage sensor, and the demoulding body further includes a second fixed die head arranged in the accommodating cavity, and the second fixed die head is used to fix the voltage sensor.

10. The mold according to claim 9, characterized in that The mold cavity includes multiple mutually separated sub-cavities and at least one slot, each sub-cavity is used to form the injection molded part, the sub-cavity matches the shape of the electromagnetic combination transformer, and there is a slot between two adjacent sub-cavities, and the slot is used to install the partition plate.

11. The mold according to claim 9, characterized in that The movable mold and the fixed mold also enclose a mounting groove, and the demoulding frame can be detachably installed in the mounting groove; at least one of the movable mold and the fixed mold also has an overflow glue accommodating cavity, and the overflow glue accommodating cavity is located on the top side of the mounting groove.

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