A hot runner three-plate mold structure

Abstract

This utility model belongs to the field of three-plate mold technology, and in particular to a hot runner three-plate mold structure, including a front panel and a sprue plate installed at the lower end of the front panel. An A plate is installed at the lower end of the sprue plate, and a female mold core is located at the lower end of the A plate. A B plate is located below the A plate, and a male mold core is located at the upper end of the B plate. A square iron is located below the B plate, and a base plate is located below the square iron. A positioning ring and a pull pin are arranged between the front panel, sprue plate, A plate, and female mold core. A hot runner is also provided at the lower end of the positioning ring, and a sprue sleeve is provided at the lower end of the hot runner. A runner plate is arranged between the sprue plate and the A plate. Through this hot runner three-plate mold structure, the design of a conventional three-plate mold base can be modified without changing the shape of the customer's product. Combined with a hot runner, it achieves the purpose of reducing material waste and improving product quality. It has the advantages of strong versatility, high professionalism, simple manufacturing, and reduced injection molding costs.

Description

Technical Field

[0001] This utility model belongs to the field of three-plate mold technology, specifically relating to a hot runner three-plate mold structure. Background Technology

[0002] A three-plate mold is a type of mold structure that includes a front plate, a rear plate, and a middle plate located between the front and rear plate. In a three-plate mold, a front mold core receiving cavity is formed between the front plate and the middle plate, and a rear mold core receiving cavity is formed between the middle plate and the rear plate. The front mold core is installed in the front mold core receiving cavity, and the rear mold core is installed in the rear mold core receiving cavity. A cavity is formed between the front mold core and the rear mold core. A gate communicating with the cavity is provided on the front plate, and a hot runner communicating with the front mold core is provided on the side wall of the front mold core receiving cavity.

[0003] In the injection molding industry, when there are multiple products or a single product with multiple injection points, using a standard three-plate mold with a cold runner and narrow gate for injection molding can result in excessively long runner waste at the two-shot bushing. This prevents direct injection into the cavity to form the product the customer needs. Furthermore, the excessively long runner and rapid cooling of the glue cause numerous product defects, leading to unstable product quality and low yield. If the production volume is large, the runner placement results in significant material waste.

[0004] To address the aforementioned issues, this application proposes a hot runner three-plate mold structure. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a hot runner three-plate mold structure, which features reduced raw material waste, improved product quality, and increased production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot runner three-plate mold structure, comprising a front panel and a sprue plate installed at the lower end of the front panel, an A plate installed at the lower end of the sprue plate, a female mold core disposed at the lower end of the A plate, a B plate disposed below the A plate, a male mold core disposed at the upper end of the B plate, a square iron disposed below the B plate, and a base plate disposed below the square iron. A positioning ring and a pull pin are disposed between the front panel, the sprue plate, the A plate, and the female mold core. A hot runner is also disposed at the lower end of the positioning ring, a sprue sleeve is disposed at the lower end of the hot runner, a runner plate is disposed between the sprue plate and the A plate, a pin base plate is disposed at the upper end of the base plate, and a pin front panel is disposed on the pin base plate.

[0007] As a preferred embodiment of this utility model, the hot runner is also located in the panel and the sprue plate, and the bottom of the sprue sleeve is interconnected with the runner in the runner plate.

[0008] In a preferred embodiment of this invention, the sprue plate, A plate, and female mold core are fixed by bolts.

[0009] In a preferred embodiment of this utility model, the square iron, the base plate, and the B plate are fixed by bolts, and the needle face plate and the needle base plate are fixed by bolts.

[0010] As a preferred embodiment of this utility model, the male mold core is fixed to the B plate by bolts.

[0011] Compared with the existing technology, the beneficial effects of this utility model are: by using a hot runner three-plate mold structure, the design of a regular three-plate mold base can be modified without changing the shape of the customer's product. When used in conjunction with a hot runner, it can reduce material waste and improve product quality. It has the advantages of strong versatility, strong professionalism, simple manufacturing and reduced injection molding costs. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a side view of the structure of this utility model;

[0014] Figure 2 This is a top view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention from a frontal view.

[0016] Figure 4 This is a schematic diagram of the structure of the present invention from a two-dimensional side view;

[0017] Figure 5 This is a top view of the structure of the present invention.

