Continuous production structure of insert injection mold

Abstract

The utility model discloses an insert injection mold continuous production structure, and relates to the technical field of insert injection molding, the insert injection mold continuous production structure comprises a shell, a first insert and a second insert; the first insert is arranged on the shell in a sliding mode in the first direction, a flow channel is formed in the first insert, an inclined first driving face is formed on the first insert, the second insert is detachably connected to the shell, a cavity communicated with the flow channel is formed between the first insert and the second insert, and the cavity is used for containing an insert and a formed product; the sliding block is arranged on the shell in a sliding mode in the second direction, an inclined second driving face is formed on the sliding block, the second driving face is at least partially attached to the first driving face, and the first direction is perpendicular to the second direction; when the sliding block moves, the first insert moves in the direction close to or away from the second insert. The method has the effect of reducing the processing cost of insert injection molding.

Description

Technical Field

[0001] This application relates to the technical field of insert injection molding, and in particular to a continuous production structure for an insert injection mold. Background Art

[0002] Insert injection molding is an advanced manufacturing technology that combines the easy processability of plastics with the rigidity, strength, and heat resistance of other materials such as metals to produce complex and delicate integrated metal-plastic products. This technology involves pre-fixing inserts in an injection mold and then injecting plastic, so that the inserts are tightly wrapped by the cooled and solidified plastic, thereby obtaining products with inserts such as threads and electrodes.

[0003] The advantages of insert injection molding include improving the flexibility of product design, reducing the size and weight of products, using the combination of the insulation of plastics and the conductivity of metals to meet the basic functions of electrical products, and avoiding secondary processes, shortening the assembly time and cost. In addition, the inserts are not limited to metals and can also be various materials such as cloth, paper, wires, plastics, glass, and wood.

[0004] Insert injection molding is widely used in industries such as automotive, medical, electronic products, and connectors. When designing insert injection molding, it is necessary to consider the selection of insert materials, insert shapes, the placement and positioning of inserts, the design of insert bosses, the spacing between inserts and the product side walls, and the fixing methods of inserts.

[0005] However, insert injection molding also has some disadvantages. For example, the placement of inserts may complicate the mold structure. When the size of the inserts is changed, the inserts need to be replaced correspondingly, thereby increasing the manufacturing cost and the difficulty of automated production. Summary of the Utility Model

[0006] In order to reduce the processing cost of insert injection molding, this application provides a continuous production structure for an insert injection mold.

[0007] This application provides a continuous production structure for an insert injection mold, adopting the following technical solutions:

[0008] A continuous production structure for an insert injection mold includes:

[0009] A housing, a first insert, and a second insert;

[0010] The first insert is slidably disposed in the housing along a first direction. The first insert is provided with a runner. The first insert forms an inclined first driving surface. The second insert is detachably connected to the housing. A cavity communicating with the runner is formed between the first insert and the second insert. The cavity is used for placing inserts and molding products;

[0011] The slider is slidably disposed on the housing along a second direction. The slider is formed with an inclined second driving surface, and at least a part of the second driving surface is in contact with the first driving surface. The first direction is perpendicular to the second direction.

[0012] When the slider moves, the first insert moves in a direction approaching or departing from the second insert.

[0013] By adopting the above technical solution, this modular design allows, without replacing the entire mold, adapting to inserts of different sizes by replacing or adjusting the second insert. And the slider can drive the first insert to move into contact with the second insert through movement, so that the first insert and different second inserts can both form a cavity, thereby reducing the production cost, improving the production efficiency and the adaptability of the mold.

[0014] Optionally, the housing is provided with a movable mold and a fixed mold that can be mutually fastened. The first insert is disposed on the fixed mold, and the second insert is disposed on the movable mold. The movable mold is movably provided with a sealing portion for sealing the runner.

[0015] By adopting the above technical solution, the movable mold is movably provided with a sealing portion, and the function of this sealing portion is to seal the runner, preventing the molten plastic from leaking during the injection process and ensuring that the plastic can be smoothly and accurately filled into the cavity.

[0016] Optionally, the sealing portion is connected to the fixed mold through a first elastic member.

