High-precision forming die for daily-use injection molded parts
By designing a high-precision molding die for daily-use injection molded parts with a knob and a two-way screw structure, the problem of difficult mold design changes was solved, enabling rapid replacement of mold components and efficient ejection of molded parts, thus improving processing convenience and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PUJIANG COUNTY YIKEYOU HOME FURNISHING PROD CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-07-21
AI Technical Summary
When existing injection molds undergo design changes, large-scale modifications or remanufacturing are required, making it difficult to achieve efficient replacement and adjustment of mold components, which affects the molding effect.
A high-precision molding die for daily-use injection molded parts was designed. The mounting block can be quickly disassembled and installed through a knob and a two-way screw structure, which facilitates the replacement of the moving module and the injection cavity. The top block is driven by a cylinder push rod to eject the molded part.
It enables rapid replacement of mold components and efficient ejection of molded parts, improving the convenience and applicability of the equipment and reducing the need for disassembling the entire mold.
Smart Images

Figure CN224527844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of daily-use injection molding technology, and in particular to a high-precision molding die for daily-use injection molding. Background Technology
[0002] An injection mold is a tool used to manufacture injection molded parts. It usually consists of two or more parts. Through the injection molding process, molten plastic material is injected into the mold cavity. After cooling and solidification, a plastic product with a specific shape and size is formed. Once the injection mold is designed and manufactured, if a major design change is required for the product, it often requires large-scale modification or even remanufacturing of the mold. This is because the structure and size of the mold are fixed, and modifications to some key parts may affect the performance and molding effect of the entire mold. Therefore, it is necessary to propose a high-precision injection mold for daily use. Utility Model Content
[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a high-precision molding die for daily-use injection molded parts.
[0004] The technical solution of this utility model: A high-precision molding die for daily-use injection molded parts, including a worktable, a support plate and a fixed seat on the top surface of the worktable, a cylinder push rod 1 on the right side of the support plate, a connecting frame on the output end of the cylinder push rod 1, a movable seat on the right side of the connecting frame, a cylinder push rod 2 on the left side of the movable seat, a mounting plate on the right side of the mounting plate, a U-shaped frame on the right side of the U-shaped frame, a moving module on the right side of the U-shaped frame, and slots on the right sides of both the U-shaped frame and the moving module. A top block is slidably disposed inside each slot, and a top rod is disposed on the left side of each top block. The left end of each rod is provided with a common movable plate. Each top rod is fitted with a spring on its outer ring. A fixed template is provided on the left side of the fixed seat. An injection cavity is opened on the left side of the fixed template. Mounting blocks are provided on the front and rear sides of the mounting plate and the fixed template. Two rectangular slots are opened on the top surface of each mounting block. A set of adjustment slots is opened on the side of the fixed seat and the movable seat that are close to each other. A set of knobs is rotatably provided on the top surface of the fixed seat and the movable seat. A bidirectional screw is provided on the bottom surface of each knob. T-shaped threaded plates are threaded to the outer rings of both ends of each bidirectional screw. A rectangular block is provided on the side of the two corresponding T-shaped threaded plates that are close to each other.
[0005] Preferably, a plurality of guide rods are provided between the support plate and the fixed seat, and the movable seat is slidably connected to the guide rods.
[0006] Preferably, the second cylinder push rod is located inside the connecting frame, and the output end of the second cylinder push rod is slidably connected to both the movable seat and the mounting plate. The output end of the second cylinder push rod is in contact with the left side of the movable plate.
[0007] Preferably, the right side of the top block is flush with the right side of the corresponding U-shaped frame or moving module.
[0008] Preferably, the top rod is slidably connected to the corresponding U-shaped frame and moving module.
[0009] Preferably, the right side of the fixing seat is provided with an injection port, which is connected to the injection cavity.
[0010] Preferably, each knob has a groove on its top surface, and a U-shaped positioning rod is slidably disposed inside the groove. The top surfaces of the fixed seat and the movable seat have two slots corresponding to the position of each knob, and the two ends of the U-shaped positioning rod are slidably connected to the slots.
