Iron core rubber coating injection mold
By introducing a slider seat and positioning groove structure into the iron core coating injection mold, the problems of iron core positioning and demolding were solved, improving production efficiency and product quality, reducing costs, and achieving high-precision production.
Patent Information
- Application Number
- CN202520137620.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing injection molds for rubber coating of iron cores suffer from problems such as misalignment and concentricity between the inner hole and outer ring of the stator and rotor iron cores, leading to material jamming, damage, low production efficiency, and high costs. Furthermore, the appearance of the iron core is easily damaged during demolding, making it difficult to meet the needs of modern industry for fast, efficient, and high-precision production.
The system employs an upper mold, lower mold, slider seat, fixing components, and inclined clamping block structure. Through the sliding of the slider seat and the cooperation of the positioning groove, it achieves precise positioning and stable demolding of the iron core, avoids misalignment and tearing, and improves the overall performance of the mold.
It enables rapid core loading and stable demolding, reduces mold wear, improves production efficiency and product quality, lowers production costs, and meets the high-precision production requirements of modern industry.
Smart Images
Figure CN223763662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of iron core injection molding technology, specifically to an iron core rubber-coated injection mold. Background Technology
[0002] In the application of injection molds for rubber coating of stator and rotor iron cores, the iron core height is generally varied due to various reasons. Molds are typically made using a middle plate structure, which facilitates the processing and replacement of the middle plate height to match the required iron core height. However, stator and rotor iron cores have an inner hole and an outer ring. The inner hole needs to be positioned, and the outer ring needs to be sealed with rubber. Misalignment and concentricity deviation during the stacking of finished products are difficult to avoid in the hardware mold. Furthermore, the mold must be sealed with rubber, and large clearances cannot be made. This directly affects the existing molds, which commonly suffer from problems such as material jamming, pressure damage, low production efficiency, and easy wear and tear on the middle plate and inserts. At the same time, after the mold is filled with rubber, the side of the outer ring of the iron core is more tightly attached to the sealed side of the middle plate, resulting in defects in demolding and scratches on the appearance of the iron core hardware. This makes it difficult to further improve the quality and precision of the product, and the production cost is high, with more scrap and a longer production cycle, making it difficult to meet the fast, efficient, and high-precision production requirements of modern industry. Summary of the Invention
[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an iron core rubber-coated injection mold to solve various problems caused by misalignment and concentricity deviation of the inner hole and outer ring of the iron core hardware laminated product, and improve the overall performance of the mold.
[0004] This utility model is achieved through the following technical solution:
[0005] A rubber-coated iron core injection mold includes an upper mold, a lower mold, a first slider seat, a second slider seat, a first fixing component, and a second fixing component. The lower mold is provided with a mold core and a lower inner mold. The first slider seat and the second slider seat are respectively located on both sides of the mold core. The first slider seat and the second slider seat are respectively provided with a first positioning groove and a second positioning groove on the side of the first slider seat and the side of the second slider seat closest to the mold core.
[0006] The first slider seat and the second slider seat are slidably connected to the upper end face of the lower inner mold, and the first fixing component and the second fixing component are respectively used to fix the first slider seat and the second slider seat to the lower inner mold;
[0007] When the first slider seat and the second slider seat approach each other, the first positioning groove and the second positioning groove engage to position the iron core placed on the mold core.
[0008] The mold further includes a first inclined block and a second inclined block. The first slider seat and the second slider seat are respectively provided with a first inclined surface and a second inclined surface on the side away from the mold core. A third inclined surface and a fourth inclined surface are respectively provided on one side of the first inclined block and one side of the second inclined block. The third inclined surface abuts against and slides with the first inclined surface, and the fourth inclined surface abuts against and slides with the second inclined surface. The other side of the first inclined block and the other side of the second inclined block abut against the inner wall of the lower inner mold.
[0009] The angle between the first inclined surface and the second inclined surface and the upper end face of the lower inner mold is less than 90°.
