A fully encapsulated injection mold

Abstract

The utility model discloses a kind of injection mould of full sealing, including base, the fixed installation of fixed mould is positioned on the base upper end surface, the fixed installation of two buffer frames is positioned on the base upper end surface, two the buffer frame upper end surface is uniformly fixed with the sliding sleeve of installation, two the sliding sleeve inside is uniformly slidably penetrated and installed with buffer rod, two the buffer rod outer wall is uniformly fixed with the limiting plate of installation, two the buffer rod end portion is commonly fixed and connected with buffer plate, the buffer plate bottom wall is connected with two buffer frame upper end surface by buffer mechanism, the base upper end surface is rotatably installed with screw rod by support frame.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a fully sealed injection mold. Background Technology

[0002] Injection molds are the core equipment in the injection molding process. They consist of a fixed mold and a moving mold forming a closed cavity. Molten plastic is injected into the cavity by the injection molding machine, and after cooling and solidification, it forms a plastic product with a specific structure and size.

[0003] In the injection molding process, the sealing performance of the injection mold has a crucial impact on product quality. Traditional injection molds often suffer from insufficient tightness and lack of effective sealing structures during mold closing, leading to leakage between the mold interior and the outside environment. This not only affects the molding quality of the product and wastes raw materials but may also shorten the mold's lifespan. Furthermore, the impact forces between the various components of the mold are significant during mold closing and opening, which can easily lead to component damage over time, reducing the mold's stability and safety. Therefore, it is necessary to redesign a fully sealed injection mold to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fully sealed injection mold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fully sealed injection mold includes a base, a fixed mold is fixedly mounted on the upper surface of the base, two buffer frames are fixedly mounted on the upper surface of the base, a sliding sleeve is fixedly mounted on the upper surface of each of the two buffer frames, a buffer rod is slidably installed through the interior of each of the two sliding sleeves, a limit plate is fixedly mounted on the outer wall of each of the two buffer rods, and a buffer plate is fixedly connected to the ends of the two buffer rods. The bottom wall of the buffer plate is connected to the upper surface of the two buffer frames through a buffer mechanism. A screw is rotatably mounted on the upper surface of the base through a support frame, and the upper surface of the support frame is fixedly mounted... A motor connected to a screw is fixedly installed. A movable block is rotatably mounted on the outer wall of the screw via a limiting mechanism. A moving mold is fixedly connected to the outer wall of the movable block via a connecting mechanism. A lower pressure plate is fixedly connected to both outer walls of the moving mold via a connecting mechanism. A sealing gasket is fixedly installed on the inner top wall of the moving mold. A sealing groove that mates with the sealing gasket is opened on the upper end face of the fixed mold. Two guide rods are fixedly installed on the upper end face of the base. Guide sleeves are fixedly installed on both outer walls of the moving mold via mounting plates. The two guide rods slide through the guide sleeves on the same side.

[0007] Preferably, the buffer mechanism includes buffer springs installed on the outer walls of two buffer rods, with the two ends of the two buffer springs elastically connected to the upper end face of the buffer frame and the bottom wall of the buffer plate on the same side, respectively.

[0008] Preferably, the limiting mechanism includes a limiting rod fixedly installed inside the support frame, and the limiting rod slides through the moving block.

[0009] Preferably, the connecting mechanism includes a connecting rod fixedly installed on the outer wall of the moving block, and the end of the connecting rod is fixedly connected to the upper end face of the moving mold.

[0010] Preferably, the connecting mechanism includes connecting plates fixedly installed on the outer walls of both sides of the moving mold, and the ends of both connecting plates are fixedly connected to the upper surface of the lower pressure plate.

[0011] The beneficial effects of this utility model are:

[0012] 1. By setting components such as sealing gaskets, guide rods, and guide sleeves, the sealing performance and mold closing accuracy are improved. When the mold is closed, the sealing gasket is embedded in the sealing groove, which fits tightly to prevent molten material from overflowing and solves the problem of glue leakage. The guide rods and guide sleeves work together to guide the moving mold, ensuring accurate mold closing and avoiding sealing failure due to deviation, thus enhancing the reliability of the seal.

[0013] 2. By setting up components such as a lower pressure plate, buffer plate, buffer rod and buffer spring, the impact force of mold closing and opening is mitigated. When the mold closes, the lower pressure plate transmits the force to the buffer spring. The spring deformation absorbs energy, slows down and prevents collision. When the mold opens, the spring resets and also plays a buffering role. This structure reduces component wear and deformation, reduces the probability of damage, improves stability and safety, and reduces maintenance costs and downtime. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a fully sealed injection mold proposed in this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;

[0016] Figure 3 This is a side view of a fully sealed injection mold proposed in this utility model.

[0017] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0018] Figure 5 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.

