Combined embedded core type injection molding mold

Abstract

The utility model relates to a combined core-embedded type injection molding mold which comprises a lower combined core-embedded module, an upper mold laminating plate is arranged corresponding to the lower combined core-embedded module, and a molding mold cavity inner wall corresponding embedding column corresponding to a channel of an injection needle is arranged on the upper mold laminating plate; the lower combined embedded core module comprises a lower embedded core A and a lower embedded core B which are correspondingly spliced, the lower embedded core A and the lower embedded core B are respectively provided with a corresponding injection needle cylinder connecting part and a tapered connecting part, the outer wall of a forming mold cavity of the injection needle connecting part corresponds to a mold groove A, the outer wall of the forming mold cavity corresponds to a mold groove B, and the lower embedded core A and the lower embedded core B are spliced and positioned through an external positioning type combined ring after being spliced. And the combined embedded core type injection molding structure is formed.

Description

Combined insert injection mold Technical Field

[0001] This utility model relates to precision manufacturing, and in particular to injection molding technology, specifically a combined insert-type injection molding mold. Background Technology

[0002] Referring to the injection needle holder 100 in Figure 1, it includes an injection syringe connecting part 101, which is connected to a tapered connecting part A102 and an injection needle connecting part 103. A reinforcing connecting body 104 is provided on the tapered connecting part A102 and the injection needle connecting part 103. The injection syringe connecting part 101, the tapered connecting part 102, and the injection needle connecting part 103 have corresponding injection needle channels in the middle. Due to the small size of the injection needle holder 100, the mold design for penetration involves machining the mold corresponding to the injection syringe connecting part 101, the tapered connecting part 102, and the injection needle connecting part 103 on the lower mold, which is difficult and results in high product production costs.

[0003] Therefore, there is a need to provide a combined insert-type injection molding die to solve the above problems. Summary of the Invention

[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 combined insert type injection mold includes a lower combined insert module, an upper mold bonding plate is provided corresponding to the lower combined insert module, and the upper mold bonding plate is provided with corresponding inserts on the inner wall of the molding cavity corresponding to the injection needle channel.

[0007] The lower composite insert module includes corresponding lower insert A and lower insert B. Lower insert A and lower insert B respectively have mold groove A and mold groove B on the outer wall of the molding cavity corresponding to the injection syringe connecting part, the tapered connecting part, and the injection needle connecting part. After the lower insert A and lower insert B are assembled, they are assembled and positioned by an external positioning combination ring to form a composite insert injection molding structure.

[0008] Furthermore, a slanted deep-hole gate is provided at the joint of the lower insert A and the lower insert B, and the inlet of the slanted deep-hole gate is connected to the molding cavity of the tapered joint.

[0009] Furthermore, the outer positioning combination ring is equipped with a side fan-shaped positioning platform for use with the lower insert A and the lower insert B.

[0010] Furthermore, the bottom of either lower insert A or lower insert B is provided with a combined insert positioning notch.

[0011] Furthermore, the lower assembly insert module also includes a lower positioning insert that matches the insert post on the inner wall of the molding cavity.

[0012] Furthermore, the lower positioning insert has a lower positioning hole in the middle that matches the corresponding insert post on the inner wall of the molding cavity. The lower positioning hole has a trumpet-shaped opening, and the corresponding insert post on the inner wall of the molding cavity has a snap-in positioning body that matches the trumpet-shaped opening.

[0013] Furthermore, the lower positioning insert has a lower positioning notch.

[0014] Compared with the prior art, this utility model directly processes the corresponding grooves of the molding cavity on the outer wall of the molding cavity of the matching injection syringe connecting part, tapered connecting part, and injection needle connecting part onto the lower insert A and lower insert B. Then, by assembling the lower insert A and lower insert B, the required mold cavity can be obtained. The lower insert A and lower insert B are mounted on the lower mold, which replaces the processing of the required mold cavity on the lower mold, effectively reducing the difficulty of setting the molding cavity and reducing production costs. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the structure of the injection needle hub 100.

[0016] Figure 2 is a structural schematic diagram of this utility model.

[0017] Figure 3 is a cross-sectional view of the lower combined embedded core module.

[0018] Figure 4 is a bottom view of the lower assembly insert module.

[0019] Figure 5 is a schematic diagram of the external positioning combination ring.

