Long-acting durable iron core plastic coating mold

By designing lifting and clamping components with inclined groove and pulley transmission structures, the problems of long demolding time and easy mold damage in traditional iron core plastic coating molds are solved, achieving efficient and precise iron core demolding and long mold life.

CN224210385UActive Publication Date: 2026-05-08TIANJIN MAISHENGTE ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN MAISHENGTE ELECTRONICS CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional iron-core plastic-coated molds suffer from problems such as long demolding time, easy damage to the mold, and reduced transmission accuracy, which affect production efficiency and mold life.

Method used

The lifting assembly, which adopts a sloping groove and pulley drive structure, combined with a multi-station synchronous lifting block design, achieves stable and efficient lifting action through electric push rod drive, and reduces friction loss through ceramic pulleys and lubrication layer; the clamping assembly adopts a double slot and push block structure to achieve uniform clamping force and prevent mold displacement.

Benefits of technology

This method enables smooth and precise demolding of the iron core, extends the service life of the mold, improves production efficiency and mold durability, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a long-acting durable type iron core plastic coating mould, which relates to the technical field of iron core plastic coating production equipment, and comprises an upper module group, a shell is arranged at the bottom of the upper module group, lower module groups are arranged in the shell at equal intervals, iron core main bodies are arranged in the lower module groups, a jacking assembly is arranged in the shell, and the jacking assembly is arranged in the shell. A clamping assembly is arranged in the shell, and the jacking assembly comprises sliding grooves symmetrically formed in the bottom of the inner wall of the shell. By optimizing the design of a jacking assembly and adopting a chute and pulley transmission structure, stable and efficient jacking action is achieved, specifically, the jacking assembly converts horizontal driving force into vertical jacking force through cooperation of a moving block chute and a pulley, and it is guaranteed that iron core demolding is stable and accurate in combination with the design of a multi-station synchronous jacking block; the pulley is made of ceramic and is provided with the lubricating layer, so that friction loss is remarkably reduced, the service life of the die is prolonged, and the production requirements of high efficiency, high precision and long service life are met.
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Description

Technical Field

[0001] This utility model relates to the technical field of iron core plastic coating production equipment, and in particular to a long-lasting and durable iron core plastic coating mold. Background Technology

[0002] A core-coating mold is a special mold used to coat a metal core (usually a motor core, transformer core, or other electromagnetic component) with plastic insulating material through an injection molding process.

[0003] In the production and application of plastic-coated iron core molds, the precise positioning and efficient demolding of the iron core are key factors affecting product quality and production efficiency. Traditional lifting structures mostly rely on manual operation or single power drive, which cannot achieve synchronous and stable lifting of iron cores in multiple stations. This results in a long demolding process and is prone to damage to the iron core or mold due to uneven force. Furthermore, traditional lifting components mostly use rigid contact transmission, which is prone to wear and tear after long-term use, leading to a decrease in transmission accuracy, affecting the service life of the mold, and increasing maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a long-lasting and durable iron core plastic coating mold to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a long-lasting and durable iron core plastic-coated mold, comprising an upper module group, a shell at the bottom of the upper module group, a lower module group equidistantly arranged inside the shell, an iron core body inside the lower module group, a lifting component inside the shell, and a clamping component inside the shell;

[0006] The lifting assembly includes symmetrically formed grooves on the bottom of the inner wall of the outer shell. A movable block is slidably connected inside the groove. An inclined groove is symmetrically formed on the outer wall of the movable block. A pulley is slidably connected inside the inclined groove. A connecting plate is rotatably connected to the inner wall of the pulley via a bearing. A lifting plate is fixedly connected to the top of the connecting plate. Coincident grooves are equidistantly formed on the inner wall of the outer shell. A top block is slidably connected inside the snap-fit ​​groove. The bottom of the top block is fixedly connected to the top of the lifting plate. A driving component is provided at the bottom of the inner wall of the outer shell.

[0007] Preferably, the driving component includes a mounting bracket fixedly connected to the bottom of the inner wall of the housing, and a first electric push rod is connected to the top of the mounting bracket by screws. The output end of the first electric push rod is fixedly connected to the outer wall of the moving block.

