Injection mold with anti-deviation structure

Abstract

The utility model discloses an injection mold with an anti-deviation structure, which comprises a base plate, a fixed mold and a movable mold, a fixed column is fixed between the base plate and the fixed mold, a through hole is formed in the fixed mold, a movable plate is arranged at a crack between the base plate and the fixed mold, a push rod is arranged on the surface of the movable plate, and the push rod is connected with the fixed mold. The push rods and the penetrating holes are in one-to-one correspondence, the push rods penetrate through the penetrating holes, guide columns are fixed between the movable mold and the movable plate, the guide columns penetrate through the fixed mold, the base plate is fixed to a fixed mold plate of an injection molding machine, and when the movable mold and the fixed mold are closed, the push rods on the movable plate retreat from a mold cavity of the fixed mold; the push rod on the movable plate can push out a plastic product, and the plastic product can be automatically pushed out of the mold cavity by utilizing the movement of the movable mold during mold opening, so that the condition that the injection molding machine needs to eject out the product by virtue of a pushing mechanism subsequently is avoided, the structure of the injection molding machine is simplified, and meanwhile, the guide post is always connected with the movable mold, and the condition that the movable mold and the fixed mold deviate is also prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to an injection mold with an anti-deviation structure. Background Art

[0002] Injection mold is a tool for producing plastic products. It is composed of several groups of parts, and there is a molding cavity in this combination. During injection molding, the mold is clamped on the injection molding machine, and the molten plastic is injected into the molding cavity, where it is cooled and shaped, and then the mold is opened, and the product is ejected from the mold cavity by the ejection system. Finally, the mold is closed for the next injection molding. The entire injection molding process is carried out in a cycle.

[0003] The injection mold consists of a movable mold and a fixed mold. The movable mold is installed on the movable template of the injection machine, and the fixed mold is installed on the fixed template of the injection machine. During the operation of the injection mold, the movable mold and the fixed mold may be offset, which will eventually lead to rough and damaged surfaces of the guide pins. When the situation is serious, the guide pins will bend or cut off, and even the mold cannot be opened. One of the reasons for the offset between the movable mold and the fixed mold is due to insufficient clamping accuracy when clamping the movable mold and the fixed mold; at the same time, after the mold is opened, the plastic product in the mold cavity requires the injection molding machine's ejection mechanism to further work to eject the plastic product, which is inconvenient. Therefore, the utility model proposes an injection mold with an anti-offset structure, which avoids the need for the injection molding machine to eject the product with the help of an ejection mechanism, simplifies the structure of the injection molding machine, and prevents the movable mold and the fixed mold from offsetting. Utility Model Content

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold with an anti-deviation structure, comprising a base plate, a fixed mold and a movable mold, a fixed column is fixed between the base plate and the fixed mold, a through hole is opened inside the fixed mold, a movable plate is arranged in the gap between the base plate and the fixed mold, a push rod is arranged on the surface of the movable plate, the push rod and the through hole correspond one to one, and the push rod passes through the through hole, a guide column is fixed between the movable mold and the movable plate, and the guide column passes through the fixed mold.

[0005] As a preferred technical solution of the utility model, the base plate is fixed on a fixed template of the injection molding machine, and the movable mold is fixed on a movable template of the injection molding machine.

[0006] As a preferred technical solution of the utility model, the fixed pillars, the push rods and the guide pillars are all provided in a plurality and distributed on the base plate, the fixed mold and the movable mold.

[0007] As a preferred technical solution of the utility model, the edge of the movable plate is slidably connected to the fixed column.

[0008] As a preferred technical solution of the utility model, support parts are provided at the connection places between the two ends of the fixing column and the base plate and the fixed mold respectively.

[0009] As a preferred technical solution of the utility model, a cooling water channel is arranged inside the fixed mold, a water inlet is arranged at one end of the cooling water channel, and a water outlet is arranged at the other end of the cooling water channel.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model connects the base plate and the fixed template of the injection molding machine to fix the fixed mold, and a movable plate is arranged between the base plate and the fixed mold. The movable plate is fixedly connected with the movable mold by the guide column and the movable mold, and is connected with the movable plate through the movable mold. When the movable mold and the fixed mold are closed, the push rod on the movable plate withdraws from the mold cavity of the fixed mold. When the mold is opened, the push rod on the movable plate can push the plastic product out. The movement of the movable mold during mold opening can automatically push the plastic product out of the mold cavity, avoiding the need for the injection molding machine to eject the product with the help of a push mechanism in the future, simplifying the structure of the injection molding machine, and at the same time, the guide column and the movable mold are always connected, which can also prevent the movable mold and the fixed mold from being offset during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a side view of the utility model;

[0013] Figure 2 It is a cross-sectional view of the fixed mold in the utility model;

[0014] In the figure: 1. base plate; 2. fixed mold; 3. movable mold; 4. fixed column; 5. perforation; 6. movable plate; 7. push rod; 8. guide column; 9. support part; 10. cooling water channel; 11. water inlet; 12. water outlet. DETAILED DESCRIPTION

[0015] 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.

