An injection mold having an ejection mechanism
By introducing an ejection mechanism into the injection mold, and using a servo motor to drive the rotary table and limit components, the workpiece can be automatically ejected, solving the problems of damage and low efficiency caused by manual part removal, and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202521845758.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-28
AI Technical Summary
In existing injection molds, manually removing workpieces can easily cause damage, increase scrap rate, reduce material handling efficiency, and is inefficient.
Design an injection mold with an ejection mechanism. A servo motor drives a rotary disk to drive a transmission rod and a transmission frame. With the help of a limiting component, the workpiece can be automatically ejected and precisely limited, ensuring the stability and accuracy of the transmission system.
It enables rapid, safe, and precise ejection of workpieces, reduces workpiece damage rate, improves material handling efficiency and production line smoothness, and reduces production costs.
Smart Images

Figure CN224675452U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold with an ejection mechanism. Background Technology
[0002] Injection molds are specialized tools used for the mass production of plastic products. They are formed by injecting molten plastic raw materials (such as PP, ABS, PC, etc.) into the mold cavity under high pressure, and then cooling and solidifying them to form a product that is completely consistent with the shape of the mold cavity. It is the core equipment of the injection molding process and is widely used in manufacturing industries such as automobiles, electronics, home appliances, medical devices, and packaging.
[0003] In current injection mold applications, workpieces are typically removed manually. Manual removal is prone to damage, increasing scrap rates and reducing material handling efficiency. The common practice in injection mold applications is to manually remove molded workpieces. This manual method is susceptible to damage due to factors such as operator skill level, concentration, and environmental conditions. This damage not only affects the overall quality of the workpiece but also directly increases the scrap rate, necessitating frequent scrap handling and increasing production costs. Furthermore, manual removal is significantly less efficient than automated equipment, being slower and prone to delays and errors. This further reduces the efficiency of the entire material handling process, impacting the smooth operation of the production line and overall capacity.
[0004] Therefore, it is necessary to provide an injection mold with an ejection mechanism to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide an injection mold with an ejection mechanism, which solves the problem that in current injection molds, workpieces are removed manually, which can easily damage the workpieces, increase the scrap rate, and reduce material handling efficiency.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an injection mold with an ejection mechanism, comprising a lower injection mold component and an upper injection mold component, wherein an ejection rod is slidably connected to the bottom of the inner wall of the lower injection mold component, an ejection assembly is provided at the bottom of the ejection rod, and a limit assembly is provided at the bottom of the lower injection mold component; The ejection assembly is used to eject the workpiece; The limiting component is used to limit the ejection component.
[0007] Preferably, the ejection assembly includes a transmission frame, which is fixedly connected to the bottom of the ejection rod. A rotating disk is provided on the left side of the transmission frame, and a transmission rod is fixedly connected to the right side of the rotating disk. The transmission rod is slidably connected to the transmission frame, and a servo motor is driven to the left side of the rotating disk.
[0008] Preferably, the limiting component includes a limiting ring, which is fixedly connected to the outside of the transmission frame, and a limiting rod is fixedly connected to the bottom of the lower injection mold part, with the limiting rod slidably connected to the limiting ring.
[0009] Preferably, a stabilizing frame is fixedly connected to the outside of the servo motor, and the top of the stabilizing frame is fixedly connected to the bottom of the lower injection mold part.
[0010] Preferably, a support plate is horizontally fixedly connected to the bottom of the injection mold part, and the support plate is fixedly connected to the top of the limiting rod.