[0008] Preferably, the clamping assembly includes a first slot symmetrically formed on the inner wall of the outer shell, and a second slot formed on the outer wall of the lower module group. The inner walls of the first slot and the second slot are simultaneously engaged with a locking block. The outer walls of the two locking blocks are each provided with a limiting groove. A push block is slidably connected between the two locking blocks, and the outer wall of the push block is slidably connected to the inner wall of the limiting groove.

[0009] Preferably, the inner wall of the outer casing is rotatably connected to a second electric push rod by screws, and the output end of the second electric push rod is fixedly connected to the outer wall of the push block.

[0010] Preferably, a support frame is fixedly connected to the outer wall of the housing, and a cylinder is fixedly connected to the top of the support frame. The output end of the cylinder penetrates the support frame and is fixedly connected to the upper module assembly.

[0011] Preferably, the inclination angle of the inclined groove is 30 degrees or 60 degrees, and the length of the inclined groove is adapted to the stroke of the moving block.

[0012] Preferably, the pulley is made of ceramic material, and the contact surface between the pulley and the inclined groove is provided with a lubricating layer to reduce the friction when the pulley slides in the inclined groove.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by optimizing the design of the lifting component and adopting a sloping groove and pulley transmission structure, a stable and efficient lifting action is achieved. Specifically, the lifting component converts the horizontal driving force into a vertical lifting force through the cooperation of the moving block sloping groove and the pulley. Combined with the multi-station synchronous lifting block design, it ensures that the iron core is demolded smoothly and accurately. In addition, the pulley is made of ceramic material and has a lubrication layer, which significantly reduces friction loss, extends the service life of the mold, and meets the production requirements of high efficiency, high precision, and long service life.

[0015] 2. In this utility model, by installing the clamping assembly, the clamping block is simultaneously embedded in the first and second clamping slots. By sliding the push block in the limiting slot, the clamping block is pushed to expand or contract to both sides, thereby clamping or releasing the lower module group. The double clamping slots combined with the clamping block structure form multi-directional constraints to prevent the lower module group from shifting during the plastic coating process. The sliding design of the push block and the limiting slot ensures that the clamping force is evenly distributed, avoiding excessive local stress that could damage the mold. At the same time, it facilitates the disassembly of the lower module group. Attached Figure Description

[0016] Figure 1 This utility model provides a perspective view of the main structure of a long-lasting and durable iron core plastic-coated mold;

[0017] Figure 2 This utility model provides a cross-sectional view of the lifting component structure of a long-lasting and durable iron core plastic-coated mold;

[0018] Figure 3 This utility model provides a schematic diagram of the internal structure of the lifting component of a long-lasting and durable iron core plastic-coated mold;

[0019] Figure 4 A schematic diagram of the outer shell structure of a long-lasting and durable iron core plastic-coated mold is provided for this utility model;

[0020] Figure 5 This utility model provides a schematic diagram of the clamping assembly structure for a long-lasting and durable iron core plastic-coated mold;

[0021] Figure 6 This utility model presents a schematic diagram of a pulley structure for a long-lasting and durable iron core plastic-coated mold.

[0022] Legend:

[0023] 1. Upper module assembly; 2. Outer shell; 3. Lower module assembly; 31. Iron core body; 4. Lifting assembly; 401. Slide groove; 402. Moving block; 403. Inclined groove; 4031. Pulley; 404. Connecting plate; 405. Lifting plate; 406. Snap-fit ​​groove; 407. Top block; 408. Mounting bracket; 409. First electric push rod; 5. Clamping assembly; 501. First slot; 502. Second slot; 503. Locking block; 504. Limiting groove; 505. Push block; 506. Second electric push rod; 6. Support frame; 7. Cylinder. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Please see Figures 1-6 As shown, this utility model provides a technical solution: a long-lasting and durable iron core plastic coating mold, including an upper module group 1, a shell 2 at the bottom of the upper module group 1, a lower module group 3 equidistantly arranged inside the shell 2, an iron core body 31 inside the lower module group 3, a lifting component 4 inside the shell 2, and a clamping component 5 inside the shell 2.