[0011] Compared with the prior art, the present invention has the following beneficial technical effects:
[0012] This invention allows for quick disassembly and installation of the mounting block by setting a knob to the rectangular block, thereby facilitating the rapid disassembly and installation of the mounting plate and fixed template. It eliminates the need to disassemble the entire mold and allows for the replacement of the moving module and injection cavity, improving the convenience and applicability of the equipment. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;
[0015] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0016] Figure 4 This is a schematic diagram of a portion of the structure of this utility model;
[0017] Figure 5 This is a partial structural cross-sectional view of the present invention.
[0018] Reference numerals: 1. Workbench; 2. Support plate; 3. Fixed seat; 4. Cylinder push rod one; 5. Connecting frame; 6. Moving seat; 7. Cylinder push rod two; 8. Mounting plate; 9. U-shaped frame; 10. Moving module; 11. Top block; 12. Top rod; 13. Moving plate; 14. Spring; 15. Fixed template; 16. Injection cavity; 17. Mounting block; 18. Knob; 19. Two-way screw; 20. T-shaped threaded plate; 21. Rectangular block; 22. Guide rod; 23. U-shaped positioning rod. Detailed Implementation
[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example
[0020] like Figures 1 to 5 As shown, this utility model proposes a high-precision molding die for daily-use injection molded parts, including a worktable 1. The top surface of the worktable 1 is provided with a support plate 2 and a fixed seat 3. The top surface of the worktable 1 is fixedly connected to the bottom surface of the support plate 2 and the fixed seat 3. A cylinder push rod 4 is provided on the right side of the support plate 2. The right side of the support plate 2 is fixedly connected to the left side of the cylinder push rod 4. A connecting frame 5 is provided at the output end of the cylinder push rod 4. The output end of the cylinder push rod 4 is fixedly connected to the left side of the connecting frame 5. A movable seat 6 is provided on the right side of the connecting frame 5. The right side of the connecting frame 5 is fixedly connected to the left side of the movable seat 6. Multiple guide rods 22 are provided between the support plate 2 and the fixed seat 3. A U-shaped positioning rod 23 is fixedly installed between the support plate 2 and the fixed seat 3. The movable seat 6 is slidably connected to the guide rods 22. The guide rods 22 can guide and limit the running trajectory of the movable seat 6, so that the movable seat 6 always maintains a straight running state.
[0021] A cylinder push rod 7 is provided on the left side of the movable seat 6. The left side of the movable seat 6 is fixedly connected to the right side of the cylinder push rod 7. The cylinder push rod 7 is located inside the connecting frame 5. The output end of the cylinder push rod 7 is slidably connected to both the movable seat 6 and the mounting plate 8. The output end of the cylinder push rod 7 is in contact with the left side of the movable plate 13, so that the movable plate 13 can be pushed to the right by the output end of the cylinder push rod 7. A mounting plate 8 is provided on the right side of the movable seat 6. The right side of the movable seat 6 is in contact with the left side of the mounting plate 8 but not fixedly connected. A U-shaped frame 9 is provided on the right side of the mounting plate 8. The right side of the mounting plate 8 is fixedly connected to the left side of the U-shaped frame 9. A moving module 10 is provided on the right side of the U-shaped frame 9. The right side of the U-shaped frame 9 is fixedly connected to the left side of the moving module 10. A slot is provided on the right side of both the U-shaped frame 9 and the moving module 10. A top block 11 is slidably provided inside each slot. The slot is used to restrict the position of the top block 11.
