Split type mold with cavity structure

Abstract

The utility model relates to the field of dies, in particular to a split type cavity structure die which comprises an outer die, a buckling die is installed on the outer die, a plurality of side edge dies are connected to the buckling die in a sliding mode, the side edge dies form a complete side edge shape, and inner dies are connected among the side edge dies in a sliding mode. An injection molding hole is formed in the bottom of the outer mold; the outer mold is a round inner cavity mold or a rectangular inner cavity mold; a plurality of mounting screws are connected to the buckling mold through threads, and the inner ends of the mounting screws abut against the outer mold; the side edge mold is an arc side plate or a rectangular side plate; the inner molds among the plurality of arc side plates are cylindrical molds, and the inner molds among the plurality of rectangular side plates are rectangular molds; the shape structure of the inner cavity of the cavity mold can be adjusted, and the machining requirements of cavities of different shapes can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the mould field, more specifically, it is a split type cavity structure mould. BACKGROUND

[0002] The cavity mould is also called a female die, is the working part of the outer surface of the formed plastic part, and can be divided into two categories of integral type and combined type according to its structure.It is a mould term in production and manufacturing industry, the part constituting the space of the product is called a forming part, and the part of the outer surface of the formed product is called a cavity mould;In actual cavity processing production, such as the processing process of some barrel bodies, because the shape of the existing mould is fixed, only barrel bodies of fixed size can be processed, so that the corresponding mould of the corresponding structure needs to be replaced every time the processing demand is changed, i.e.a barrel body of a different model is processed, which not only increases the cost, but also affects the processing efficiency. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a split type cavity structure mould, which can adjust the shape structure of the cavity in the cavity mould and meet the processing requirements of cavities of different shapes.

[0004] The utility model discloses a split type cavity structure mould, which realizes the purpose by the following technical scheme.

[0005] A split type cavity structure mould, comprising an outer mould, a buckling mould is installed on the outer mould, a plurality of side edge moulds are slidably connected to the buckling mould, the plurality of side edge moulds form a complete side edge shape, and an inner mould is slidably connected between the plurality of side edge moulds; an injection hole is arranged at the bottom of the outer mould;

[0006] The outer mould is a circular inner cavity mould or a rectangular inner cavity mould;

[0007] A plurality of mounting screws are threadedly connected to the buckling mould, and the inner ends of the mounting screws abut against the outer mould;

[0008] The side edge mould is a circular arc side plate or a rectangular side plate;

[0009] Four circular arc side plates are slidably connected in the circular inner cavity mould, and the four circular arc side plates combine to form a complete side edge circle;

[0010] Four rectangular side plates are slidably connected in the rectangular inner cavity mould, and the four rectangular side plates combine to form a complete side edge rectangle;

[0011] The inner mould between the plurality of circular arc side plates is a cylindrical mould, and the inner mould between the plurality of rectangular side plates is a rectangular mould;

[0012] The outer mould is fixedly connected with a supporting bracket;

[0013] The threaded rods are connected with the support bracket through threads, the lower ends of the threaded rods are rotationally connected to the cylindrical mold or the rectangular mold, and the lower ends of the threaded rods are rotationally connected to eccentric positions of the cylindrical mold.

[0014] The four threaded rods are connected with the support bracket through threads, and the lower ends of the four threaded rods are rotationally connected to the four arc-shaped side plates or the four rectangular side plates.

[0015] The utility model discloses the beneficial effects of:

[0016] By adjusting the height of the inner mold and the side edge mold, the shape of the space formed among the outer mold, the side edge mold and the inner mold is adjusted, and the shape of the cavity formed by injection molding is adjusted, injection molding is carried out from the bottom of the outer mold, the injection material slowly rises from the bottom, and the side edge mold and the inner mold are moved, so that the generation of bubbles is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in detail in connection with the drawings and specific implementation method.

[0018] Figure 1 It is the first embodiment structure schematic diagram of split type cavity structure mold of the utility model,

[0019] Figure 2 It is the first embodiment sectional view of split type cavity structure mold of the utility model,

[0020] Figure 3 It is the structure schematic diagram of the utility model's buckling mold,

[0021] Figure 4 It is the structure schematic diagram of the arc-shaped side plate of the utility model,

[0022] Figure 5 It is the structure schematic diagram of threaded rod A of the utility model,

[0023] Figure 6 It is the second embodiment structure schematic diagram of split type cavity structure mold of the utility model,

[0024] Figure 7 It is the second embodiment sectional view of split type cavity structure mold of the utility model,

[0025] Figure 8 It is the structure schematic diagram of the utility model's buckling mold,

[0026] Figure 9 It is the structure schematic diagram of the rectangular side plate of the utility model,

[0027] Figure 10 It is the structure schematic diagram of threaded rod B of the utility model.