[0019] In the diagram: 1. Base, 2. Fixed mold, 3. Buffer frame, 4. Sliding sleeve, 5. Buffer rod, 6. Limiting plate, 7. Buffer plate, 8. Buffer spring, 9. Support frame, 10. Screw, 11. Motor, 12. Limiting rod, 13. Moving block, 14. Connecting rod, 15. Moving mold, 16. Connecting plate, 17. Lower pressure plate, 18. Sealing gasket, 19. Guide rod, 20. Mounting plate, 21. Guide sleeve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-5 A fully sealed injection mold includes a base 1, a fixed mold 2 fixedly mounted on the upper surface of the base 1, two buffer frames 3 fixedly mounted on the upper surface of the base 1, a sliding sleeve 4 fixedly mounted on the upper surface of each of the two buffer frames 3, a buffer rod 5 slidably inserted through the interior of each of the two sliding sleeves 4, a limit plate 6 fixedly mounted on the outer wall of each of the two buffer rods 5, and a buffer plate 7 fixedly connected to the ends of the two buffer rods 5. The bottom wall of the buffer plate 7 is connected to the upper surface of the two buffer frames 3 through a buffer mechanism. A screw 10 is rotatably mounted on the upper surface of the base 1 through a support frame 9, and a screw 10 is fixedly mounted on the upper surface of the support frame 9. The motor 11 connected to the screw 10 has a moving block 13 installed on its outer wall via a limit mechanism. The moving block 13 is fixedly connected to the moving mold 15 via a connecting mechanism. The outer walls of the moving mold 15 are fixedly connected to the lower pressure plate 17 via a connecting mechanism. The inner top wall of the moving mold 15 is fixedly installed with a sealing gasket 18. The upper end face of the fixed mold 2 has a sealing groove that matches the sealing gasket 18. The upper end face of the base 1 is fixedly installed with two guide rods 19. The outer walls of the moving mold 15 are fixedly installed with guide sleeves 21 via mounting plates 20. The two guide rods 19 slide through the guide sleeves 21 on the same side.

[0022] Furthermore, these structures work together to provide a stable basic framework for mold closing and buffering. The sliding fit between the guide rod 19 and the guide sleeve 21 can effectively prevent the moving mold 15 from shifting during movement, ensuring the accuracy of mold closing.

[0023] The buffer mechanism includes buffer springs 8 installed on the outer walls of two buffer rods 5. The two ends of the two buffer springs 8 are elastically connected to the upper end face of the buffer frame 3 and the bottom wall of the buffer plate 7 on the same side, respectively.

[0024] Furthermore, the elastic characteristics of the buffer spring 8 can be selected according to the actual stress of the mold. It absorbs the impact force generated when the moving mold 15 is pressed down through elastic deformation. At the same time, the sliding fit between the sliding sleeve 4 and the buffer rod 5 ensures the stability of the buffer plate 7 moving up and down, and avoids skewing during the buffering process.

[0025] The limiting mechanism includes a limiting rod 12 fixedly installed inside the support frame 9, and the limiting rod 12 slides through the moving block 13.

[0026] Furthermore, the limiting rod 12 can strictly limit the movement trajectory of the moving block 13, prevent the moving block 13 from rotating under the drive of the screw 10, and ensure that the moving block 13 can only move in a straight line along the axis of the screw 10, thereby ensuring the smoothness of the lifting and lowering of the moving mold 15.

[0027] The connecting mechanism includes a connecting rod 14 fixedly installed on the outer wall of the movable block 13, and the end of the connecting rod 14 is fixedly connected to the upper end face of the moving mold 15.

[0028] Furthermore, the length and material of the connecting rod 14 can be designed according to the weight and force requirements of the moving mold 15. It not only serves to connect the moving block 13 and the moving mold 15, but also stably transmits the power of the moving block 13 to the moving mold 15, ensuring that the moving mold 15 can move synchronously with the moving block 13.

[0029] The connecting mechanism includes connecting plates 16 fixedly installed on the outer walls of both sides of the moving mold 15, and the ends of the two connecting plates 16 are fixedly connected to the upper end face of the lower pressure plate 17.

[0030] Furthermore, the connecting plate 16 is made of high-strength alloy material, which can effectively withstand the pressure transmitted by the lower pressure plate 17. At the same time, the two connecting plates 16 are symmetrically distributed, so that the pressure of the lower pressure plate 17 on both sides of the moving mold 15 is balanced, and the moving mold 15 is prevented from deforming due to uneven force.

[0031] When this utility model is in use, the motor 11 can be started when mold closing is required. The motor 11 drives the screw 10 to rotate. Under the limiting action of the limiting rod 12, the moving block 13 moves downward along the screw 10, and drives the moving mold 15 to move downward through the connecting rod 14. During this process, the guide sleeves 21 fixed by the mounting plate 20 on both sides of the outer wall of the moving mold 15 will slide synchronously along the guide rod 19 fixed on the upper end face of the base 1. The precise cooperation between the guide rod 19 and the guide sleeve 21 provides a stable guiding effect for the downward movement of the moving mold 15, effectively preventing the moving mold 15 from deviating or shaking during the movement, and ensuring that the moving mold 15 can always accurately approach the fixed mold 2 along the preset trajectory.

