A split-type modular cavity injection mold
By designing a split-type modular injection mold, the adaptability of integral molds to diverse product requirements is solved, enabling flexible adjustment and improved stability of the mold cavity, thereby increasing production efficiency and mold durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN FULONG PRECISION MANUFACTURING CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-30
AI Technical Summary
Existing integral injection molds are difficult to flexibly adjust the shape and layout of the cavity when dealing with diverse product demands, resulting in insufficient production adaptability.
The mold adopts a split-type combined cavity injection mold. Through the combination design of adjusting column, rotating column, adjusting rod and limiting structure, the mold cavity can be disassembled and adjusted, which enhances the flexibility and stability of the mold.
It improves the adaptability and production efficiency of molds, facilitates the disassembly and replacement of mold cavities, and enhances the stability and durability of molds.
Smart Images

Figure CN224426304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to a split-type combined cavity injection mold. Background Technology
[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding are fast production speed, high efficiency, automated operation, a wide variety of colors and shapes, shapes ranging from simple to complex, sizes ranging from large to small, precise product dimensions, easy product updates and replacements, and the ability to produce complex-shaped parts. Injection molding is suitable for mass production and molding processing fields such as complex-shaped products.
[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: In existing integral injection molds, the cavity is usually formed in one go during the mold manufacturing process and is tightly integrated with other parts of the mold into an inseparable whole. This structure makes the shape, size and layout of the mold cavity basically fixed after manufacturing, making it difficult to flexibly adjust according to actual production needs. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing integral injection mold has gradually exposed many insurmountable limitations when dealing with diverse product demands. Therefore, we propose a split-type combined cavity injection mold.
[0005] To achieve the above objectives, this application adopts the following technical solution: a split-type combined cavity injection mold, comprising an injection mold body: a top mold is installed on the top of the injection mold body, adjusting columns are fixedly connected to all four sides of the top of the injection mold body, a rotating column is rotatably connected inside the adjusting column, an adjusting rod is slidably connected inside the adjusting column, a connecting block is rotatably connected to the top of the adjusting rod, the top of the connecting block is fixedly connected to the bottom of the top mold, adjusting holes are provided at both ends of the rotating column, adjusting blocks are slidably connected inside the adjusting holes, a limiting rod is fixedly connected to the side of the adjusting block near the adjusting hole, and arc-shaped blocks are fixedly connected to both ends inside the adjusting column.
[0006] Preferably, the outer diameter surface of the rotating column is provided with two annular grooves, and the inner wall of the adjusting column is fixedly connected with two annular blocks.
[0007] Preferably, a thrust spring is fixedly connected to the side of the adjusting block near the limiting rod, and the side of the thrust spring away from the adjusting block is fixedly connected to the interior of the adjusting hole.
[0008] Preferably, both sides of the rotating column are provided with shrinkage grooves, and a push rod is slidably connected inside the shrinkage groove. A return spring is fixedly connected to the side of the push rod near the inside of the shrinkage groove, and the side of the return spring away from the push rod is fixedly connected to the inside of the shrinkage groove. Both sides of the adjusting column are provided with limiting grooves.
[0009] Preferably, the size of the limiting rod is adapted to the size of the limiting hole, and the surface of the limiting rod is inserted into the interior of the limiting hole.
[0010] Preferably, guide grooves are provided on both sides of the inside of the adjustment hole, and guide blocks are fixedly connected to both sides of the adjustment block, with the surface of the guide block slidingly connected to the inside of the guide groove.
[0011] Preferably, both ends of the shrinkage groove are provided with sliding grooves, and both ends of the push rod are fixedly connected with sliding blocks, the surface of the sliding blocks being slidably connected to the interior of the sliding groove.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] In this invention, the operator lifts the top mold and aligns the adjusting rod with the inside of the adjusting column. Simultaneously, the operator rotates the rotating column, causing the adjusting block to contact the thicker end of the arc-shaped block. This causes the arc-shaped block to push the adjusting block, which in turn pushes the limiting rod into the limiting hole, thus limiting the adjusting rod and achieving the assembly function. Attached Figure Description
[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a schematic diagram of a partial explosion structure of the present invention;
[0017] Figure 3 This is a schematic diagram of the partially exploded structure of the rotating column of this utility model;
[0018] Figure 4 This is a schematic diagram of the partially exploded structure of the adjusting column of this utility model;
[0019] Figure 5 This is a schematic diagram of the internal structure of the adjusting column of this utility model.
[0020] Legend: 1. Injection mold body; 2. Top mold; 3. Adjusting column; 4. Rotating column; 5. Adjusting rod; 6. Connecting block; 7. Restricting hole; 8. Adjusting hole; 9. Adjusting block; 10. Limiting rod; 11. Arc block; 12. Annular groove; 13. Annular block; 14. Guide groove; 15. Guide block; 16. Thrust spring; 17. Shrinkage groove; 18. Push rod; 19. Return spring; 20. Restricting groove; 21. Sliding groove; 22. Sliding block. Detailed Implementation
[0021] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following specific embodiments and accompanying drawings are only exemplary descriptions of the technical solution of this utility model, and should not be regarded as the whole of this utility model or as a limitation or restriction on the technical solution of this utility model.
