An injection molding die device
By introducing components such as a base, forming components, guide rods, and hydraulic cylinders into the injection molding die device, precise guidance and positioning are achieved, solving the problems of mold closing accuracy and stability, and improving the quality of finished products and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MIANYANG JINGQI TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2026-01-07
- Publication Date
- 2026-06-30
AI Technical Summary
Existing injection molding die devices have poor mold closing accuracy and injection stability, and lack precise guiding and positioning structures, which makes the moving mold prone to displacement and tilting, resulting in material leakage from the cavity gap, and finished products with flash, dimensional deviations and insufficient structural strength.
It adopts components such as base, forming components, guide rod, hydraulic cylinder, push plate, push rod, and positioning column to provide a stable load-bearing foundation, achieve precise guidance and positioning, ensure accurate mold alignment, uniform hydraulic pressure transmission, reduce the material conveying path, and set up unloading components to ensure smooth demolding of finished products.
It improves the structural strength and dimensional accuracy of finished products, reduces flash and dimensional deviations, increases the yield rate of finished products, reduces the intensity of manual operation, and adapts to the needs of large-scale injection molding production.
Smart Images
Figure CN224426314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold device technology, and in particular to an injection molding mold device. Background Technology
[0002] Injection molding die set is a core piece of equipment in injection molding production. It achieves precise mold closure through a mold closing mechanism, and uses an injection molding machine to inject molten plastic raw material into the mold cavity. After the raw material cools and solidifies, it forms a plastic product of a preset shape. It is widely used in many manufacturing fields such as electronics, automobiles, daily necessities, and medical devices.
[0003] Existing injection molding die-cutting devices suffer from poor mold-closing accuracy and injection stability. These devices lack precise guiding and positioning structures, relying solely on a single hydraulic drive mechanism to move the movable mold. This leads to easy displacement and tilting of the movable mold, resulting in misalignment between the fixed and movable molds. Furthermore, uneven hydraulic force transmission can cause unilateral deformation of the movable mold, leading to material leakage from the cavity. Inadequate material feeding channel design results in a long material transport path, which can cause the material to cool and solidify during transport, leading to insufficient cavity filling. Ultimately, this results in defects such as flash, dimensional deviations, and insufficient structural strength in the finished product, resulting in a low yield rate.
[0004] Therefore, this application proposes an injection molding die device. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an injection molding die device that solves the problems mentioned in the background section.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An injection molding die device includes: a base placed on the ground, with an injection molding machine fixedly mounted on the top of the base; a molding assembly including a first fixed plate, a movable plate, and a second fixed plate, with a hydraulic cylinder fixedly mounted on one side of the second fixed plate; a guide rod fixedly mounted between the second fixed plate and the first fixed plate, the guide rod movably passing through the movable plate, a first mold fixedly mounted on the side of the movable plate near the first fixed plate, and a second mold fixedly mounted on the side of the first fixed plate near the movable plate; and an unloading assembly including an electric telescopic rod and a push column.
[0008] According to the injection molding mold device, the first fixed plate, the movable plate and the second fixed plate are perpendicular to each other, the movable plate is located between the first fixed plate and the second fixed plate, and the first fixed plate and the second fixed plate are both fixedly installed on the top of the base.
[0009] According to the injection molding die device, the discharge end of the injection molding machine is connected to the second die, and the four corners of the first fixed plate are provided with positioning grooves. The moving plate is fixedly installed with positioning columns at the corresponding positioning grooves, and the positioning columns can be movably engaged with the corresponding positioning grooves.
[0010] According to the injection molding die device, the telescopic end of the hydraulic cylinder movably passes through the second fixed plate and is fixedly connected to a push plate. Push rods are fixedly installed at the four corners of the side of the push plate away from the second fixed plate, and the other ends of the four push rods are fixedly connected to the moving plate.
[0011] According to the injection molding die device, the unloading assembly also includes a mounting plate, with sliding holes through each of the four corners of the mounting plate. The mounting plate moves through the outer wall of the push rod through the sliding holes, and the mounting plate and the push plate are parallel to each other.
[0012] According to the injection molding die device, the electric telescopic rod is fixedly installed at the center of the push plate, and the telescopic end of the electric telescopic rod is fixedly connected to the center of the mounting plate.
[0013] According to the injection molding die device, there are multiple push columns, one end of which is fixedly mounted on the mounting plate, and the other end of which can movably pass through the moving plate and the first die.
