Iron-clad core injection molding die with upper and lower coordinated positioning
By using a steel-clad core injection molding mold with coordinated upper and lower positioning, and utilizing a hollow column centering column and a positioning plate assembly for the winding gap area, the positioning problem of the steel body during the injection molding process is solved, ensuring product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU PINUOWEI PRECISION MFG TECH CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-30
AI Technical Summary
During the injection molding process, the iron body is difficult to position accurately, which leads to displacement and affects the product qualification rate.
The iron-clad core injection molding mold adopts upper and lower coordinated positioning. Through the combination design of the upper and lower molds, a centrally centered and coordinated multi-position corner clamping positioning structure is formed by using hollow column centering column and winding gap area positioning plate assembly to ensure that the iron-clad core does not displace under the impact of molten plastic fluid.
Precise positioning of the iron-clad core was achieved, ensuring a high product qualification rate during the injection molding process.
Smart Images

Figure CN224426246U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to precision manufacturing, and in particular to injection molding technology. Specifically, it relates to an iron-clad core injection molding mold with upper and lower coordinated positioning. Background Technology
[0002] See Figure 1 Product 100 includes an internal iron body 101, which has an insulating plastic part formed by injection molding. The iron body 101 includes a central hollow iron column 102, and four wings 103 are connected around the central hollow iron column 102. Each wing 103 has two wing extensions 104 on both sides at its end. The wing extensions 104 of adjacent wings 103 have winding gap areas. During the preparation of product 100, the iron body 101 needs to be precisely positioned to avoid displacement of the iron body 101 due to the impact of molten plastic fluid during injection molding, thus ensuring the product qualification rate.
[0003] Therefore, there is a need to provide a metal core injection molding die with coordinated upper and lower positioning to achieve the above objectives. Utility Model Content
[0004] The purpose of this invention is to provide a combined insert-type injection molding mold.
[0005] This utility model achieves the above objectives through the following technical solution:
[0006] A steel-clad core injection molding die with coordinated upper and lower positioning includes an upper mold and a lower mold. The upper mold has an upper mold groove, and the lower mold has a lower mold groove. A hollow cylindrical upper centering post is provided in the upper mold groove, and a winding gap positioning plate assembly is provided corresponding to the hollow cylindrical upper centering post. The hollow cylindrical upper centering post and the winding gap positioning plate assembly together form an upper mold positioning structure. A hollow cylindrical lower centering post is provided in the lower mold groove, and a corresponding lower mold positioning part is provided corresponding to the hollow cylindrical lower centering post for use with the winding gap positioning plate assembly. The two parts are combined to form a steel-clad core injection molding structure with coordinated upper and lower positioning.
[0007] Furthermore, the height of the lower centering column of the hollow column is 8-10mm greater than the corresponding positioning part of the lower mold.
[0008] Furthermore, the winding gap area positioning plate assembly includes a front stop and a rear stop on both sides of the top-holding wing extension. The front stop and the rear stop cooperate with the centering column on the hollow column to form a center-centering coordinated multi-position corner clamping positioning structure.
[0009] Furthermore, the winding gap positioning plate assembly includes several corner positioning plate modules used in conjunction. Each corner positioning plate module consists of a set of locking plates, and the locking feet at the bottom of the set of locking plates are used as front and rear stops.
[0010] Furthermore, the lower mold corresponding positioning part is composed of a lower positioning upright plate set by the corresponding corner positioning plate module.
[0011] Compared with the prior art, this utility model uses a flat support at the bottom to support the core, and a center-centered and multi-position corner-locking positioning structure at the top for precise positioning. This ensures that the iron core will not be displaced by the impact of the molten plastic fluid during injection molding, thereby ensuring the product qualification rate. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of product 100.
[0013] Figure 2 This is a schematic diagram of the structure of this utility model.
[0014] Figure 3 This is a schematic diagram of the upper mold positioning structure.
[0015] Figure 4 This is one of the schematic diagrams of an iron-clad core injection molding structure with coordinated upper and lower positioning.
