Injection mold capable of ejecting injection-molded part after mold opening

Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold capable of ejecting an injection molding part after mold opening, which comprises a fixed column, a component force plate is fixedly connected to one side of the outer wall of the fixed column, a fixed block is fixedly connected to the outer wall of the component force plate, an inclined plate is fixedly connected to one side of the outer wall of the component force plate, a limiting hole is formed in the inclined plate, and the fixed block is fixedly connected to the limiting hole. And a fixed convex block is slidably connected to the interior of the inclined plate, an upper buckle plate is fixedly connected to one side of the outer wall of the fixed convex block, an upper insert is fixedly connected to the upper surface of the upper buckle plate, and the lower surface of the upper insert is attached to the upper surface of the inclined plate. According to the utility model, the upper insert and the lower insert are added into the injection molding process, so that the limiting hole can be formed on the outer walls of the fixed convex block and the wedging block, the upper buckle plate can protect the mouth part and help the fixed convex block and the wedging block to smoothly demould, the practicability of the mould is improved, and the inclined hole forming mode reduces the production cost and simplifies the mould.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold capable of ejecting injection molded parts by opening a mold. Background Art

[0002] Injection molds are tools used for plastic injection molding, including a structure composed of an upper mold and a lower mold. The molten plastic is injected into the mold cavity through the opening and closing movement of the mold to form a molded product. Cylinder-driven oblique core pull back is a technology that controls the oblique core pull by a hydraulic cylinder to smoothly push the product out of the mold after molding. It is often used to manufacture injection molded parts with complex internal structures or oblique holes, and optimize mold design and production efficiency.

[0003] During the injection molding process of the inclined hole structure, the plastic enters the mold cavity through the feed port of the mold, and then the cylinder pushes the inclined core through the hydraulic system to enter the plastic filling area obliquely, forming an inclined hole or special structure inside the molded part. After the filling is completed, the plastic cools and solidifies, and the cylinder reverses the operation to move the inclined core back to the initial position, ensuring smooth demolding of the molded part and optimizing production efficiency and product quality.

[0004] Although the design of using an oil cylinder to drive the oblique core pulling back can effectively realize the molding of complex internal structures, it also increases the complexity and manufacturing cost of the mold. Therefore, an injection mold that can open the mold and eject the injection molded parts is proposed. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an injection mold that can eject injection molded parts when the mold is opened, aiming to improve the problem that the oblique core pulling technology used in oblique hole molding in the prior art is complicated and costly, resulting in reduced production efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold for opening the mold and ejecting the injection molded parts, comprising a fixed column, a force distribution plate is fixedly connected to one side of the outer wall of the fixed column, a fixed block is fixedly connected to the outer wall of the force distribution plate, an inclined plate is fixedly connected to one side of the outer wall of the force distribution plate, a limiting hole is provided inside the inclined plate, a fixed protrusion is slidably connected inside the inclined plate, an upper buckle plate is fixedly connected to one side of the outer wall of the fixed protrusion, an upper insert is fixedly connected to the upper surface of the upper buckle plate, the lower surface of the upper insert is attached to the upper surface of the inclined plate, a fitting block is provided on the lower surface of the fixed protrusion, and a lower insert is fixedly connected to the lower surface of the fitting block.

[0007] Furthermore, a connecting tube is arranged inside the fixing column.

[0008] Furthermore, an opening is provided inside the connecting tube.

[0009] Furthermore, the upper surface of the lower insert is attached to the lower surface of the inclined plate.

[0010] Furthermore, two limiting rings are fixedly connected to the outer wall of the fixing column.

[0011] Furthermore, a plurality of fixing rings are fixedly connected to the outer wall of the fixing column, and a groove is provided inside the fixing column.

[0012] Furthermore, the plurality of fixing rings are symmetrically distributed on the outer wall of the fixing column.

[0013] Furthermore, two limiting rings are symmetrically distributed on the outer wall of the fixing column.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, by adding the upper insert and the lower insert into the injection molding process, the limiting hole can be formed on the outer wall of the fixed protrusion and the fitting block. The upper buckle plate can protect the mouth and help the fixed protrusion and the fitting block to be demolded smoothly, thereby improving the practicality of the mold. Such an inclined hole molding method reduces the production cost and simplifies the mold.

[0016] 2. In the utility model, the force dividing plate connected by the inclined plate and the fixed block connected by the force dividing plate share the pressure for the inclined plate, so that the lower insert and the upper buckle plate can be forcibly released during the demoulding process, thereby ensuring the stability of the mold structure and improving the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural diagram of an injection mold for ejecting an injection molded part after mold opening proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a limiting hole of an injection mold for ejecting an injection molded part proposed by the utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Legend:

[0021] 1. Fixed column; 2. Connecting tube; 3. Opening; 4. Fixed ring; 5. Groove; 6. Force distribution plate; 7. Fixed block; 8. Inclined plate; 9. Limiting hole; 10. Limiting ring; 11. Upper insert; 12. Lower insert; 13. Upper buckle plate; 14. Fixed protrusion; 15. Fitting block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of the utility model is as follows: an injection mold for ejecting injection molded parts by opening a mold, comprising a fixed column 1, a force dividing plate 6 is fixedly connected to one side of the outer wall of the fixed column 1, a fixed block 7 is fixedly connected to the outer wall of the force dividing plate 6, an inclined plate 8 is fixedly connected to one side of the outer wall of the force dividing plate 6, a limiting hole 9 is provided inside the inclined plate 8, a fixed protrusion 14 is slidably connected inside the inclined plate 8, an upper buckle plate 13 is fixedly connected to one side of the outer wall of the fixed protrusion 14, an upper insert 11 is fixedly connected to the upper surface of the upper buckle plate 13, the lower surface of the upper insert 11 is attached to the upper surface of the inclined plate 8, a fitting block 15 is provided on the lower surface of the fixed protrusion 14, and a lower insert 12 is fixedly connected to the lower surface of the fitting block 15.