[0014] This utility model provides an injection molding die device. It has the following beneficial effects:
[0015] (1) This utility model is constructed by setting up a base, forming components, guide rods, hydraulic cylinders, push plates, push rods, positioning columns, positioning grooves, and an injection molding machine. The base provides a stable bearing foundation for the entire device, preventing the equipment from shaking under high-pressure injection conditions. The first fixed plate and the second fixed plate are fixedly installed, and the sliding fit between the guide rods and the moving plate provides precise guidance for the mold opening and closing action, preventing the moving plate from deviating. The hydraulic cylinder provides stable high pressure, and the driving force is smoothly transmitted to the moving plate through the push plate and four evenly distributed push rods, preventing the moving plate from being deformed by force on one side. The precise engagement of the positioning columns and the positioning grooves forms a double positioning, ensuring that the first mold and the second mold are accurately aligned and fitted. The discharge end of the injection molding machine is directly connected to the second mold, reducing the material conveying path and ensuring the material flowability. All components work together to achieve precise mold closing and stable injection, effectively preventing material leakage from the cavity gap, ensuring that the material fully fills the cavity and is uniformly cured, greatly improving the structural strength and dimensional accuracy of the finished product, reducing defects such as flash and dimensional deviation, and improving the finished product qualification rate.
[0016] (2) This utility model, by setting up components such as unloading components, sliding holes and push plates, allows the mounting plate to move through the outer wall of the push rod via the sliding holes, providing precise guidance for the ejection action of the push rod, avoiding misalignment of the push rod due to offset of the mounting plate, and preventing damage to the mold cavity or finished product during ejection; the electric telescopic rod is fixedly installed at the center of the push plate and the telescopic end is fixedly connected to the center of the mounting plate, which can ensure that the mounting plate is subjected to balanced force, thereby driving multiple push rods to eject synchronously; the distributed design of multiple push rods increases the contact area with the finished product, making the ejection force evenly distributed. The components work together to achieve stable and precise demolding of the finished product, avoiding deformation and damage caused by excessive local stress on the finished product, ensuring the integrity of the finished product's appearance and structural stability; at the same time, manual demolding is not required, greatly improving unloading efficiency, reducing manual operation intensity, and adapting to the needs of large-scale injection molding production. Attached Figure Description
[0017] Figure 1 This is a front view schematic diagram of an injection molding mold device according to the present invention;
[0018] Figure 2 This is a three-dimensional structural diagram of an injection molding mold device according to the present invention;
[0019] Figure 3 This is a top view schematic diagram of an injection molding mold device according to the present invention;
[0020] Figure 4 This is a schematic diagram showing the connection relationship between the second fixing plate, the push plate, and the push rod of an injection molding die device according to the present invention.
[0021] Figure 5 This is a three-dimensional structural diagram of the unloading component of an injection molding die device according to the present invention.
[0022] Legend:
[0023] 10. Base; 11. Injection molding machine; 12. First fixed plate; 13. Moving plate; 14. Second fixed plate; 15. Hydraulic cylinder; 16. First mold; 17. Positioning groove; 18. Positioning column; 19. Second mold; 20. Push plate; 21. Push rod; 22. Sliding hole; 23. Electric telescopic rod; 24. Push column; 25. Mounting plate; 26. Guide rod. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0025] Please see Figure 1-5As shown, this utility model is an injection molding mold device, including a base 10, which is placed on the ground, and an injection molding machine 11 is fixedly installed on the top of the base 10; a molding assembly, which includes a first fixed plate 12, a movable plate 13, and a second fixed plate 14. The first fixed plate 12, the movable plate 13, and the second fixed plate 14 are perpendicular to each other to ensure accurate mold closing direction and avoid misalignment. The movable plate 13 is located between the first fixed plate 12 and the second fixed plate 14. The first fixed plate 12 and the second fixed plate 14 are both fixedly installed on the top of the base 10. A hydraulic cylinder 15 is fixedly installed on one side of the second fixed plate 14; a guide rod 26 is fixedly installed between the second fixed plate 14 and the first fixed plate 12. The guide rod 26 movably passes through the movable plate 13. A first mold 16 is fixedly installed on the side of the movable plate 13 near the first fixed plate 12, and a second mold 19 is fixedly installed on the side of the first fixed plate 12 near the movable plate 13. The base 10 provides a stable support foundation for the entire device. The fixed installation design of the first fixed plate 12 and the second fixed plate 14, and the sliding cooperation between the guide rod 26 and the moving plate 13, provide precise guidance for the mold opening and closing action, completely eliminating cavity misalignment caused by the offset of the moving plate 13, and improving the mold closing accuracy. The stable high pressure provided by the hydraulic cylinder 15 ensures that the first mold 16 and the second mold 19 are tightly closed, avoiding the leakage of raw materials from the cavity gap during injection molding. At the same time, it ensures that the raw materials are fully shaped and uniformly cured under high pressure, improving the structural strength and molding quality of the finished product. The cooperation between the injection molding machine 11 and the second mold 19 realizes the precise supply of raw materials, laying the raw material foundation for injection molding.
