Injection mold with core-pulling convenience

Abstract

The utility model discloses a kind of injection mould of core-pulling conveniently, comprising: fixed mould;Movable mould, movable mould is placed in the side of fixed mould, the inside of movable mould is fixedly connected with guiding slide, the beneficial effects of the utility model are as follows: by being provided with inclined guide rod, inclined type and core-pulling slider, when movable mould is close to the side of fixed mould, the position of inclined guide rod is fixed, core-pulling slider is guided by inclined guide rod and is limited to slide in the inside of guiding slide, by core-pulling slider driving forming block to move, by forming block passing through mouth, by forming block to the side core-pulling processing of forming piece, by being provided with second air cylinder, inner sliding plate and pull rod, the output end of second air cylinder drives inner sliding plate and pull rod to move, pull rod leaves forming piece in fixed mould and movable mould, complete core-pulling work.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold that facilitates core pulling. Background Technology

[0002] Injection molds are tools used to produce plastic products, giving them a complete structure and precise dimensions. They are created by injecting molten plastic under high pressure into a mold cavity using an injection molding machine, followed by cooling and solidification to obtain the molded product. As market demand for plastic products becomes increasingly diversified, the shapes and structures of products are becoming more complex. For products with features such as side holes and grooves, core-pulling is required. However, existing injection molds are prone to jamming and vibration during core-pulling, which not only leaves obvious marks on the product surface, affecting its appearance quality, but may also lead to deformation and misalignment of the internal structure. Utility Model Content

[0003] The purpose of this utility model is to provide an injection mold that facilitates core pulling, so as to solve the problem mentioned in the background art that existing injection molds are prone to jamming and shaking during core pulling, which not only leaves obvious marks on the product surface and affects the appearance quality of the product, but may also cause deformation and misalignment of the internal structure of the product.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for convenient core pulling, comprising:

[0005] Fixed mold;

[0006] A moving mold is placed on one side of a fixed mold, and a guide slide is fixedly connected inside the moving mold;

[0007] A core-pulling slider is slidably disposed inside the guide slide, and a molding block is provided on one side of the core-pulling slider;

[0008] The beveled opening is located inside the core-pulling slider;

[0009] An inclined guide rod is slidably disposed on the inside of the inclined through-hole, and one end of the inclined guide rod is fixedly connected to the fixed mold.

[0010] A fixed side box is provided on one side of a fixed mold. An inner sliding plate is slidably provided inside the fixed side box. A pull rod is symmetrically fixed to one side of the inner sliding plate and is slidably connected to the fixed mold.

[0011] Ejector pins are equidistantly slidably positioned inside the moving mold.

[0012] As a preferred embodiment of this utility model, it further includes a side fixing seat, which is fixedly connected to one side of the moving mold. A top plate is slidably provided on the inner side of the side fixing seat. One end of each of the plurality of ejector pins is connected to the top plate. A first cylinder is installed on one side of the side fixing seat, and the output end of the first cylinder is fixedly connected to the top plate.

[0013] As a preferred embodiment of this utility model: an outer limiting slider is symmetrically fixed to the outer side of the inner sliding plate, the outer limiting slider is slidably connected to the fixed side box, a limiting rod is slidably provided inside the outer limiting slider, one end of the limiting rod is fixedly connected to the fixed mold, the other end of the limiting rod is fixedly connected to a fixed plate, the fixed plate is fixedly connected to the fixed side box, a second cylinder is installed on one side of the fixed side box, and the output end of the second cylinder is fixedly connected to the inner sliding plate.

[0014] As a preferred embodiment of this utility model: an injection port is provided on one side of the fixed mold, and an injection flow channel is provided inside the fixed mold, the injection flow channel being connected to the injection port.

[0015] As a preferred embodiment of this utility model: a plurality of guide rods are symmetrically fixed to one side of the fixed mold, a plurality of guide sleeves that cooperate with the guide rods are symmetrically fixed to the inside of the moving mold, and a side fixed top frame is fixed to one side of the side fixed seat.

[0016] As a preferred embodiment of this utility model: an inner fixed mold base is fixedly connected inside the moving mold, and the inner fixed mold base has an opening inside that cooperates with the molding block.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up an inclined guide rod, an inclined through-hole, and a core-pulling slider, this utility model achieves the following: when the moving mold moves towards the fixed mold, the position of the inclined guide rod is fixed, the core-pulling slider is guided by the inclined guide rod and limited to sliding inside the guide slide, the core-pulling slider drives the molding block to move, the molding block passes through the through-hole, and the molding block performs side core-pulling processing on the molded part. By setting up a second cylinder, an inner sliding plate, and a pull rod, the output end of the second cylinder drives the inner sliding plate and the pull rod to move, and the pull rod leaves the molded part in the fixed mold and the moving mold, completing the core-pulling work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the fixed side box of this utility model;

[0020] Figure 3 This is a bottom view of the present invention;

[0021] Figure 4This is a schematic diagram of the internal structure of the core-pulling slider of this utility model;

[0022] Figure 5 This is a schematic diagram of the mold and injection flow channel structure of this utility model.