[0022] Reference Figures 1-5 As shown, this utility model provides a technical solution: a split-type combined cavity injection mold, including an injection mold body 1; a top mold 2 is installed on the top of the injection mold body 1; adjusting columns 3 are fixedly connected to all four sides of the top of the injection mold body 1; a rotating column 4 is rotatably connected inside the adjusting column 3; an adjusting rod 5 is slidably connected inside the adjusting column 3; a connecting block 6 is rotatably connected to the top of the adjusting rod 5; the top of the connecting block 6 is fixedly connected to the bottom of the top mold 2; adjusting holes 8 are opened at both ends of the rotating column 4; adjusting blocks 9 are slidably connected inside the adjusting holes 8; a limiting rod 10 is fixedly connected to the side of the adjusting block 9 near the adjusting hole 8; and arc blocks 11 are fixedly connected to both ends inside the adjusting column 3. The operator lifts the top mold 2 and aligns the adjusting rod 5 with the inside of the adjusting column 3. At the same time, the operator rotates the rotating column 4, causing the rotating column 4 to drive the adjusting block 9 to contact the thicker end of the arc block 11. The arc block 11 pushes the adjusting block 9 to drive the limiting rod 10 into the limiting hole 7, thus limiting the adjusting rod 5 and achieving the combined function.
[0023] Reference Figure 3 and Figure 5 As shown in this embodiment: two annular grooves 12 are provided on the outer diameter surface of the rotating column 4, and two annular blocks 13 are fixedly connected to the inner wall of the adjusting column 3. The two annular blocks 13 are slidably connected to the inside of the two annular grooves 12 respectively. When the operator rotates the rotating column 4, the rotating column 4 can rotate stably inside the adjusting column 3 through the sliding cooperation between the annular grooves 12 and the annular blocks 13, avoiding the rotating column 4 from deviating during rotation, thereby ensuring that the adjusting block 9 can accurately contact the arc block 11, and improving the stability and reliability of the device.
[0024] Reference Figure 3As shown in this embodiment: the side of the adjusting block 9 closest to the limiting rod 10 is fixedly connected to the thrust spring 16, and the side of the thrust spring 16 away from the adjusting block 9 is fixedly connected to the inside of the adjusting hole 8. When the operator rotates the rotating column 4 to make the arc block 11 contact the adjusting block 9, the arc block 11 pushes the adjusting block 9 and squeezes the thrust spring 16 to compress and store force, and drives the limiting rod 10 to be inserted into the limiting hole 7. When the operator cancels the contact between the arc block 11 and the adjusting block 9, the thrust spring 16 releases the stored force and drives the adjusting block 9 to reset, thereby allowing the limiting rod 10 to be pulled out from the inside of the limiting hole 7, which facilitates the operator to disassemble and replace the adjusting rod 5.
[0025] Reference Figure 3 and Figure 5 As shown in this embodiment: both sides of the rotating column 4 are provided with shrinkage grooves 17, and a push rod 18 is slidably connected inside the shrinkage groove 17. A return spring 19 is fixedly connected to the side of the push rod 18 near the inside of the shrinkage groove 17, and the side of the return spring 19 away from the push rod 18 is fixedly connected to the inside of the shrinkage groove 17. Both sides of the adjusting column 3 are provided with limiting grooves 20. When the operator limits the limiting rod 10 to the limiting hole 7, the rotating column 4 drives the shrinkage groove 17 to be parallel to the limiting groove 20. At the same time, the stored force of the return spring 19 is released, and the push rod 18 is driven to insert into the inside of the limiting groove 20, thus limiting the rotating column 4 and preventing it from rotating.
[0026] Reference Figure 2 and Figure 3 As shown, in this embodiment, the size of the limiting rod 10 is adapted to the size of the limiting hole 7, and the surface of the limiting rod 10 is inserted into the interior of the limiting hole 7, so that the limiting rod 10 can be firmly inserted into the limiting hole 7 and is not easy to fall off, thereby enhancing the stability and reliability of the structure and improving the durability of the overall structure.
[0027] Reference Figure 3 As shown in this embodiment: guide grooves 14 are provided on both sides of the inside of the adjustment hole 8, and guide blocks 15 are fixedly connected to both sides of the adjustment block 9. The surface of the guide block 15 is slidably connected to the inside of the guide groove 14. This slidable connection method allows the adjustment block 9 to move smoothly and steadily in the adjustment hole 8, ensuring the accuracy and stability of the adjustment process.
[0028] Reference Figure 3 As shown in this embodiment: sliding grooves 21 are provided at both ends of the shrinkage groove 17, and sliding blocks 22 are fixedly connected to both ends of the push rod 18. The surface of the sliding block 22 is slidably connected to the inside of the sliding groove 21, which makes the push rod 18 more stable when moving inside the shrinkage groove 17 and less prone to shaking. This ensures that the push rod 18 can be accurately inserted into the limiting groove 20, further enhancing the stability and reliability of the structure.