[0028] Figure: circular inner cavity mold 1A; rectangular inner cavity mold 1B; buckle mold 2; cylindrical mold 3A; rectangular mold 3B; circular arc side plate 4A; rectangular side plate 4B; support bracket 5; threaded rod A6; threaded rod B7; mounting screw 8. DETAILED DESCRIPTION

[0029] The utility model will be made further detailed explanation in combination with the drawings.

[0030] As Figures 1 to 5 shown, it is the first embodiment of the utility model, the structure and function of the split type cavity structure mold first embodiment are explained in detail below;

[0031] A split type cavity structure mold, including outer mold, side edge mold and inner mold, the outer mold is circular inner cavity mold 1A, circular inner cavity mold 1A has circular inner cavity body, the bottom of circular inner cavity mold 1A is provided with injection hole, and the buckle mold 2 is installed on the circular inner cavity mold 1A, the mounting screw 8 is connected on the buckle mold 2 by screw thread, and the inner end of the mounting screw 8 is on the side of the circular inner cavity mold 1A, to complete the installation between the circular inner cavity mold 1A and the buckle mold 2;

[0032] The side edge mold is circular arc side plate 4A, and the circular arc side plate 4A is in the shape of circular arc, and the radian of the circular arc side plate 4A is one fourth of a circle, so that the circular arc side plate 4A is provided with four, and the circular arc side plate 4A is 90 ° circular arc, and the four circular arc side plates 4A form a complete circle, here, the number and radian of the circular arc side plate 4A can be set according to the use requirement, for example, the circular arc side plate 4A is provided with three, and the circular arc side plate 4A is 120 ° circular arc, and so on;

[0033] The inner mold is cylindrical mold 3A, the four circular arc side plates 4A are slidably connected in the circular inner cavity mold 1A, the cylindrical mold 3A is slidably connected between the four circular arc side plates 4A, the support bracket 5 is welded on the buckle mold 2, the threaded rod A6 is connected on the support bracket 5 by screw thread, the lower end of the threaded rod A6 is rotatably connected to the non-central position of the cylindrical mold 3A through the bearing with seat, the four threaded rods B7 are connected on the support bracket 5 by screw thread, and the lower ends of the four threaded rods B7 are rotatably connected to the four circular arc side plates 4A through the bearings with seat;

[0034] The circular inner cavity mold 1A, the circular arc side plate 4A and the cylindrical mold 3A are made of metal material, the side surfaces of the circular inner cavity mold 1A, the circular arc side plate 4A and the cylindrical mold 3A are polished, so that the surfaces of the circular inner cavity mold 1A, the circular arc side plate 4A and the cylindrical mold 3A have a certain smooth degree, and the circular inner cavity mold 1A, the circular arc side plate 4A and the cylindrical mold 3A can slide;

[0035] When injection molding, injection material is injected into the circular inner cavity mold 1A through the injection hole. In the initial state, the arc side plate 4A and the cylindrical mold 3A are attached to the bottom inside the circular inner cavity mold 1A. During the process of injecting the injection material into the circular inner cavity mold 1A, the threaded rod A6 drives the cylindrical mold 3A to move upward through the thread, and the threaded rod B7 drives the arc side plate 4A to move upward through the thread. As the injection material increases, the cylindrical mold 3A and the arc side plate 4A gradually move upward, thereby reducing the generation of bubbles. According to the shape formed by processing, the height of the cylindrical mold 3A and the arc side plate 4A is controlled. Here, the height of the cylindrical mold 3A determines the thickness of the bottom of the injection molding cavity, and the height of the arc side plate 4A determines the height of the side of the injection molding cavity. The height of the cylindrical mold 3A and the arc side plate 4A is fixed by the one-way self-locking thread connection. The four arc side plates 4A can be raised to different heights, thereby controlling the shape of the molded injection material. When demolding, the mounting screw 8 is rotated to separate the clamping mold 2 and the circular inner cavity mold 1A, so that the circular inner cavity mold 1A and the arc side plate 4A are separated from the cylindrical mold 3A, and the demolding is completed.

[0036] As shown in Figures 6 to 10 , it is the second embodiment of the utility model, the structure and function of the second embodiment of the split type cavity structure mold will be described in detail below.

[0037] A split type cavity structure mold, comprising an outer mold, a side mold and an inner mold, the outer mold is a rectangular inner cavity mold 1B, the rectangular inner cavity mold 1B has a rectangular inner cavity, the bottom of the rectangular inner cavity mold 1B is provided with an injection hole, the rectangular inner cavity mold 1B is provided with a clamping mold 2, the clamping mold 2 is connected with a mounting screw 8 through a thread, the inner end of the mounting screw 8 is on the side of the rectangular inner cavity mold 1B, thereby completing the installation between the rectangular inner cavity mold 1B and the clamping mold 2.