[0023] In the diagram: 1. Fixed mold; 2. Injection port; 3. Moving mold; 4. Guide rod; 5. Guide sleeve; 6. Side fixed seat; 7. Side fixed ejector; 8. Cylinder No. 1; 9. Inner fixed mold base; 10. Ejector pin; 11. Through-hole; 12. Guide slide; 13. Core-pulling slider; 14. Angled guide rod; 15. Molding block; 16. Fixed side box; 17. Cylinder No. 2; 18. Inner sliding plate; 19. Outer limit slider; 20. Limiting rod; 21. Fixed plate; 22. Pull rod; 23. Angled through-hole; 24. Top plate; 25. Injection runner. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 5 This utility model provides a technical solution: an injection mold for easy core pulling, comprising: a fixed mold 1; a movable mold 3 placed on one side of the fixed mold 1, with a guide slide 12 fixedly connected inside the movable mold 3; a core-pulling slider 13 slidably disposed inside the guide slide 12, with a molding block 15 fixedly connected to one side of the core-pulling slider 13; an inclined through-hole 23 opened inside the core-pulling slider 13; an inclined guide rod 14 slidably disposed inside the inclined through-hole 23, with one end of the inclined guide rod 14 fixedly connected to the fixed mold 1; a fixed side box 16 fixedly connected to one side of the fixed mold 1, with an inner sliding plate 18 slidably disposed inside the fixed side box 16, and a pull rod 22 symmetrically fixedly connected to one side of the inner sliding plate 18, the pull rod 22 being slidably connected to the fixed mold 1; and ejector pins 10 equidistantly slidably disposed inside the movable mold 3.

[0026] It should be noted that in this embodiment, the output end of the external hydraulic cylinder is connected to the side fixed top frame 7. The side fixed top frame 7 drives the side fixed seat 6 and the moving mold 3 to move and adjust as a whole. The moving mold 3 and the fixed mold 1 close together. At the same time as the mold closes, the moving mold 3 drives the guide slide 12 and the core-pulling slider 13 to move. The inclined through-hole 23 in the core-pulling slider 13 slides and is limited by the inclined guide rod 14. The core-pulling slider 13 slides and is limited inside the guide slide 12. The molding block 15 on one side of the core-pulling slider 13 enters the through-hole 11 in the inner fixed mold base 9 and is injected into the injection channel 25 through the injection port 2. The molding process is completed by the fixed mold 1 and the moving mold 3. After molding, the output end of cylinder 17 drives the inner sliding plate 18 and the pull rod 22 to move outward. The pull rod 22 leaves the fixed mold 1. When the inner sliding plate 18 moves, it drives the outer limit slider 19 to slide outside the limit rod 20. The pull rod 22 leaves the molded part. Then the moving mold 3 and the side fixed seat 6 move away from the fixed mold 1. The inclined through-hole 23 in the core-pulling slider 13 slides with the inclined guide rod 14. The core-pulling slider 13 moves outward. The core-pulling slider 13 drives the molding block 15 to move and pull the core. The output end of cylinder 8 drives the top plate 24 and the ejector pin 10 to move. The ejector pin 10 ejects the molded part in the moving mold 3 for easy removal.

[0027] In one embodiment, such as Figures 1 to 5 As shown, it also includes a side fixing seat 6, which is fixedly connected to one side of the moving mold 3. A top plate 24 is slidably arranged on the inner side of the side fixing seat 6. One end of a plurality of ejector pins 10 is connected to the top plate 24. A first cylinder 8 is installed on one side of the side fixing seat 6, and the output end of the first cylinder 8 is fixedly connected to the top plate 24.

[0028] It should be noted that in this embodiment, the output end of the first cylinder 8 drives the top plate 24 to slide inside the side fixed seat 6, and the top plate 24 drives each ejector pin 10 to move. The ejector pin 10 ejects the molded part inside the moving mold 3, making it convenient to remove the molded part.

[0029] In one embodiment, such as Figures 1 to 5 As shown, an outer limiting slider 19 is symmetrically fixed to the outer side of the inner sliding plate 18. The outer limiting slider 19 is slidably connected to the fixed side box 16. A limiting rod 20 is slidably provided inside the outer limiting slider 19. One end of the limiting rod 20 is fixedly connected to the fixed mold 1, and the other end of the limiting rod 20 is fixedly connected to a fixed plate 21. The fixed plate 21 is fixedly connected to the fixed side box 16. A second cylinder 17 is installed on one side of the fixed side box 16. The output end of the second cylinder 17 is fixedly connected to the inner sliding plate 18.