[0022] The right side of each top block 11 is flush with the right side of the corresponding U-shaped frame 9 or moving module 10. Each top block 11 has a top rod 12 on its left side. The left side of the top block 11 is fixedly connected to the right end of the top rod 12. The top rod 12 is slidably connected to the corresponding U-shaped frame 9 and moving module 10, facilitating the top rod 12 to drive the top block 11 to eject the molded injection part. Each top rod 12 has the same moving plate 13 on its left end. The left side of the top rod 12 is fixedly connected to the right side of the moving plate 13. The rightward movement of the movable plate 13 can drive the push rod 12 and the push block 11 to push to the right, thereby ejecting the injection molded part. Each push rod 12 is fitted with a spring 14 on its outer ring. The spring 14 can push the movable plate 13 back to its original position. A fixed template 15 is provided on the left side of the fixed seat 3. The left side of the fixed seat 3 is attached to the right side of the fixed template 15 but not fixedly connected. An injection cavity 16 is opened on the left side of the fixed template 15, and an injection port is opened on the right side of the fixed seat 3. The injection port is connected to the injection cavity 16.
[0023] Mounting blocks 17 are provided on both the front and rear sides of the mounting plate 8 and the fixed template 15. The mounting plate 8, the fixed template 15 and the mounting blocks 17 are fixedly connected. Each mounting block 17 has two rectangular slots on its top surface. The fixed seat 3 and the movable seat 6 have a set of adjustment slots on their respective sides. The top surfaces of the fixed seat 3 and the movable seat 6 are rotatably provided with a set of knobs 18. Each knob 18 has a groove on its top surface. A U-shaped positioning rod 23 is slidably installed inside the groove. The top surfaces of the fixed seat 3 and the movable seat 6 have two slots corresponding to the position of each knob 18. The two ends of the U-shaped positioning rod 23 are slidably connected to the slots. The U-shaped positioning rod 23 is used to limit the grooves, thereby limiting the knobs 18 and preventing them from rotating. Each knob 18 has a bidirectional screw 19 on its bottom surface. The bottom surface of the knob 18 is fixedly connected to the top of the bidirectional screw 19. The bottom end of each bidirectional screw 19 extends through to the interior of a corresponding adjustment slot.
[0024] Each bidirectional screw 19 has a T-shaped threaded plate 20 threaded to its outer ring at both ends. Rotating the knob 18 can drive the bidirectional screw 19 to rotate. The rotation of the bidirectional screw 19 can drive the two T-shaped threaded plates 20 to move closer or further apart. A rectangular block 21 is provided on the side of the two T-shaped threaded plates 20 that are close to each other. The T-shaped threaded plate 20 and the rectangular block 21 are fixedly connected. Each rectangular block 21 is slidably connected to a corresponding rectangular groove. By installing the rectangular block 21 into the rectangular groove, it is easy to fix the mounting block 17, thereby realizing the replacement of the moving module 10 and the injection cavity 16.
[0025] In this embodiment, when using this device, if it is necessary to replace the moving module 10 or the injection cavity 16, the U-shaped positioning rod 23 needs to be removed from the groove on the knob 18. Then, rotate the knob 18. The rotation of the knob 18 can drive the bidirectional screw 19 to rotate. The rotation of the bidirectional screw 19 can drive the two T-shaped threaded plates 20 to move away from each other, thereby driving the two rectangular blocks 21 to disengage from the two rectangular slots on the mounting block 17. This allows the mounting plate 8 or the fixed template 15 to be removed. Then, the required mounting plate 8 or fixed template 15 can be installed. When installing the mounting plate 8, the position where the mounting plate 8 is slidably connected to the output end of the cylinder push rod 7 needs to be aligned with the output end of the cylinder push rod 7. Then, rotate the knob 18. The rotation of the knob 18 can drive the bidirectional screw 19 to rotate. The rotation of the bidirectional screw 19 can drive the two T-shaped threaded plates 20 to move closer to each other, thereby driving the two rectangular blocks 21 to move closer to each other, thus installing the rectangular blocks 21 into the corresponding rectangular slots. This ensures the stability of the mounting plate 8. When installing the fixed template 15, simply place the two mounting blocks 17 between the two sets of T-shaped threaded plates 20, and turn the knob 18 to drive the bidirectional screw 19 to rotate, thereby allowing the two rectangular blocks 21 to be installed into the rectangular groove, ensuring the stability of the fixed template 15. When injection molding is required, the cylinder push rod 4 needs to be operated. The operation of the cylinder push rod 4 can push the connecting frame 5 to the right, thereby driving the moving seat 6 to the right, and thus driving the U-shaped frame 9 to connect with the fixed template 15. The moving module 10 is located inside the injection cavity 16. Then, the raw material is injected into the injection cavity 16 through the injection port. After cooling and molding, the moving seat 6 is returned to its original position. Then, the cylinder push rod 7 is operated. The output end of the cylinder push rod 7 pushes the moving plate 13 to the right, which drives the ejector rod 12 and the ejector block 11 to the right, thereby ejecting the molded injection part. Then, the output end of the cylinder push rod 7 is returned to its original position, and the moving plate 13 is returned to its original position under the push of the spring 14 for the next operation.