[0026] like Figure 2-4 As shown, the discharge end of the injection molding machine 11 is connected to the second mold 19. Positioning grooves 17 are provided through each of the four corners of the first fixed plate 12. Positioning posts 18 are fixedly installed on the moving plate 13 at the corresponding positions of the positioning grooves 17, and the positioning posts 18 can be movably engaged with the corresponding positioning grooves 17. The telescopic end of the hydraulic cylinder 15 movably passes through the second fixed plate 14 and is fixedly connected to a push plate 20. Push rods 21 are fixedly installed at each of the four corners of the side of the push plate 20 away from the second fixed plate 14, and the other ends of the four push rods 21 are all fixedly connected to the moving plate 13. The direct connection between the discharge end of the injection molding machine 11 and the second mold 19 reduces the material conveying path, prevents the material from cooling and solidifying during conveying, ensures the fluidity of the material, and ensures sufficient filling of the cavity. The precise engagement of the positioning pin 18 and the positioning groove 17 forms a double mold closing positioning, further improving the alignment accuracy of the first mold 16 and the second mold 19, avoiding defects such as flash and dimensional deviations in the finished product caused by mold misalignment, and significantly improving the finished product qualification rate. The cooperation between the push plate 20 and the four push rods 21 realizes the uniform distribution and transmission of the driving force of the hydraulic cylinder 15, avoids deformation or tilting caused by unilateral force on the moving plate 13, ensures smooth and stable mold opening and closing, and extends the service life of the moving plate 13 and the mold.
[0027] like Figure 4-5 As shown, the unloading assembly includes an electric telescopic rod 23 and push columns 24. The assembly also includes a mounting plate 25, with sliding holes 22 through each of its four corners. The mounting plate 25 movably passes through the outer wall of the push rod 21 via the sliding holes 22, and is parallel to the push plate 20. The electric telescopic rod 23 is fixedly installed at the center of the push plate 20, and its telescopic end is fixedly connected to the center of the mounting plate 25. Multiple push columns 24 are present, with one end fixedly installed on the mounting plate 25, and the other end movably passing through the movable plate 13 and the first mold 16. The mounting plate 25, through the sliding engagement of the sliding hole 22 and the push rod 21, provides precise guidance for the ejection action of the push rod 24, preventing the mounting plate 25 from shifting and causing the push rod 24 to misalign, thus preventing damage to the mold cavity or finished product during ejection. The electric telescopic rod 23 is installed at the center of the push plate 20 and connected to the center of the mounting plate 25, ensuring that the mounting plate 25 is subjected to balanced force and driving multiple push rods 24 to eject synchronously, avoiding excessive local force on the finished product that could lead to deformation or damage, and ensuring the integrity of the finished product's appearance and structural stability. The distributed design of multiple push rods 24 increases the contact area with the finished product, making the ejection force evenly distributed and further improving the smoothness of demolding. The collaborative design of the unloading component and the forming component eliminates the need for manual demolding, greatly improving unloading efficiency, reducing manual operation intensity, and avoiding scratches and damage to the finished product caused by manual demolding, thereby improving production efficiency and finished product qualification rate, and adapting to the needs of large-scale injection molding production.
[0028] The implementation principle of this injection molding die device is as follows:
[0029] First, thoroughly inspect the condition of all components of the equipment, confirming that the base 10 is placed stably without shaking, the first fixing plate 12 and the second fixing plate 14 are firmly connected to the base 10, the sliding plate 13 and the guide rod 26 slide smoothly without jamming, and the cavities of the first mold 16 and the second mold 19 are free of impurities and damage. Check that the hydraulic cylinder 15 and the electric telescopic rod 23 move flexibly, the push plate 20 and the push rod 21 are reliably connected, and the positioning column 18 and the positioning groove 17 are accurately aligned. Add the raw material to be injected into the hopper of the injection molding machine 11, and set parameters such as the raw material melting temperature and injection pressure through the control system of the injection molding machine 11. At the same time, set key parameters such as the mold closing pressure, holding time and ejection stroke of the electric telescopic rod 23 of the hydraulic cylinder 15 through the equipment control console. Control the hydraulic cylinder 15 to start, drive the moving plate 13 to move along the guide rod 26 to the initial position, and ensure that the positioning column 18 and the positioning groove 17 are in the ready-to-lock state, completing the equipment initialization positioning.