[0027] The lifting assembly 4 includes symmetrically formed grooves 401 on the bottom of the inner wall of the outer shell 2. A movable block 402 is slidably connected inside the groove 401. An inclined groove 403 is symmetrically formed on the outer wall of the movable block 402. A pulley 4031 is slidably connected inside the inclined groove 403. A connecting plate 404 is rotatably connected to the inner wall of the pulley 4031 via a bearing. A lifting plate 405 is fixedly connected to the top of the connecting plate 404. A snap-fit ​​groove 406 is equidistantly formed on the inner wall of the outer shell 2. A top block 407 is slidably connected inside the snap-fit ​​groove 406. The bottom of the top block 407 is fixedly connected to the top of the lifting plate 405. A driving component is provided at the bottom of the inner wall of the outer shell 2.

[0028] In use, the driving component pushes the moving block 402 to slide in the slide groove 401. The inclined groove 403 cooperates with the pulley 4031 to convert the horizontal movement of the moving block 402 into the vertical movement of the lifting plate 405, which in turn drives the top block 407 to rise and fall in the locking groove 406, thereby lifting or resetting the lower module group 3 or the iron core body 31. The lifting component 4 achieves stable lifting and lowering through mechanical transmission, avoiding wear or jamming caused by directly driving the top block 407.

[0029] More specific solutions, such as Figure 2 as well as Figure 3 The driving component includes a mounting bracket 408 fixedly connected to the bottom of the inner wall of the housing 2. The top of the mounting bracket 408 is connected to a first electric push rod 409 by screws. The output end of the first electric push rod 409 is fixedly connected to the outer wall of the moving block 402.

[0030] In use, the first electric push rod 409 is fixed to the bottom of the housing 2 by the mounting bracket 408. After being powered on, the output end pushes the moving block 402 to move horizontally, driving the lifting assembly 4 to run. The first electric push rod 409 provides constant driving force, has high control precision, and can realize the automation and stepless adjustment of the lifting process, saving manpower and improving demolding efficiency.

[0031] In a more preferred embodiment, such as Figure 4 as well as Figure 5 The clamping assembly 5 includes a first slot 501 symmetrically opened on the inner wall of the outer shell 2, and a second slot 502 opened on the outer wall of the lower module group 3. The inner walls of the first slot 501 and the second slot 502 are simultaneously engaged with a locking block 503. The outer walls of the two locking blocks 503 are each provided with a limiting groove 504. A push block 505 is slidably connected between the two locking blocks 503. The outer wall of the push block 505 is slidably connected to the inner wall of the limiting groove 504.

[0032] In use, the locking block 503 is simultaneously embedded in the first locking slot 501 and the second locking slot 502. By sliding the push block 505 in the limiting groove 504, the locking block 503 is pushed to expand or contract to both sides to achieve clamping or release of the lower module group 3. The double locking slots, together with the locking block 503 structure, form multi-directional constraints to prevent the lower module group 3 from shifting during the plastic coating process. The sliding design of the push block 505 and the limiting groove 504 makes the clamping force evenly distributed, avoiding excessive local stress that could damage the mold. At the same time, it facilitates the installation and disassembly of the lower module group 3.

[0033] In a more preferred embodiment, such as Figure 5 The inner wall of the outer casing 2 is rotatably connected to a second electric push rod 506 by screws, and the output end of the second electric push rod 506 is fixedly connected to the outer wall of the push block 505.

[0034] In use, the second electric push rod 506 is fixed to the inner wall of the housing 2, and the output end directly pushes the push block 505 to move, controlling the clamping or loosening action of the clamping block 503. The electric drive clamping process can precisely control the clamping force, adapt to the plastic coating requirements of different specifications of iron cores, reduce mechanical wear, and improve the reliability and service life of the clamping mechanism.

[0035] In a more preferred embodiment, such as Figure 1 as well as Figure 2 A support frame 6 is fixedly connected to the outer wall of the outer shell 2. A cylinder 7 is fixedly connected to the top of the support frame 6. The output end of the cylinder 7 penetrates the support frame 6 and is fixedly connected to the upper module group 1.

[0036] In use, the cylinder 7 is fixed above the outer shell 2 by the support frame 6. The output end drives the upper module group 1 to move up and down, and closes or separates with the lower module group 3 to complete the opening and closing action of the plastic coating mold. The cylinder 7 provides a long stroke and high thrust linear motion to ensure that the upper module group 1 and the lower module group 3 are quickly and accurately aligned.

[0037] In a more preferred embodiment, such as Figure 2 as well as Figure 3 The inclined angle of the sloping groove 403 is 30 degrees or 60 degrees, and the length of the sloping groove 403 is adapted to the stroke of the moving block 402.

