Core-wrapped type injection molding mold with centered middle part and uniformly positioned circumference

Abstract

The utility model relates to a center-centered and circumference-uniformly-positioned core-wrapped type injection molding mold which comprises a lower mold and an upper mold which are correspondingly arranged and combined to form a molding mold structure, a lower mold insert block is arranged on the lower mold, an upper mold insert core matched with the lower mold insert block is arranged on the upper mold, a lower mold groove is formed in the lower mold insert block, and the lower mold groove is matched with the lower part of a cover body without an inclined tooth groove. A metal-wrapped centering column is arranged in the middle; the upper die embedded core is provided with an upper die cavity, the upper die cavity is provided with four sawtooth groove corresponding plates matched with the four inclined tooth grooves, and the four inclined tooth groove corresponding plates are used as tooth groove part positioning bodies of the metal wrapping core at the same time.

Description

Centered and uniformly positioned core-type injection mold Technical Field

[0001] This utility model relates to precision manufacturing, and in particular to injection molding technology. Specifically, it relates to a center-centered, uniformly positioned, core-type injection molding mold. Background Technology

[0002] Referring to the cover 100 in Figure 1, the cover 100 includes a metal core 101, and an outer cover is formed by injection molding. The metal core 101 and the outer cover are uniformly provided with four inclined grooves 102. During the injection molding process, the positioning requirements of the metal core 101 are high. If it is affected by the impact of the molten fluid during the molding process, the inclined grooves 102 of the metal core 101 and the outer cover will have positional deviations after the product is formed, and the product will be unqualified.

[0003] Therefore, there is a need to provide a center-centered, uniformly positioned, core-enclosed injection molding die to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a center-centered, uniformly positioned, core-type injection molding mold.

[0005] This utility model achieves the above objectives through the following technical solution:

[0006] A center-centered, circumferentially uniformly positioned, core-enclosed injection molding die includes a lower die and an upper die that are correspondingly arranged to form a molding die structure. The lower die has a lower die insert, and the upper die has an upper die core that matches the lower die insert. The lower die insert has a lower die groove that matches the lower part of a cover without inclined teeth. The upper die core has an upper die cavity, and the upper die cavity has four serrated groove corresponding plates that match the four inclined teeth. The four serrated groove corresponding plates also serve as positioning bodies for the toothed part of the metal core.

[0007] Furthermore, the metal-core centering post is used as the central positioning body for the metal core.

[0008] Furthermore, the four inclined toothed grooves correspond to the plates, which are evenly distributed to form a multi-position positioning body with a metal core.

[0009] Furthermore, the central positioning body combined with multiple peripheral positioning bodies forms a centrally centered, uniformly positioned injection molding structure.

[0010] Furthermore, the upper mold insert is provided with an upper mold insert positioning notch.

[0011] Furthermore, the lower mold groove is composed of a lower cavity ring of a matching cover body ring disposed on the lower mold insert.

[0012] Compared with the prior art, this utility model uses a center-centered, uniformly positioned injection molding structure to ensure that the core will not be displaced due to the impact of molten plastic fluid during molding, thus ensuring the product qualification rate. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the structure of the cover 100.

[0014] Figure 2 is a structural schematic diagram of this utility model.

[0015] Figure 3 is a schematic diagram of the upper mold insert structure.

[0016] Figure 4 is a schematic diagram of the lower mold insert. Detailed Implementation

[0017] Example:

[0018] Referring to Figures 2-4, this embodiment illustrates a center-centered, uniformly positioned, core-type injection molding die, including a lower mold and an upper mold that are correspondingly arranged to form a molding die structure. The lower mold has a lower mold insert 1, and the upper mold has an upper mold core 2 that matches the lower mold insert 1. The lower mold insert 1 has a lower mold groove 11, which matches the lower part of the cover 100 without inclined grooves. The middle part has a metal core-centered pillar 3. The upper mold core 2 has an upper mold cavity 20, and the upper mold cavity 20 has four serrated groove corresponding plates 4 that match the four inclined grooves 102. The four inclined groove corresponding plates 4 also serve as positioning bodies for the groove part of the metal core 101.

[0019] The metal-core centering column 3 is used as the central positioning body for the metal-core 101.

[0020] Four inclined toothed grooves correspond to plate 4 and are evenly distributed to form a multi-position positioning body around the metal core 101.

[0021] The central positioning body is combined with multiple peripheral positioning bodies to form a centrally centered, uniformly positioned injection molding structure.

[0022] The upper mold insert 2 is provided with an upper mold insert positioning notch 21.

[0023] The lower mold groove 11 is composed of the lower cavity ring 5 of the matching cover 100 set on the lower mold insert 1.

[0024] The bottom of the lower mold groove 11 has a recessed discharge hole 6, which is used as a spare hole to ensure the overflow of the mold cavity during injection filling, and to ensure that the mold cavity is filled.

[0025] There are two lower mold grooves 11, which are symmetrically distributed with reference to the metal core centering column 3.

[0026] Compared with the prior art, this utility model uses a center-centered, uniformly positioned injection molding structure to ensure that the core will not be displaced due to the impact of molten plastic fluid during molding, thus ensuring the product qualification rate.

[0027] 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 center-centered, uniformly positioned, core-enclosed injection molding die, characterized in that: The mold includes a lower mold and an upper mold that are configured to form a molding die structure. The lower mold has a lower mold insert, and the upper mold has an upper mold core that matches the lower mold insert. The lower mold insert has a lower mold groove that matches the lower part of the cover without inclined teeth and has a metal core centering post in the middle. The upper mold core has an upper mold cavity, and the upper mold cavity has four serrated groove plates that match the four inclined teeth. The four serrated groove plates also serve as positioning bodies for the toothed part of the metal core.

2. The center-centered, uniformly positioned, core-enclosed injection molding die according to claim 1, characterized in that: Metal-core centering posts are used as central positioning bodies for metal-core structures.

3. The center-centered, uniformly positioned, core-enclosed injection molding die according to claim 2, characterized in that: Four inclined toothed grooves correspond to the plates, evenly distributed, forming a multi-position positioning body with a metal core.

4. The center-centered, uniformly positioned, core-enclosed injection molding die according to claim 3, characterized in that: The central positioning body is combined with multiple peripheral positioning bodies to form a centrally centered, uniformly positioned injection molding structure.

5. A center-centered, uniformly positioned, core-enclosed injection molding die according to claim 1, characterized in that: The upper mold insert has a positioning notch.

6. The center-centered, uniformly positioned, core-enclosed injection molding die according to claim 1, characterized in that: The lower mold groove is formed by the lower cavity ring of the matching cover body ring set on the lower mold insert.

Images