[0030] Then, the extension end of the hydraulic cylinder 15 extends, driving the push plate 20 to move synchronously. The push plate 20 smoothly transmits the driving force to the moving plate 13 through four evenly distributed push rods 21. Under the precise guidance of the guide rod 26, the moving plate 13 moves smoothly towards the first fixed plate 12. During the process, the positioning pins 18 on the moving plate 13 gradually engage with the positioning grooves 17 of the first fixed plate 12, forming a double positioning to ensure that the first mold 16 and the second mold 19 are precisely aligned and tightly fitted. After the mold is closed, the injection molding machine 11 starts and precisely injects the molten raw material into the cavity connected to the second mold 19 through the discharge end. Under high pressure, the raw material fully fills all corners of the cavity. The set holding time is maintained so that the raw material in the cavity can be fully shaped and solidified under high pressure and constant temperature. During this period, the hydraulic cylinder 15 continuously provides stable pressure to avoid defects in the finished product caused by the cooling and shrinkage of the raw material.
[0031] Finally, after the raw material solidifies and forms, the control console issues an opening command. The extension end of the hydraulic cylinder 15 retracts, driving the moving plate 13 to move in the opposite direction via the push plate 20 and push rod 21, separating the first mold 16 from the second mold 19. Subsequently, the unloading assembly is activated, and the extension end of the electric telescopic rod 23 extends, driving the mounting plate 25 to move smoothly along the direction of the push rod 21 (the mounting plate 25 slides with the push rod 21 through the sliding hole 22, providing precise guidance for the ejection action of the push column 24, avoiding the offset of the mounting plate 25 and causing the push column 24 to misalign, preventing damage to the mold cavity or finished product during ejection). The electric telescopic rod 23 is installed at the center of the push plate 20 and connected to the center of the mounting plate 25, ensuring that the mounting plate 25 is subjected to balanced force, driving multiple push columns 24 to eject synchronously. After passing through the moving plate 13 and the first mold 16, the push column 24 precisely acts on the finished product, smoothly ejecting the finished product from the cavity of the first mold 16.
[0032] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An injection molding die device, characterized in that, include: A base (10) is placed on the ground, and an injection molding machine (11) is fixedly installed on the top of the base (10). The forming assembly includes a first fixed plate (12), a movable plate (13), and a second fixed plate (14), with a hydraulic cylinder (15) fixedly installed on one side of the second fixed plate (14). A guide rod (26) is fixedly installed between the second fixed plate (14) and the first fixed plate (12). The guide rod (26) moves through the movable plate (13). A first mold (16) is fixedly installed on the side of the movable plate (13) near the first fixed plate (12). A second mold (19) is fixedly installed on the side of the first fixed plate (12) near the movable plate (13). The unloading assembly includes an electric telescopic rod (23) and a pusher (24).
2. The injection molding die apparatus according to claim 1, characterized in that: The first fixed plate (12), the movable plate (13), and the second fixed plate (14) are perpendicular to each other. The movable plate (13) is located between the first fixed plate (12) and the second fixed plate (14). The first fixed plate (12) and the second fixed plate (14) are both fixedly installed on the top of the base (10).
3. The injection molding die apparatus according to claim 1, characterized in that: The discharge end of the injection molding machine (11) is connected to the second mold (19). The four corners of the first fixed plate (12) are provided with positioning grooves (17). The moving plate (13) is fixedly installed with positioning posts (18) at the corresponding positioning grooves (17). The positioning posts (18) can be engaged with the corresponding positioning grooves (17).
4. The injection molding die apparatus according to claim 1, characterized in that: The extension end of the hydraulic cylinder (15) extends through the second fixed plate (14) and is fixedly connected to a push plate (20). Push rods (21) are fixedly installed at the four corners of the side of the push plate (20) away from the second fixed plate (14). The other ends of the four push rods (21) are fixedly connected to the moving plate (13).
5. The injection molding die apparatus according to claim 1, characterized in that: The unloading assembly also includes a mounting plate (25), with sliding holes (22) through each of the four corners of the mounting plate (25). The mounting plate (25) passes through the outer wall of the push rod (21) through the sliding holes (22), and the mounting plate (25) and the push plate (20) are parallel to each other.
6. The injection molding die apparatus according to claim 1, characterized in that: The electric telescopic rod (23) is fixedly installed at the center of the push plate (20), and the telescopic end of the electric telescopic rod (23) is fixedly connected to the center of the mounting plate (25).
7. The injection molding die apparatus according to claim 1, characterized in that: There are multiple pushers (24), one end of which is fixedly installed on the mounting plate (25), and the other end of which can movably pass through the moving plate (13) and the first mold (16).