[0026] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.
Claims
1. A high-precision molding die for daily-use injection molded parts, comprising a worktable (1), characterized in that: The top surface of the workbench (1) is provided with a support plate (2) and a fixed seat (3). A cylinder push rod 1 (4) is provided on the right side of the support plate (2). A connecting frame (5) is provided at the output end of the cylinder push rod 1 (4). A movable seat (6) is provided on the right side of the connecting frame (5). A cylinder push rod 2 (7) is provided on the left side of the movable seat (6). An installation plate (8) is provided on the right side of the movable seat (6). A U-shaped frame (9) is provided on the right side of the installation plate (8). A moving module (10) is provided on the right side of the U-shaped frame (9). A slot is provided on the right side of both the U-shaped frame (9) and the moving module (10). A top block (11) is slidably provided inside each slot. A top rod (12) is provided on the left side of each top block (11). The same movable plate (13) is provided at the left end of each top rod (12). The outer ring of the top rod (12) is fitted with a spring (14). A fixed template (15) is provided on the left side of the fixed seat (3). An injection cavity (16) is opened on the left side of the fixed template (15). Mounting blocks (17) are provided on the front and rear sides of the mounting plate (8) and the fixed template (15). Two rectangular slots are opened on the top surface of each mounting block (17). A set of adjustment slots is opened on the side of the fixed seat (3) and the moving seat (6) that are close to each other. A set of knobs (18) is rotatably provided on the top surface of the fixed seat (3) and the moving seat (6). A double screw (19) is provided on the bottom surface of each knob (18). T-shaped threaded plates (20) are threaded to the outer rings of both ends of each double screw (19). A rectangular block (21) is provided on the side of the two corresponding T-shaped threaded plates (20) that are close to each other.
2. The high-precision molding die for daily-use injection molded parts according to claim 1, characterized in that, Multiple guide rods (22) are provided between the support plate (2) and the fixed seat (3), and the movable seat (6) is slidably connected to the guide rods (22).
3. The high-precision molding die for daily-use injection molded parts according to claim 1, characterized in that, The cylinder push rod 2 (7) is located inside the connecting frame (5). The output end of the cylinder push rod 2 (7) is slidably connected to the moving seat (6) and the mounting plate (8). The output end of the cylinder push rod 2 (7) is in contact with the left side of the moving plate (13).
4. The high-precision molding die for daily-use injection molded parts according to claim 1, characterized in that, The right side of the top block (11) is flush with the right side of the corresponding U-shaped frame (9) or moving module (10).
5. A high-precision molding die for daily-use injection molded parts according to claim 1, characterized in that, The top rod (12) is slidably connected to the corresponding U-shaped frame (9) and moving module (10).
6. A high-precision molding die for daily-use injection molded parts according to claim 1, characterized in that, The right side of the fixed base (3) is provided with an injection port, which is connected to the injection cavity (16).
7. A high-precision molding die for daily-use injection molded parts according to claim 1, characterized in that, Each knob (18) has a groove on its top surface, and a U-shaped positioning rod (23) is slidably arranged inside the groove. The top surfaces of the fixed seat (3) and the movable seat (6) have two slots corresponding to the position of each knob (18), and the two ends of the U-shaped positioning rod (23) are slidably connected to the slots.