[0017] By adopting the above technical solution, the sealing portion in the continuous production structure of the insert injection mold is connected to the fixed mold through a first elastic member. This design allows the sealing portion to maintain its position and function when the first insert moves, while providing the necessary elastic support to ensure that the sealing portion can be effectively connected to the fixed mold and play its role.

[0018] Optionally, the slider is provided with a first relief hole for exposing the gate of the runner and allowing the sealing portion to penetrate into and out of the cavity.

[0019] By adopting the above technical solution, during the closing and opening of the mold, the sealing portion needs to move, and the first relief hole provides the necessary space for it to ensure that the sealing portion can correctly penetrate into and out of the cavity and avoid damaging the molded product.

[0020] Optionally, a positioning groove for positioning the insert is provided inside the second insert. The second insert is provided with a second relief hole, and the movable mold is provided with a fixing portion corresponding to the second relief hole. The fixing portion is slidably connected to the movable mold and is used to jointly fix the insert with the inner wall of the positioning groove.

[0021] By adopting the above technical solution, the replacement of the second insert does not affect the common fixation of the insert by the fixing part and the inner wall of the positioning groove, so there is no need to replace different fixing parts to adapt to different inserts, and the cost is further reduced without affecting production.

[0022] Optionally, the fixing part is connected to the moving die through a second elastic member.

[0023] By adopting the above technical solution, through the connection of the second elastic member, the connection between the fixing part and the moving die can be ensured to be more stable, avoiding displacement or loosening during the injection molding process, and the cost of the second elastic member is relatively low.

[0024] Optionally, a driving member is installed on the housing, and the output end of the driving member is fixedly connected to the slider.

[0025] Optionally, the driving member is a cylinder.

[0026] In summary, the present application includes at least one of the following beneficial effects:

[0027] 1. This modular design allows different-sized inserts to be adapted by replacing or adjusting the second insert without replacing the entire mold, and the slider can drive the first insert to move and fit with the second insert through movement, so that the first insert and different second inserts can all form a cavity, thereby reducing the production cost, improving the production efficiency and the adaptability of the mold;

[0028] 2. A sealing part is arranged on the moving die, and the function of this sealing part is to seal the runner, prevent the molten plastic from leaking during the injection process, and ensure that the plastic can be filled into the cavity smoothly and accurately;

[0029] 3. The replacement of the second insert does not affect the common fixation of the insert by the fixing part and the inner wall of the positioning groove, so there is no need to replace different fixing parts to adapt to different inserts, and the cost is further reduced without affecting production. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of the present application for showing the insert;

[0031] Figure 2 is a schematic overall structural diagram of an embodiment of the present application;

[0032] Figure 3 is a partial structural diagram of an embodiment of the present application for showing the cooperation relationship between the first driving surface and the second driving surface;

[0033] Figure 4 is an exploded structural diagram of an embodiment of the present application for showing the first elastic member;

[0034] Figure 5 This is a partial structural schematic diagram of the second elastic member used in the embodiments of the present application.

[0035] Explanation of reference numerals: 2, insert; 3, first insert; 4, runner; 5, first driving surface; 6, second insert; 7, slider; 8, second driving surface; 9, moving mold; 10, sealing part; 11, first elastic member; 12, first relief hole; 13, positioning groove; 14, second relief hole; 15, fixing part; 16, second elastic member; 17, driving member. Specific embodiments

[0036] Insert injection molding is an advanced manufacturing technology that combines the easy processability of plastics with the rigidity, strength, and heat resistance of other materials such as metals to manufacture complex and delicate integrated metal-plastic products. In this technology, the insert 2 is pre-fixed in the injection mold, and then plastic is injected, so that the insert 2 is tightly wrapped by the cooled and solidified plastic, thereby obtaining products with inserts 2 such as threads and electrodes.

[0037] The advantages of insert injection molding include improving the flexibility of product design, reducing the size and weight of products, using the combination of the insulation of plastics and the conductivity of metals to meet the basic functions of electrical products, and avoiding secondary processes, shortening the assembly time and cost. In addition, the insert 2 is not limited to metals, but can also be various materials such as cloth, paper, wires, plastics, glass, and wood.