[0016] Example

[0017] See also Figure 1-2The utility model provides the following technical solutions: an injection mold with an anti-deviating structure, comprising a base plate 1, a fixed mold 2 and a movable mold 3, a fixed column 4 is fixed between the base plate 1 and the fixed mold 2, a through hole 5 is opened inside the fixed mold 2, a movable plate 6 is arranged at the gap between the base plate 1 and the fixed mold 2, a push rod 7 is arranged on the surface of the movable plate 6, the push rod 7 and the through hole 5 correspond one to one, and the push rod 7 passes through the through hole 5, a guide column 8 is fixed between the movable mold 3 and the movable plate 6, and the guide column 8 passes through the fixed mold 2, the base plate 1 is fixed on the fixed template of the injection molding machine, and the movable mold 3 is fixed on the movable template of the injection molding machine. In this embodiment, the base plate 1 is connected to the fixed template of the injection molding machine to fix the fixed mold 2. A movable plate 6 is arranged between the base plate 1 and the fixed mold 2. The movable plate 6 is fixedly connected to the movable mold 3 by the guide pillars 8, and is connected to the movable mold 3 and the movable plate 6. When the movable mold 3 and the fixed mold 2 are closed, the push rod 7 on the movable plate 6 withdraws from the mold cavity of the fixed mold 2. When the mold is opened, the push rod 7 on the movable plate 6 can push the plastic product out. The plastic product can be automatically pushed out of the mold cavity by the movement of the movable mold 3 when the mold is opened.

[0018] In order to ensure the structural strength and improve the stability when opening and closing the mold, in this embodiment, as a preferred technical solution of the utility model, the fixed column 4, the push rod 7 and the guide column 8 are all set to be several, distributed on the base plate 1, the fixed mold 2 and the movable mold 3, and the edge of the movable plate 6 is slidably connected to the fixed column 4.

[0019] In order to increase the stability of the fixing column 4 , in this embodiment, as a preferred technical solution of the utility model, support parts 9 are provided at the connection points between the two ends of the fixing column 4 and the base plate 1 and the fixed mold 2 respectively.

[0020] In order to ensure cooling efficiency, in this embodiment, as a preferred technical solution of the utility model, a cooling water channel 10 is arranged inside the fixed mold 2, a water inlet 11 is arranged at one end of the cooling water channel 10, and a water outlet 12 is arranged at the other end of the cooling water channel 10.

[0021] In summary, with the help of the above-mentioned technical scheme of the utility model, the movable template of the injection molding machine drives the movable mold 3 and the fixed mold 2 to close the mold, and the injection molding machine injects the molten plastic into the molding cavity in the fixed mold 2 and the movable mold 3, and then injects cooling water from the water inlet 11 into the cooling water channel 10, and exchanges heat with the fixed mold 2 to cool the molten plastic in the mold cavity, and then the movable template of the injection molding machine pulls open the movable mold 3. During the movement of the movable mold 3, the movable plate 6 is pulled by the guide column 8, and the movable plate 6 moves to the side of the fixed mold 2, and then the push rod 7 on the surface of the movable plate 6 pushes the molded plastic product out of the mold cavity.

Claims

1. An injection mold with an anti-deviating structure, comprising a base plate (1), a fixed mold (2) and a movable mold (3), characterized in that: A fixed column (4) is fixed between the base plate (1) and the fixed mold (2), a through hole (5) is provided inside the fixed mold (2), a movable plate (6) is provided at the gap between the base plate (1) and the fixed mold (2), a push rod (7) is provided on the surface of the movable plate (6), the push rod (7) and the through hole (5) correspond one to one, and the push rod (7) passes through the through hole (5), and a guide column (8) is fixed between the movable mold (3) and the movable plate (6), and the guide column (8) passes through the fixed mold (2).

2. The injection mold with an anti-deviating structure according to claim 1, characterized in that: The base plate (1) is fixed on a fixed template of an injection molding machine, and the movable mold (3) is fixed on a movable template of the injection molding machine.

3. The injection mold with an anti-deviating structure according to claim 1, characterized in that: The fixed column (4), the push rod (7) and the guide column (8) are all provided in a plurality and distributed on the base plate (1), the fixed mold (2) and the movable mold (3).

4. The injection mold with an anti-deviating structure according to claim 1, characterized in that: The edge of the movable plate (6) is slidably connected to the fixed column (4).

5. The injection mold with an anti-deviating structure according to claim 1, characterized in that: Support parts (9) are provided at the connection points between the two ends of the fixed column (4) and the base plate (1) and the fixed mold (2).

6. The injection mold with an anti-deviating structure according to claim 1, characterized in that: A cooling water channel (10) is arranged inside the fixed mold (2); a water inlet (11) is arranged at one end of the cooling water channel (10), and a water outlet (12) is arranged at the other end of the cooling water channel (10).

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