[0010] The first fixing component and the second fixing component are screws, respectively.
[0011] The first slider seat and the second slider seat are symmetrically arranged about the mold core.
[0012] The inner sides of the first positioning groove and the second positioning groove are coated with an anti-wear coating.
[0013] The beneficial effects of this utility model are:
[0014] This utility model discloses an injection mold for coating iron cores. It comprises a first slider seat, a second slider seat, a first fixing component, a second fixing component, a first positioning groove, and a second positioning groove. The first and second slider seats form the main structure of the mold. This main structure has the characteristic of correcting the shape of the iron core, such as misalignment of stacked iron core plates or excessively large external dimensions. The original middle plate is divided into two slider seats with a distance between them. After the iron core is easily and quickly inserted, the first and second positioning grooves surround the mold core without damaging the sealing surface. After coating is completed, the sliders slide open first, and then the product ejects without contacting the slider seats, thus avoiding damage to the iron core's appearance and enabling smooth demolding. Furthermore, it exhibits stable performance under continuous high-speed production. Attached Figure Description
[0015] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the lower inner mold.
[0018] Figure Labels
[0019] Upper mold--101, lower mold--102, mold core--103, lower inner mold--104, first slider seat--105, second slider seat--106, first fixing component--107, second fixing component--108, first positioning groove--109, second positioning groove--110, first inclined clamping block--111, second inclined clamping block--112. Detailed Implementation
[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0023] In the application of injection molds for rubber coating of stator and rotor iron cores, the iron core height is generally varied due to various reasons. Molds are typically made using a middle plate structure, which facilitates the processing and replacement of the middle plate height to match the required iron core height. However, stator and rotor iron cores have an inner hole and an outer ring. The inner hole needs to be positioned, and the outer ring needs to be sealed with rubber. Misalignment and concentricity deviation during the stacking of finished products are difficult to avoid in the hardware mold. Furthermore, the mold must be sealed with rubber, and large clearances cannot be made. This directly affects the existing molds, which commonly suffer from problems such as material jamming, pressure damage, low production efficiency, and easy wear and tear on the middle plate and inserts. At the same time, after the mold is filled with rubber, the side of the outer ring of the iron core is more tightly attached to the sealed side of the middle plate, resulting in defects in demolding and scratches on the appearance of the iron core hardware. This makes it difficult to further improve the quality and precision of the product, and the production cost is high, with more scrap and a longer production cycle, making it difficult to meet the fast, efficient, and high-precision production requirements of modern industry.
[0024] To address the aforementioned problems, this embodiment discloses a rubber-coated injection mold for iron cores, the structure of which is as follows: Figure 1 and Figure 2 As shown, the mold includes an upper mold 101, a lower mold 102, a first slider seat 105, a second slider seat 106, a first fixing component 107, and a second fixing component 108. The lower mold 102 is provided with a mold core 103 and a lower inner mold 104. The first slider seat 105 and the second slider seat 106 are respectively located on both sides of the mold core 103. The first slider seat 105 and the second slider seat 106 are respectively provided with a first positioning groove 109 and a second positioning groove 110 on the side of the first slider seat 105 and the second slider seat 106 near the mold core 103.
[0025] The first slider seat 105 and the second slider seat 106 are slidably connected to the upper end face of the lower inner mold 104, and the first fixing component 107 and the second fixing component 108 are respectively used to fix the first slider seat 105 and the second slider seat 106 to the lower inner mold 104.
[0026] When the first slider seat 105 and the second slider seat 106 approach each other, the first positioning groove 109 and the second positioning groove 110 engage to position the iron core placed on the mold core 103.