[0038] Insert injection molding is widely used in industries such as automotive, medical, electronic products, and connectors. When designing insert injection molding, it is necessary to consider the selection of insert materials, insert shapes, the placement and positioning of inserts, the design of insert bosses, the spacing between the insert 2 and the product side wall, and the fixing method of the insert 2.

[0039] However, insert injection molding also has some disadvantages. For example, the placement of the insert 2 may complicate the mold structure. When the size of the insert 2 is changed, the inserts need to be replaced correspondingly, thereby increasing the manufacturing cost and the difficulty of automated production.

[0040] Referring to the attached Figure 1 , in the embodiments of the present application, the shape of the insert 2 is circular.

[0041] The following further describes the present application in detail with reference to the attached Figures 2 - 5

[0042] A continuous production structure of an insert 2 injection mold disclosed in the embodiments of the present application, referring to Figure 2 and Figure 3, The continuous production structure of the insert 2 injection mold includes a housing, a moving mold 9, and a fixed mold. The first direction is perpendicular to the moving mold 9, that is, the direction of the connection line between the moving mold 9 and the fixed mold, and the second direction is set perpendicular to the first direction. For the convenience of the examiner's understanding and to show the improved structure, the housing and the fixed mold are not shown in the attached Figures 2 - 5 figure.

[0043] Refer to Figure 2 and Figure 3 , The fixed mold is fixedly connected to the housing. The fixed mold is slidably connected with a first insert 3 in the first direction. The first insert 3 is provided with a runner 4. The main body shape of the first insert 3 is a cylindrical shape with a cavity inside. One end face of the first insert 3 away from the moving mold 9 is named the first driving surface 5, and the first driving surface 5 is inclined in the first direction. The housing is equipped with a driving member 17. The driving member 17 is a cylinder. The output end of the driving member 17 is slidably connected to the fixed mold in the second direction. The output end of the driving member 17 is fixedly connected with a slider 7, so that the slider 7 is slidably connected to the fixed mold through the output end of the driving member 17. The slider 7 is arranged on the side of the first insert 3 away from the moving mold 9. One end face of the slider 7 facing the first insert 3 is named the second driving surface 8, and the second driving surface 8 is inclined in the first direction and at least partially fits with the first driving surface 5.

[0044] Refer to Figure 4 , The first insert 3 is provided with a first relief hole 12, so that the fluid can enter the gate of the runner 4 through the first relief hole 12. The fixed mold is slidably connected with a sealing part 10 in the first direction. The sealing part 10 corresponds to the runner 4 and can penetrate into and out of the first relief hole 12. A first elastic member 11 is connected between the sealing part 10 and the fixed mold. The first elastic member 11 is a spring. When the fixed mold and the moving mold 9 are buckled, the inner walls of the fixed mold, the sealing part 10, the first insert 3, and the first relief hole 12 jointly seal the runner 4 to prevent the molten plastic from leaking during the injection process and ensure that the plastic can be filled into the cavity smoothly and accurately.

[0045] Refer to Figure 4 and Figure 5 , The moving mold 9 is detachably connected with a second insert 6 by bolts. The main body of the second insert 6 is cylindrical. The second insert 6 is provided with a positioning groove 13 for placing the insert 2 and forming the cavity and a second relief hole 14 communicating with the positioning groove 13. The second relief hole 14 is opened on the side wall of the second insert 6 along a direction perpendicular to the first direction. The positioning groove 13 and the cavity of the first insert 3 jointly form the cavity. The runner 4 is communicated with the cavity through the gate. The moving mold 9 is slidably connected with a sealing part 10. The sealing part 10 can fit with the inner wall of the second relief hole 14 to seal the second relief hole 14. A second elastic member 16 is connected between the sealing part 10 and the moving mold 9. The second elastic member 16 is a spring.

[0046] When it is necessary to replace different inserts 2, first remove the second insert 6 from the moving die 9. Then, fix the new second insert 6 to the moving die 9 with bolts. After that, position the new insert 2 in the positioning groove 13. Under the elastic force of the second elastic member 16, the sealing portion 10 penetrates into the second relief hole 14 and jointly clamps the insert 2 with the inner wall of the positioning groove 13. Then, the moving die 9 moves towards the fixed die, and the driving member 17 drives the slider 7 to move. Due to the cooperation relationship between the first driving surface 5 and the second driving surface 8, the first insert 3 moves towards or away from the second insert 6 until it fits with the second insert 6, so that the cavity of the first insert 3 and the positioning groove 13 form a cavity, and then pouring is carried out.