[0038] In use, the inclined groove 403 adopts a 30-degree or 60-degree inclination angle to match the stroke of the moving block 402. The lifting height of the lifting plate 405 is controlled by the geometric transmission ratio. While ensuring the lifting force, the stroke distance of the moving block 402 can be reduced, and the response speed can be improved. The stroke matching design prevents the pulley 4031 from interfering with or having no stroke with the inclined groove 403, thus extending the service life of mechanical components.

[0039] In a more preferred embodiment, such as Figure 1The pulley 4031 is made of ceramic material, and the contact surface between the pulley 4031 and the inclined groove 403 is provided with a lubricating layer to reduce the friction when the pulley 4031 slides in the inclined groove 403.

[0040] In use, the ceramic pulley 4031 is connected to the connecting plate 404 through the bearing. When it slides in the inclined groove 403, the lubrication layer reduces the friction of the contact surface. The ceramic material has strong wear resistance and high temperature resistance, which reduces wear and loss during long-term use.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A long-lasting and durable iron core plastic-coated mold, comprising an upper module assembly (1), wherein a shell (2) is provided at the bottom of the upper module assembly (1), and a lower module assembly (3) is provided at equal intervals inside the shell (2), wherein an iron core body (31) is provided inside the lower module assembly (3), characterized in that: The housing (2) is provided with a lifting assembly (4) inside, and a clamping assembly (5) is provided inside the housing (2); The lifting assembly (4) includes symmetrically opened grooves (401) on the bottom of the inner wall of the outer shell (2). A movable block (402) is slidably connected inside the groove (401). An inclined groove (403) is symmetrically opened on the outer wall of the movable block (402). A pulley (4031) is slidably connected inside the inclined groove (403). A connecting plate (404) is rotatably connected to the inner wall of the pulley (4031) through a bearing. A lifting plate (405) is fixedly connected to the top of the connecting plate (404). A snap-fit ​​groove (406) is equidistantly opened on the inner wall of the outer shell (2). A top block (407) is slidably connected inside the snap-fit ​​groove (406). The bottom of the top block (407) is fixedly connected to the top of the lifting plate (405). A driving component is provided at the bottom of the inner wall of the outer shell (2).

2. The long-lasting and durable iron core plastic-coating mold according to claim 1, characterized in that: The driving component includes a mounting bracket (408) fixedly connected to the bottom of the inner wall of the housing (2). The top of the mounting bracket (408) is connected to a first electric push rod (409) by screws. The output end of the first electric push rod (409) is fixedly connected to the outer wall of the moving block (402).

3. The long-lasting and durable iron core plastic-coated mold according to claim 1, characterized in that: The clamping assembly (5) includes a first slot (501) symmetrically opened on the inner wall of the outer shell (2), and a second slot (502) opened on the outer wall of the lower module group (3). The inner walls of the first slot (501) and the second slot (502) are simultaneously engaged with a locking block (503). The outer walls of the two locking blocks (503) are each provided with a limiting groove (504). A push block (505) is slidably connected between the two locking blocks (503). The outer wall of the push block (505) is slidably connected to the inner wall of the limiting groove (504).

4. The long-lasting and durable iron core plastic-coated mold according to claim 3, characterized in that: The inner wall of the outer casing (2) is rotatably connected to a second electric push rod (506) by screws, and the output end of the second electric push rod (506) is fixedly connected to the outer wall of the push block (505).

5. The long-lasting and durable iron core plastic-coating mold according to claim 1, characterized in that: The outer wall of the outer shell (2) is fixedly connected to a support frame (6), and a cylinder (7) is fixedly connected to the top of the support frame (6). The output end of the cylinder (7) penetrates the support frame (6) and is fixedly connected to the upper module group (1).

6. The long-lasting and durable iron core plastic-coated mold according to claim 1, characterized in that: The inclined angle of the sloping groove (403) is 30 degrees or 60 degrees, and the length of the sloping groove (403) is adapted to the stroke of the moving block (402).

7. The long-lasting and durable iron core plastic-coated mold according to claim 1, characterized in that: The pulley (4031) is made of ceramic material, and a lubricating layer is provided on the contact surface between the pulley (4031) and the inclined groove (403) to reduce the friction when the pulley (4031) slides in the inclined groove (403).