[0029] Working principle: The operator lifts the top mold 2 and aligns the adjusting rod 5 with the inside of the adjusting column 3. Simultaneously, the operator rotates the rotating column 4, causing the adjusting block 9 to contact the thicker end of the arc-shaped block 11. This causes the arc-shaped block 11 to push the adjusting block 9, which in turn pushes the limiting rod 10 into the limiting hole 7, thus limiting the adjusting rod 5 and achieving a combined function. Two annular blocks 13 are slidably connected to the inside of two annular grooves 12. When the operator rotates the rotating column 4, the rotating column 4 can rotate stably inside the adjusting column 3 through the sliding cooperation between the annular grooves 12 and the annular blocks 13, preventing the rotating column 4 from shifting during rotation. This ensures that the adjusting block 9 accurately contacts the arc-shaped block 11, improving the stability and reliability of the device. When the operator rotates the rotating column 4 to make the arc-shaped block 11 contact the adjusting block 9, the arc-shaped block 11 pushes the adjusting block 9 and compresses the thrust spring 16, storing force and causing the limiting rod 10 to insert into the limiting hole 7. When the contact between the arc-shaped block 11 and the adjusting block 9 is canceled, the thrust spring 16 releases its stored force and drives the adjusting block 9 to reset, thereby allowing the limiting rod 10 to be pulled out from the inside of the limiting hole 7, making it convenient for the operator to disassemble and replace the adjusting rod 5. When the operator limits the limiting rod 10 to the limiting hole 7, the rotating column 4 drives the shrinkage groove 17 to be parallel to the limiting groove 20. At the same time, the stored force of the reset spring 19 is released, and the push rod 18 is inserted into the inside of the limiting groove 20, completing the limitation of the rotating column 4 and preventing it from rotating. This allows the limiting rod 10 to be firmly inserted into the limiting hole 7, making it less likely to fall out, thus enhancing the stability and reliability of the structure and improving the overall durability. This sliding connection method allows the adjusting block 9 to move smoothly and steadily in the adjusting hole 8, ensuring the accuracy and stability of the adjustment process. It also makes the push rod 18 more stable when moving inside the shrinkage groove 17, making it less likely to shake. This ensures that the push rod 18 can be accurately inserted into the limiting groove 20, further enhancing the stability and reliability of the structure.
[0030] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A split-combination-type cavity injection mold characterized by comprising: The injection mold body (1) includes a top mold (2) installed on the top of the injection mold body (1). Adjusting columns (3) are fixedly connected to the top of the injection mold body (1) around the perimeter. A rotating column (4) is rotatably connected inside the adjusting column (3). An adjusting rod (5) is slidably connected inside the adjusting column (3). A connecting block (6) is rotatably connected to the top of the adjusting rod (5). The top of the connecting block (6) is fixedly connected to the bottom of the top mold (2). Adjusting holes (8) are opened at both ends of the rotating column (4). An adjusting block (9) is slidably connected inside the adjusting hole (8). A limiting rod (10) is fixedly connected to the side of the adjusting block (9) near the adjusting hole (8). An arc block (11) is fixedly connected to both ends inside the adjusting column (3).
2. The split-combination cavity injection mold according to claim 1, characterized in that: The outer diameter surface of the rotating column (4) is provided with two annular grooves (12), and the inner wall of the adjusting column (3) is fixedly connected with two annular blocks (13).
3. The split-type combined cavity injection mold according to claim 1, characterized in that: The adjusting block (9) is fixedly connected to the thrust spring (16) on the side near the limiting rod (10), and the thrust spring (16) is fixedly connected to the inside of the adjusting hole (8) on the side away from the adjusting block (9).
4. The split-type combined cavity injection mold according to claim 1, characterized in that: Both sides of the rotating column (4) are provided with shrinkage grooves (17). A push rod (18) is slidably connected inside the shrinkage groove (17). A return spring (19) is fixedly connected to the side of the push rod (18) near the inside of the shrinkage groove (17). The side of the return spring (19) away from the push rod (18) is fixedly connected to the inside of the shrinkage groove (17). Both sides of the adjusting column (3) are provided with limiting grooves (20).
5. The split-type combined cavity injection mold according to claim 1, characterized in that: The size of the limiting rod (10) is adapted to the size of the limiting hole (7), and the surface of the limiting rod (10) is inserted into the interior of the limiting hole (7).
6. The split-type combined cavity injection mold according to claim 1, characterized in that: The adjustment hole (8) has guide grooves (14) on both sides, and guide blocks (15) are fixedly connected to both sides of the adjustment block (9). The surface of the guide block (15) is slidably connected to the inside of the guide groove (14).
7. The split-type combined cavity injection mold according to claim 4, characterized in that: The shrinkage groove (17) has sliding grooves (21) at both ends, and the push rod (18) has sliding blocks (22) fixedly connected to both ends. The surface of the sliding block (22) is slidably connected to the inside of the sliding groove (21).