[0047] This modular design in which the second insert 6 is detachably connected to the moving die 9 allows, without replacing the entire mold, adapting to inserts 2 of different sizes by replacing or adjusting the second insert 6. Moreover, the slider 7 can drive the first insert 3 to move until it fits with the second insert 6 through movement, so that the first insert 3 can form a cavity with different second inserts 6, thereby reducing production costs, improving production efficiency and the adaptability of the mold.

[0048] In the insert 2 injection mold continuous production structure, the sealing portion 10 is connected to the fixed die through the first elastic member 11. This design allows the sealing portion 10 to maintain its position and function when the first insert 3 moves, while providing the necessary elastic support to ensure that the sealing portion 10 can be effectively connected to the fixed die and play its role.

[0049] During the closing and opening of the mold, the sealing portion 10 needs to move, and the first relief hole 12 provides the necessary space to ensure that the sealing portion 10 can correctly penetrate and exit, avoiding damage to the molded product.

[0050] The replacement of the second insert 6 does not affect the joint fixation of the insert 2 by the fixing portion 15 and the inner wall of the positioning groove 13, so there is no need to replace different fixing portions 15 to adapt to different inserts 2, further reducing costs without affecting production.

[0051] Through the connection of the second elastic member 16, it can be ensured that the connection between the fixing portion 15 and the moving die 9 is more stable, avoiding displacement or loosening during the injection process, and the cost of the second elastic member 16 is relatively low.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A continuous production structure of an insert injection mold, characterized in that: include: A housing, a first insert (3) and a second insert (6); The first insert (3) is slidably arranged on the housing along a first direction, the first insert (3) is provided with a flow channel (4), the first insert (3) is formed with an inclined first driving surface (5), the second insert (6) is detachably connected to the housing, a cavity is formed between the first insert (3) and the second insert (6) and is communicated with the flow channel (4), the cavity being used to place the insert (2) and the molded product; A slider (7) is slidably disposed on the housing along a second direction, the slider (7) being formed with an inclined second driving surface (8), the second driving surface (8) being at least partially in contact with the first driving surface (5), and the first direction being perpendicular to the second direction; When the slider (7) moves, the first insert (3) moves towards or away from the second insert (6).

2. The insert injection mold continuous production structure according to claim 1, characterized in that: The housing is provided with a movable mold (9) and a fixed mold that can be engaged with each other, the first insert (3) is provided on the fixed mold, the second insert (6) is provided on the movable mold (9), and the movable mold (9) is movably provided with a sealing portion (10), and the sealing portion (10) is used to seal the flow channel (4).

3. The insert injection mold continuous production structure according to claim 2, characterized in that: The sealing portion (10) is connected to the fixed mold via a first elastic member (11).

4. The insert injection mold continuous production structure according to claim 2, characterized in that: The slider (7) is provided with a first clearance hole (12), and the first clearance hole (12) is used to expose the gate of the runner (4) and the sealing part (10) to penetrate into and out of the cavity.

5. The insert injection mold continuous production structure according to claim 2, characterized in that: A positioning groove (13) for positioning the insert (2) is arranged inside the second insert (6), a second clearance hole (14) is opened on the second insert (6), and a fixing portion (15) is arranged on the movable mold (9) corresponding to the second clearance hole (14), the fixing portion (15) is slidably connected to the movable mold (9), and the fixing portion (15) is used to fix the insert (2) together with the inner wall of the positioning groove (13).

6. The insert injection mold continuous production structure according to claim 5, characterized in that: The fixing portion (15) is connected to the movable mold (9) via a second elastic member (16).

7. The insert injection mold continuous production structure according to claim 1, characterized in that: The housing is mounted with a driving member (17), and an output end of the driving member (17) is fixedly connected to the slider (7).

8. The insert injection mold continuous production structure according to claim 7, characterized in that: The driving member (17) is a cylinder.

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