[0016] Figure 5 This is the second schematic diagram of a metal-clad core injection molding structure with coordinated upper and lower positioning. Detailed Implementation
[0017] Example:
[0018] See Figure 2-5 This embodiment demonstrates a co-positioning iron-clad core injection molding die, including an upper die and a lower die 2 formed by positioning posts 1. The upper die has an upper die groove, and the lower die 2 has a lower die groove 21. A hollow cylindrical upper centering post 3 is provided on the upper die groove, and a winding gap area positioning plate assembly 4 is provided corresponding to the hollow cylindrical upper centering post 3. The hollow cylindrical upper centering post 3 and the winding gap area positioning plate assembly 4 form an upper die positioning structure. A hollow cylindrical lower centering post 5 is provided in the lower die groove 21, and a lower die corresponding positioning part 6 is provided corresponding to the hollow cylindrical lower centering post 5 for use with the winding gap area positioning plate assembly 4. The two are combined to form a co-positioning iron-clad core injection molding structure.
[0019] The height of the lower centering column 5 of the hollow column is greater than that of the corresponding positioning part 6 of the lower mold, by 8-10mm.
[0020] The winding gap positioning plate assembly 4 includes a front stop 41 and a rear stop 42 on both sides of the top supporting wing extension. The front stop 41 and the rear stop 42 cooperate with the centering column 3 on the hollow column to form a center-centering coordinated multi-position corner clamping positioning structure.
[0021] The winding gap positioning plate assembly 4 includes several corner positioning plate modules used in conjunction. Each corner positioning plate module consists of a set of locking plates 40. The locking feet at the bottom of the set of locking plates 40 are used as the front stop 41 and the rear stop 42.
[0022] The lower mold corresponding positioning part 6 is composed of a lower positioning plate 61 set by the corresponding corner positioning plate module.
[0023] Compared with the prior art, this utility model uses a flat support at the bottom to support the core, and a center-centered and multi-position corner-locking positioning structure at the top for precise positioning. This ensures that the iron core will not be displaced by the impact of the molten plastic fluid during injection molding, thereby ensuring the product qualification rate.
[0024] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.
Claims
1. A metal core injection molding die with upper and lower coordinated positioning, characterized in that: The system includes an upper mold and a lower mold. The upper mold has an upper mold groove, and the lower mold has a lower mold groove. A hollow cylindrical upper centering column is provided in the upper mold groove, and a winding gap positioning plate assembly is provided corresponding to the hollow cylindrical upper centering column. The hollow cylindrical upper centering column and the winding gap positioning plate assembly together form an upper mold positioning structure. A hollow cylindrical lower centering column is provided in the lower mold groove, and a corresponding lower mold positioning part is provided corresponding to the hollow cylindrical lower centering column for use with the winding gap positioning plate assembly. The system is combined to form an iron-clad core injection molding structure with coordinated upper and lower positioning.
2. The iron-clad core injection molding die with upper and lower coordinated positioning according to claim 1, characterized in that: The height of the lower centering column of the hollow column is 8-10mm greater than the corresponding positioning part of the lower mold.
3. The iron-clad core injection molding die with upper and lower coordinated positioning according to claim 2, characterized in that: The winding gap positioning plate assembly includes a front stop and a rear stop on both sides of the top-supporting wing extension. The front stop and the rear stop work together with the centering column on the hollow column to form a center-centering coordinated multi-position corner locking positioning structure.
4. The iron-clad core injection molding die with upper and lower coordinated positioning according to claim 3, characterized in that: The winding gap positioning plate assembly includes several corner positioning plate modules used in conjunction. Each corner positioning plate module consists of a set of locking plates. The locking feet at the bottom of the set of locking plates are used as front and rear stops.
5. The iron-clad core injection molding die with upper and lower coordinated positioning according to claim 4, characterized in that: The lower mold's corresponding positioning part is composed of a lower positioning upright plate set by the corresponding corner positioning plate module.