[0038] The side mold is a rectangular side plate 4B, the rectangular side plate 4B is rectangular, and four rectangular side plates 4B are provided, which form a complete rectangle.

[0039] The inner mold is a rectangular mold 3B, the four rectangular side plates 4B are slidably connected in the rectangular inner cavity mold 1B, the rectangular mold 3B is slidably connected between the four rectangular side plates 4B, the clamping mold 2 is welded with a supporting bracket 5, the supporting bracket 5 is connected with a threaded rod A6 through a thread, the lower end of the threaded rod A6 is rotatably connected to the rectangular mold 3B through a bearing with seat, the supporting bracket 5 is connected with four threaded rods B7 through a thread, and the lower ends of the four threaded rods B7 are rotatably connected to the four rectangular side plates 4B through bearings with seats.

[0040] The rectangular inner cavity mold 1B, the rectangular side plate 4B and the rectangular mold 3B are made of metal material, the side surface of the rectangular inner cavity mold 1B, the rectangular side plate 4B and the rectangular mold 3B is polished, so that the surface of the rectangular inner cavity mold 1B, the rectangular side plate 4B and the rectangular mold 3B has a certain smoothness, so that the rectangular inner cavity mold 1B, the rectangular side plate 4B and the rectangular mold 3B can slide;

[0041] When injection molding, the injection material is injected into the rectangular inner cavity mold 1B through the injection hole. In the initial state, the rectangular side plate 4B and the rectangular mold 3B are attached to the bottom inside the rectangular inner cavity mold 1B. During the process of injecting the injection material into the rectangular inner cavity mold 1B, the threaded rod A6 drives the rectangular mold 3B to move upward through the thread, and the threaded rod B7 drives the rectangular side plate 4B to move upward through the thread. As the injection material increases, the rectangular mold 3B and the rectangular side plate 4B gradually move upward, thereby reducing the generation of bubbles. According to the shape to be processed, the height of the rectangular mold 3B and the rectangular side plate 4B is controlled. Here, the height of the rectangular mold 3B determines the thickness of the bottom of the injection molded cavity, and the height of the rectangular side plate 4B determines the height of the side of the injection molded cavity. The height of the rectangular mold 3B and the rectangular side plate 4B is fixed by using the one-way self-locking of the threaded connection. The four rectangular side plates 4B can be raised to different heights, thereby controlling the shape of the molded injection material. When demolding, the mounting screw 8 is rotated to separate the buckling mold 2 and the rectangular inner cavity mold 1B, so that the rectangular inner cavity mold 1B and the rectangular side plate 4B are separated from the rectangular mold 3B, and the demolding is completed.

Claims

1. A split cavity structure mold comprising an outer mold, characterized by: The outer mold is provided with a buckling mold (2), a plurality of side edge molds are slidably connected to the buckling mold (2), the plurality of side edge molds form a complete side edge shape, an inner mold is slidably connected between the plurality of side edge molds, and the bottom of the outer mold is provided with an injection hole.

2. The split cavity structure mold of claim 1, wherein: The outer mold is a circular inner cavity mold (1A) or a rectangular inner cavity mold (1B).

3. The split cavity structure mold of claim 1, wherein: A plurality of mounting screws (8) are threadedly connected to the buckling mold (2), and inner ends of the mounting screws (8) abut against the outer mold.

4. The split cavity structure mold of claim 2, wherein: The side edge mold is a circular arc side plate (4A) or a rectangular side plate (4B).

5. A split cavity structure mold according to claim 4, wherein: Four circular arc side plates (4A) are slidably connected in the circular inner cavity mold (1A), and the four circular arc side plates (4A) are combined into a complete side edge circle.

6. The split cavity structure mold of claim 4, wherein: Four rectangular side plates (4B) are slidably connected in the rectangular inner cavity mold (1B), and the four rectangular side plates (4B) are combined into a complete side edge rectangle.

7. The split cavity structure mold of claim 4, wherein: The inner mold between the plurality of circular arc side plates (4A) is a cylindrical mold (3A), and the inner mold between the plurality of rectangular side plates (4B) is a rectangular mold (3B).

8. The split cavity structure mold of claim 7, wherein: The outer mold is fixedly connected with a supporting bracket (5).

9. A split cavity structure mold in accordance with claim 8, wherein: A threaded rod A (6) is threadedly connected to the supporting bracket (5), a lower end of the threaded rod A (6) is rotatably connected to the cylindrical mold (3A) or the rectangular mold (3B), and the lower end of the threaded rod A (6) is rotatably connected to an eccentric position of the cylindrical mold (3A).

10. The split cavity structure mold of claim 8, wherein: Four threaded rods B (7) are threadedly connected to the supporting bracket (5), and lower ends of the four threaded rods B (7) are rotatably connected to the four circular arc side plates (4A) or the four rectangular side plates (4B), respectively.

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