[0030] It should be noted that in this embodiment, the output end of the second cylinder 17 drives the inner sliding plate 18 to slide within the fixed side box 16, and the inner sliding plate 18 drives the pull rod 22 to move, thus completing the core pulling operation.

[0031] In one embodiment, such as Figures 1 to 5 As shown, an injection port 2 is provided on one side of the fixed mold 1, and an injection runner 25 is provided inside the fixed mold 1, which is connected to the injection port 2.

[0032] It should be noted that in this embodiment, the injection port 2 is connected to an external feeding device, which enters the fixed mold 1 and the moving mold 3 through the injection channel 25 for molding.

[0033] In one embodiment, such as Figures 1 to 5 As shown, a number of guide rods 4 are symmetrically fixed to one side of the fixed mold 1, a number of guide sleeves 5 that cooperate with the guide rods 4 are symmetrically fixed to the inside of the moving mold 3, and a side fixed top bracket 7 is fixed to one side of the side fixed seat 6.

[0034] It should be noted that in this embodiment, the output end of the external hydraulic cylinder device of the side fixed top frame 7 drives the side fixed top frame 7, the side fixed seat 6 and the moving mold 3 to move as a whole through the output end of the hydraulic cylinder to complete the mold closing and mold opening work.

[0035] In one embodiment, such as Figures 1 to 5 As shown, an inner fixed mold base 9 is fixedly connected inside the moving mold 3, and an opening 11 that mates with the molding block 15 is provided inside the inner fixed mold base 9.

[0036] It should be noted that in this embodiment, the molding block 15 passes through the through-hole 11, and the molded part is inside the fixed mold 1, the moving mold 3 and the inner fixed mold base 9. The core-pulling slider 13 moves and drives the molding block 15 to move, thus completing the core-pulling operation.

[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection mold for easy core pulling, characterized in that, include: Fixed mold (1); The moving mold (3) is placed on one side of the fixed mold (1), and a guide slide (12) is fixedly connected inside the moving mold (3); The core-pulling slider (13) is slidably disposed inside the guide slide (12), and a molding block (15) is provided on one side of the core-pulling slider (13). An oblique through-hole (23) is formed inside the core-pulling slider (13); An inclined guide rod (14) is slidably disposed inside the inclined through-hole (23), and one end of the inclined guide rod (14) is fixedly connected to the fixed mold (1). A fixed side box (16) is provided on one side of the fixed mold (1). An inner sliding plate (18) is slidably provided inside the fixed side box (16). A pull rod (22) is symmetrically fixed on one side of the inner sliding plate (18). The pull rod (22) is slidably connected to the fixed mold (1). Ejector pins (10) are equidistantly slidably disposed inside the moving mold (3).

2. The injection mold for convenient core pulling according to claim 1, characterized in that: It also includes a side fixing seat (6), which is fixedly connected to one side of the moving mold (3). A top plate (24) is slidably provided on the inner side of the side fixing seat (6). One end of each of the multiple ejector pins (10) is connected to the top plate (24). A cylinder (8) is installed on one side of the side fixing seat (6), and the output end of the cylinder (8) is fixedly connected to the top plate (24).

3. The injection mold for convenient core pulling according to claim 1, characterized in that: The outer side of the inner sliding plate (18) is symmetrically fixed with an outer limiting slider (19), the outer limiting slider (19) is slidably connected to the fixed side box (16), the inner side of the outer limiting slider (19) is slidably provided with a limiting rod (20), one end of the limiting rod (20) is fixedly connected to the fixed mold (1), the other end of the limiting rod (20) is fixedly connected to a fixing plate (21), the fixing plate (21) is fixedly connected to the fixed side box (16), a second cylinder (17) is installed on one side of the fixed side box (16), and the output end of the second cylinder (17) is fixedly connected to the inner sliding plate (18).

4. The injection mold for convenient core pulling according to claim 1, characterized in that: The fixed mold (1) has an injection port (2) on one side, and an injection flow channel (25) is provided inside the fixed mold (1). The injection flow channel (25) is connected to the injection port (2).

5. The injection mold for convenient core pulling according to claim 2, characterized in that: Multiple guide rods (4) are symmetrically fixed to one side of the fixed mold (1), and multiple guide sleeves (5) that cooperate with the guide rods (4) are symmetrically fixed inside the moving mold (3). A side fixed top frame (7) is fixed to one side of the side fixed seat (6).

6. The injection mold for convenient core pulling according to claim 1, characterized in that: The moving mold (3) is fixedly connected to an inner fixed mold base (9), and the inner fixed mold base (9) has an opening (11) that mates with the molding block (15).

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