[0032] As the moving mold 15 continues to descend, the lower pressure plates 17 connected to its outer walls via connecting plates 16 also move downwards synchronously. When the lower pressure plates 17 reach contact with the upper surface of the buffer plate 7, the downward force of the moving mold 15 is transmitted to the buffer plate 7 through the lower pressure plates 17, causing the buffer plate 7 to be subjected to downward pressure. Under this pressure, the buffer plate 7 pushes the buffer rod 5 to slide downwards along the sliding sleeve 4, while simultaneously compressing the buffer spring 8 sleeved on the outer wall of the buffer rod 5. During the compression process, the buffer spring 8 generates an upward elastic reaction force. This reaction force can effectively offset part of the impact force of the moving mold 15 descending, thereby slowing down the downward speed of the moving mold 15, preventing the moving mold 15 from colliding violently with the fixed mold 2, and reducing the impact on the mold components. The wear caused by impact greatly extends the service life of the mold. As the moving mold 15 continues to descend and its bottom gradually approaches the upper surface of the fixed mold 2, the sealing gasket 18 fixedly installed on the inner top wall of the moving mold 15 will accurately align with the sealing groove opened on the upper surface of the fixed mold 2. As the moving mold 15 and the fixed mold 2 further fit together, the sealing gasket 18 will gradually embed into the sealing groove. Since the sealing gasket 18 is made of a material with a certain elasticity, under the pressure of the moving mold 15, the sealing gasket 18 will undergo slight deformation and fit tightly against the inner wall of the sealing groove, thereby forming a tight sealing barrier between the moving mold 15 and the fixed mold 2, effectively preventing the molten material from overflowing from the mold closing surface during the injection molding process, ensuring the molding quality of the injection molded product, and achieving a full sealing effect of the mold.

[0033] After the mold is closed, injection molding can begin. When mold opening is required after injection molding, simply reverse the motor 11. The motor 11 will drive the screw 10 to rotate in the opposite direction. Under the limiting action of the limit rod 12, the moving block 13 will move upward along the screw 10 and drive the moving mold 15 upward through the connecting rod 14. At this time, the lower pressure plate 17 will move upward along with the moving mold 15 and will no longer apply pressure to the buffer plate 7. The compressed buffer spring 8 will return to its original state and push the buffer plate 7 and buffer rod 5 upward to reset. The limit plate 6 will limit the reset stroke of the buffer rod 5 to prevent it from disengaging from the sliding sleeve 4. At the same time, the guide sleeve 21 will slide upward along the guide rod 19 to ensure the smoothness of the rising process of the moving mold 15 until the moving mold 15 is completely separated from the fixed mold 2, completing the mold opening action and making it easy to remove the injection-molded product.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fully encapsulated injection mold comprising a base (1), characterized in that, A fixed mold (2) is fixedly installed on the upper surface of the base (1). Two buffer frames (3) are fixedly installed on the upper surface of the base (1). Sliding sleeves (4) are fixedly installed on the upper surface of each of the two buffer frames (3). Buffer rods (5) are slidably installed inside each of the two sliding sleeves (4). Limit plates (6) are fixedly installed on the outer walls of each of the two buffer rods (5). Buffer plates (7) are fixedly connected to the ends of the two buffer rods (5). The bottom wall of the buffer plate (7) is connected to the upper surface of the two buffer frames (3) through a buffer mechanism. A screw (10) is rotatably installed on the upper surface of the base (1) through a support frame (9). A motor connected to the screw (10) is fixedly installed on the upper surface of the support frame (9). 11) A movable block (13) is installed on the outer wall of the screw (10) through a limiting mechanism. A movable mold (15) is fixedly connected to the outer wall of the movable block (13) through a connecting mechanism. A lower pressure plate (17) is fixedly connected to both outer walls of the movable mold (15) through a connecting mechanism. A sealing gasket (18) is fixedly installed on the inner top wall of the movable mold (15). A sealing groove that mates with the sealing gasket (18) is opened on the upper end face of the fixed mold (2). Two guide rods (19) are fixedly installed on the upper end face of the base (1). Guide sleeves (21) are fixedly installed on both outer walls of the movable mold (15) through a mounting plate (20). The two guide rods (19) slide through the guide sleeves (21) on the same side respectively.

2. A full sealed injection mold according to claim 1, characterized in that, The buffer mechanism includes buffer springs (8) installed on the outer walls of two buffer rods (5), and the two ends of the two buffer springs (8) are elastically connected to the upper end face of the buffer frame (3) and the bottom wall of the buffer plate (7) on the same side, respectively.

3. A full sealed injection mold according to claim 2, characterized in that, The limiting mechanism includes a limiting rod (12) fixedly installed inside the support frame (9), and the limiting rod (12) slides through the moving block (13).

4. A full sealed injection mold according to claim 3, characterized in that, The connecting mechanism includes a connecting rod (14) fixedly installed on the outer wall of the movable block (13), and the end of the connecting rod (14) is fixedly connected to the upper surface of the moving mold (15).

5. A full sealed injection mold according to claim 4, characterized in that, The connecting mechanism includes connecting plates (16) fixedly installed on the outer walls of both sides of the moving mold (15), and the ends of the two connecting plates (16) are fixedly connected to the upper surface of the lower pressure plate (17).

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