[0024] Specifically, during the injection molding process, in order to easily form the limiting hole 9, the mold uses a fixed protrusion 14 and a fitting block 15 to assist in the formation of the inclined hole, which can avoid using a hydraulic cylinder to control the retreat operation of the inclined core pulling. The inclined core pulling is used to form an inclined hole or other complex internal structures in the product, but this will increase the complexity and manufacturing cost of the mold. Through the fixed protrusion 14 and the fitting block 15 connected by the upper insert 11 and the lower insert 12, the limiting hole 9 can be easily formed during the molding process, thereby simplifying the mold structure and improving production efficiency.

[0025] Reference Figure 1 and Figure 2 A connecting tube 2 is provided inside the fixed column 1, an opening 3 is opened inside the connecting tube 2, the upper surface of the lower insert 12 is fitted on the lower surface of the inclined plate 8, two limiting rings 10 are fixedly connected to the outer wall of the fixed column 1, a plurality of fixing rings 4 are fixedly connected to the outer wall of the fixed column 1, a groove 5 is opened inside the fixed column 1, a plurality of fixing rings 4 are symmetrically distributed on the outer wall of the fixed column 1, and two limiting rings 10 are symmetrically distributed on the outer wall of the fixed column 1.

[0026] Specifically, during demolding, the force dividing plate 6 connected by the inclined plate 8 and the fixed block 7 connected by the force dividing plate 6 share the pressure for the inclined plate 8, and the fixed column 1 and the fixed block 7 of the mold ensure that the limiting hole 9 will not be damaged. The buckle plate 13 on the undercut part of the insert can exert a strong force to help the mold to be demolded smoothly, avoiding damage to the mouth of the injection molded part, and further improving work efficiency.

[0027] Working principle: When it is necessary to use an injection mold that can eject the injection molded part after the mold is opened, the fixed protrusion 14 and the fitting block 15 are added during film injection so that the limit hole 9 can be easily formed, avoiding the use of a hydraulic cylinder to control the retreat operation of the oblique core pull during the molding process. The oblique core pull is often used in injection molded parts that need to form oblique holes or other complex internal structures. The oblique holes or specific shapes in the product are formed by tilting or moving the oblique core pull, but this increases the complexity and manufacturing cost of the mold. Therefore, the fixed protrusion 14 and the fitting block 15 connected by the upper insert 11 and the lower insert 12 are used to form the limit hole 9. This can avoid the use of oblique core pulls, thereby simplifying the mold structure and improving production efficiency. When demolding, fix the fixed column 1 and the fixed block 7 of the mold to avoid damage to the limit hole 9, so that the limit hole 9 can be better demolded. The upper buckle plate 13 of the inverted part of the insert can strongly demold the mold to ensure that the injection molded part can be smoothly pushed out of the mold when the mold is opened, avoiding damage to the mouth and improving work efficiency.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection mold for ejecting a molded part after mold opening, comprising a fixing column (1), characterized in that: A force component plate (6) is fixedly connected to one side of the outer wall of the fixed column (1), a fixed block (7) is fixedly connected to the outer wall of the force component plate (6), an inclined plate (8) is fixedly connected to one side of the outer wall of the force component plate (6), a limiting hole (9) is provided inside the inclined plate (8), a fixed protrusion (14) is slidably connected inside the inclined plate (8), an upper buckle plate (13) is fixedly connected to one side of the outer wall of the fixed protrusion (14), an upper insert (11) is fixedly connected to the upper surface of the upper buckle plate (13), the lower surface of the upper insert (11) is attached to the upper surface of the inclined plate (8), a fitting block (15) is provided on the lower surface of the fixed protrusion (14), and the lower surface of the fitting block (15) is fixedly connected to the lower insert (12).

2. The injection mold for ejecting molded parts after mold opening according to claim 1, characterized in that: A connecting tube (2) is arranged inside the fixing column (1).

3. The injection mold for ejecting molded parts after mold opening according to claim 2, characterized in that: An opening (3) is provided inside the connecting tube (2).

4. The injection mold for ejecting molded parts after mold opening according to claim 3, characterized in that: The upper surface of the lower insert (12) is fitted onto the lower surface of the inclined plate (8).

5. The injection mold for ejecting molded parts after mold opening according to claim 1, characterized in that: Two limiting rings (10) are fixedly connected to the outer wall of the fixing column (1).

6. The injection mold for ejecting molded parts after mold opening according to claim 1, characterized in that: A plurality of fixing rings (4) are fixedly connected to the outer wall of the fixing column (1), and a groove (5) is provided inside the fixing column (1).

7. The injection mold for ejecting molded parts after mold opening according to claim 6, characterized in that: The plurality of fixing rings (4) are symmetrically distributed on the outer wall of the fixing column (1).

8. The injection mold for ejecting molded parts after mold opening according to claim 5, characterized in that: The two limiting rings (10) are symmetrically distributed on the outer wall of the fixing column (1).

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