[0027] Specifically, this embodiment of a core-coating injection mold includes a first slider seat 105, a second slider seat 106, a first fixing component 107, a second fixing component 108, a first positioning groove 109, and a second positioning groove 110. The first slider seat 105 and the second slider seat 106 form the main structure of the mold. This main structure has the characteristic of correcting the shape of the core, such as misalignment of the core laminations or excessive size. It divides the original middle plate into two slider seats that slide apart by a distance. Preferably, the inner sides of the first positioning groove 109 and the second positioning groove 110 are coated with an anti-wear coating. After the core is easily and quickly installed, the first positioning groove 109 and the second positioning groove 110 surround the mold core 103 without damaging the sealing surface. After the coating is completed, the slider is slid apart first, and then the product does not contact the slider seat when ejecting, thus avoiding damage to the appearance of the core and enabling smooth demolding. It also has the advantages of stable performance under continuous high-speed production. Preferably, the first slider seat 105 and the second slider seat 106 are symmetrically arranged about the mold core 103.
[0028] Furthermore, the mold also includes a first inclined block 111 and a second inclined block 112. The first slider seat 105 and the second slider seat 106 are respectively provided with a first inclined surface and a second inclined surface on the side away from the mold core 103. A third inclined surface and a fourth inclined surface are respectively provided on one side of the first inclined block 111 and one side of the second inclined block 112. The third inclined surface abuts against and slides with the first inclined surface, and the fourth inclined surface abuts against and slides with the second inclined surface. The other side of the first inclined block 111 and the other side of the second inclined block 112 abut against the inner wall of the lower inner mold 104.
[0029] In this embodiment, the stepless sliding adjustment of the first slider seat 105 and the second slider seat 106 is achieved through the cooperation of the first inclined surface, the second inclined surface, the third inclined surface and the fourth inclined surface; in addition, the inclination angle between the first inclined surface and the second inclined surface and the upper end surface of the lower inner mold 104 is less than 90°, so that one side of the first inclined clamping block 111 and the second inclined clamping block 112 can slide up and down above the upper end surface of the upper inner mold.
[0030] Specifically, the first fixing component 107 and the second fixing component 108 are screws, and the first slider seat 105 and the second slider seat 106 are respectively provided with corresponding through holes. The screws pass through the through holes and are screwed into the upper inner mold to fix the first slider seat 105 and the second slider seat 106.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. An encapsulated injection mold for an iron core, comprising an upper mold and a lower mold, the lower mold being provided with a mold core and a lower inner mold, characterized in that, The mold further comprises a first slider seat, a second slider seat, a first fixing assembly and a second fixing assembly, the first slider seat and the second slider seat are respectively located at two sides of the mold core, and the first slider seat and the second slider seat are respectively provided with a first positioning groove and a second positioning groove on a side close to the mold core; The first slider seat and the second slider seat are respectively in sliding connection with an upper end surface of the lower inner mold, and the first fixing assembly and the second fixing assembly are respectively used for fixing the first slider seat and the second slider seat to the lower inner mold; When the first slider seat and the second slider seat are close to each other, the first positioning groove and the second positioning groove are combined to position the iron core placed on the mold core.
2. The encapsulated core injection mold of claim 1, wherein, The mold further comprises a first inclined block and a second inclined block, a first inclined surface and a second inclined surface are respectively provided on a side of the first slider seat and the second slider seat away from the mold core, a third inclined surface and a fourth inclined surface are respectively provided on a side of the first inclined block and the second inclined block, the third inclined surface is in abutment and sliding connection with the first inclined surface, the fourth inclined surface is in abutment and sliding connection with the second inclined surface, and the other side of the first inclined block and the other side of the second inclined block are respectively in abutment with the inner side wall of the lower inner mold.
3. The encapsulated core injection mold of claim 2, wherein, An inclination angle between the first inclined surface and the second inclined surface and the upper end surface of the lower inner mold is less than 90°.
4. The encapsulated core injection mold of claim 1, wherein, The first fixing assembly and the second fixing assembly are respectively screws.
5. The encapsulated core injection mold of claim 1, wherein, The first slider seat and the second slider seat are symmetrically arranged about the mold core.
6. The encapsulated core injection mold of claim 1, wherein, An inner side of the first positioning groove and the second positioning groove is coated with an anti-wear coating.