[0018] Figure 6 This is a schematic diagram of the structure of the two-ray main view of this utility model;

[0019] In the diagram: 1. Front panel; 2. Sprue plate; 3. A plate; 4. Female mold core; 5. B plate; 6. Male mold core; 7. Square iron; 8. Base plate; 9. Locating ring; 10. Pull pin; 11. Hot runner; 12. Sprue bushing; 13. Runner plate; 14. Pin front panel; 15. Pin base plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] Please see Figure 1-6 This utility model provides the following technical solution: a hot runner three-plate mold structure, including a front panel 1 and a sprue plate 2 installed at the lower end of the front panel 1. An A plate 3 is installed at the lower end of the sprue plate 2. A female mold core 4 is provided at the lower end of the interior of the A plate 3. A B plate 5 is provided below the A plate 3. A male mold core 6 is provided at the upper end of the interior of the B plate 5. A square iron 7 is provided below the B plate 5. A base plate 8 is provided below the square iron 7. A positioning ring 9 and a pull pin 10 are provided between the front panel 1, the sprue plate 2, the A plate 3, and the female mold core 4. A hot runner 11 is also provided at the lower end of the positioning ring 9. A sprue sleeve 12 is provided at the lower end of the hot runner 11. A runner plate 13 is provided between the sprue plate 2 and the A plate 3. A pin base plate 15 is provided at the upper end of the base plate 8. A pin front panel 14 is provided on the pin base plate 15. In this embodiment, only a simple modification to the conventional three-plate mold on the market is needed, and it can be used with a conventional hot runner. It effectively improves product defects, increases raw material utilization and product yield, and saves labor time.

[0023] Specifically, the hot runner 11 is also located in the panel 1 and the sprue plate 2, and the bottom of the sprue bushing 12 is interconnected with the runner in the runner plate 13. In this embodiment, by improving the three-plate mold structure of the hot runner, the injection molding cycle is significantly shortened, the mold opening time is shorter, raw materials are saved, and the injection molding temperature is controlled more accurately. This significantly reduces injection molding costs and improves production efficiency.

[0024] Specifically, the sprue plate 2, A plate 3, and female mold core 4 are fixed with bolts; the square iron 7, base plate 8, and B plate 5 are fixed with bolts; and the pin face plate 14 and pin base plate 15 are fixed with bolts. The male mold core 6 is fixed to B plate 5 with bolts.

[0025] The working principle and usage process of this utility model: Assemble this utility model according to the figure, and then fix it with positioning screws;

[0026] During injection molding, after the female mold core 4 and male mold core 6 open, the sprue plate 2 moves outward, pulling the sprue pin 10. The sprue pin 10 pulls out the sprue head, and under the action of the robotic arm, all the sprue heads are removed. The fully automatic removal action is completed, and then the machine resets automatically.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hot runner three-plate mold structure, comprising a panel (1) and a sprue plate (2) installed at the lower end of the panel (1), wherein an A plate (3) is installed at the lower end of the sprue plate (2), characterized in that: The lower end of the A plate (3) is provided with a female mold core (4), the B plate (5) is provided below the A plate (3), the upper end of the B plate (5) is provided with a male mold core (6), the lower end of the B plate (5) is provided with a square iron (7), the lower end of the square iron (7) is provided with a base plate (8), the positioning ring (9) and the pull pin (10) are provided between the panel (1), the sprue plate (2), the A plate (3) and the female mold core (4), the lower end of the positioning ring (9) is also provided with a hot runner (11), the lower end of the hot runner (11) is provided with a sprue sleeve (12), the sprue plate (2) and the A plate (3) are provided with a runner plate (13), the upper end of the base plate (8) is provided with a pin base plate (15), and the pin base plate (15) is provided with a pin panel (14).

2. The hot runner three-plate mold structure according to claim 1, characterized in that: The hot runner (11) is also located in the panel (1) and the sprue plate (2), and the bottom of the sprue sleeve (12) is connected to the runner in the runner plate (13).

3. The hot runner three-plate mold structure according to claim 1, characterized in that: The sprue plate (2), A plate (3), and female mold core (4) are fixed by bolts.

4. The hot runner three-plate mold structure according to claim 1, characterized in that: The square iron (7), the base plate (8), and the B plate (5) are fixed by bolts, and the needle panel (14) and the needle base plate (15) are fixed by bolts.

5. A hot runner three-plate mold structure according to claim 1, characterized in that: The male mold core (6) is fixed to plate B (5) by bolts.

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