[0020] Figure 6 is a schematic diagram of the structure of the embedded pillars on the inner wall of the molding cavity. Detailed Implementation

[0021] Example:

[0022] Referring to Figures 2-6, this embodiment shows a combined insert type injection molding mold, including a lower combined insert module 200, an upper mold bonding plate 1 is provided corresponding to the lower combined insert module 200, and the upper mold bonding plate 1 is provided with corresponding inserts 2 on the inner wall of the molding cavity corresponding to the injection needle channel.

[0023] The lower composite insert module 200 includes correspondingly assembled lower inserts A3 and B4. Lower inserts A3 and B4 respectively have mold grooves A21 and B on the outer wall of the molding cavity corresponding to the injection syringe connecting part 101, the tapered connecting part 102, and the injection needle connecting part 103. After the lower inserts A3 and B4 are assembled, they are assembled and positioned by the external positioning combination ring 5 to form a composite insert injection molding structure.

[0024] An oblique deep hole gate 6 is provided at the joint of the lower insert A3 and the lower insert B4. The inlet of the oblique deep hole gate 6 is connected to the molding cavity of the tapered connecting part 102.

[0025] The outer positioning combination ring 5 is provided with a side fan-shaped positioning platform 51 for use with the lower insert A3 and the lower insert B4.

[0026] The bottom of either the lower insert A3 or the lower insert B4 is provided with a combined insert positioning notch 7.

[0027] The lower combination insert module 200 also includes a lower positioning insert 8 that matches the insert post 2 on the inner wall of the molding cavity.

[0028] The lower positioning insert 8 has a lower insert positioning hole 81 in the middle that matches the corresponding insert post on the inner wall of the molding cavity. The lower insert positioning hole 81 has a trumpet-shaped opening, and the corresponding insert post on the inner wall of the molding cavity has a snap-in positioning body 21 that matches the trumpet-shaped opening.

[0029] The lower positioning insert 8 has a lower positioning notch 82.

[0030] Compared with the prior art, this utility model directly processes the corresponding grooves of the molding cavity on the outer wall of the molding cavity of the matching injection syringe connecting part, tapered connecting part, and injection needle connecting part onto the lower insert A and lower insert B. Then, by assembling the lower insert A and lower insert B, the required mold cavity can be obtained. The lower insert A and lower insert B are mounted on the lower mold, which replaces the processing of the required mold cavity on the lower mold, effectively reducing the difficulty of setting the molding cavity and reducing production costs.

[0031] 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 combined insert-type injection molding mold, characterized in that: The system includes a lower core-insertion module, with an upper mold bonding plate corresponding to the lower core-insertion module. The upper mold bonding plate has corresponding inserts on the inner wall of the molding cavity corresponding to the injection needle channel. The lower core-insertion module includes lower core A and lower core B that are assembled. Lower core A and lower core B have corresponding mold grooves A and B on the outer wall of the molding cavity corresponding to the injection syringe connecting part, tapered connecting part, and injection needle connecting part, respectively. After lower core A and lower core B are assembled, they are positioned by an external positioning combination ring to form a combined core-insertion injection molding structure.

2. The combined insert-type injection mold according to claim 1, characterized in that: A slanted deep-hole gate is provided at the joint of the lower insert A and the lower insert B. The inlet of the slanted deep-hole gate is connected to the molding cavity of the tapered joint.

3. The combined insert-type injection mold according to claim 1, characterized in that: The outer positioning combination ring is equipped with a side fan-shaped positioning platform for use with the lower insert A and the lower insert B.

4. The combined insert-type injection mold according to claim 1, characterized in that: The bottom of either lower insert A or lower insert B is provided with a combined insert positioning notch.

5. A combined insert-type injection mold according to any one of claims 1-4, characterized in that: The lower assembly insert module also includes a lower positioning insert that matches the insert post on the inner wall of the molding cavity.

6. A combined insert-type injection mold according to claim 5, characterized in that: The lower positioning insert has a positioning hole in the middle that matches the corresponding insert post on the inner wall of the molding cavity. The positioning hole has a trumpet-shaped opening, and the corresponding insert post on the inner wall of the molding cavity has a snap-in positioning body that matches the trumpet-shaped opening.

7. A combined insert-type injection mold according to claim 5, characterized in that: The lower positioning insert has a lower positioning notch.

Images