[0011] Preferably, a metal sleeve is fitted on the surface of the transmission rod, the metal sleeve is rotatably connected to the transmission frame, and a protective plate is fixedly connected to the right side of the transmission rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention allows the user to activate a servo motor when a workpiece needs to be ejected. The servo motor drives a rotating disk, which in turn drives a transmission rod. The transmission rod then moves the transmission frame up and down, which in turn drives the ejector rod to eject the workpiece. This allows for quick and easy removal of the workpiece. Simultaneously, a limiting rod can support and limit the movement of the limiting ring, ensuring the transmission frame can move and accurately eject the workpiece, thus achieving an automatic ejection effect. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a three-dimensional rear view schematic diagram of the structure of this utility model; Figure 3 This is a three-dimensional bottom view of the structure of this utility model; Figure 4 The structure of this utility model Figure 3 Enlarged diagram of point A in the middle.
[0014] In the diagram: 1. Lower injection mold component; 2. Upper injection mold component; 3. Ejector rod; 4. Ejector assembly; 41. Transmission frame; 42. Rotary disk; 43. Transmission rod; 44. Servo motor; 5. Limiting assembly; 51. Limiting ring; 52. Limiting rod; 6. Stabilizing frame; 7. Support plate; 8. Metal sleeve; 9. Protective plate. Detailed Implementation
[0015] 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.
[0016] Please see Figure 1-4 An injection mold with an ejection mechanism includes a lower injection mold part 1 and an upper injection mold part 2. An ejection rod 3 is slidably connected to the bottom of the inner wall of the lower injection mold part 1. An ejection assembly 4 is provided at the bottom of the ejection rod 3. A limit assembly 5 is provided at the bottom of the lower injection mold part 1. Ejection assembly 4 is used to eject the workpiece; The limiting component 5 is used to limit the ejection component 4.
[0017] Please see Figure 4 The ejector assembly 4 includes a transmission frame 41, which is fixedly connected to the bottom of the ejector rod 3. A rotating disk 42 is provided on the left side of the transmission frame 41, and a transmission rod 43 is fixedly connected to the right side of the rotating disk 42. The transmission rod 43 is slidably connected to the transmission frame 41, and a servo motor 44 is driven to the left side of the rotating disk 42.
[0018] Furthermore, the ejector assembly 4 enables effective transmission of the transmission frame 41, allowing the transmission frame 41 to quickly perform lifting and lowering operations in a short time. This design greatly facilitates the ejection process of the ejector rod 3, thus providing users with a more convenient and efficient user experience. The ingenious layout of the ejector assembly 4 ensures the smoothness and precision of the transmission process, enabling the entire transmission system to exhibit excellent performance during operation.
[0019] Please see Figure 4 The limiting component 5 includes a limiting ring 51, which is fixedly connected to the outside of the transmission frame 41. A limiting rod 52 is fixedly connected to the bottom of the injection mold part 1, and the limiting rod 52 is slidably connected to the limiting ring 51.
[0020] Furthermore, the setting of the limiting component 5 enables precise limiting control of the front and rear sides of the transmission frame 41. This design significantly improves the stability of the transmission frame 41 and effectively avoids the shaking problem that occurs during operation, thus providing users with a stable and reliable operating environment. The careful design of the limiting component 5 ensures the stability of the transmission frame 41 in various positions, making the entire transmission system perform excellently during operation and greatly improving the user's operating convenience and safety.
[0021] Please see Figure 4 A stabilizing frame 6 is fixedly connected to the outside of the servo motor 44, and the top of the stabilizing frame 6 is fixedly connected to the bottom of the lower injection mold part 1.
[0022] Furthermore, the stabilizer 6 effectively limits and protects the servo motor 44, ensuring its stability during operation and enabling it to rotate stably. This, in turn, ensures the smooth operation of the entire transmission system. The well-designed stabilizer 6 not only enhances the stability of the servo motor 44 but also provides it with a good working environment, ensuring its reliability and durability during long-term operation.
[0023] Please see Figure 4 The bottom of the injection mold part 1 is horizontally fixedly connected to a support plate 7, and the support plate 7 is fixedly connected to the top of the limiting rod 52.
[0024] Furthermore, the stable installation of the support frame provides strong support for the bottom of the limit rod 52. This design significantly improves support efficiency and effectively avoids the shaking problem of the bottom of the limit rod 52 during operation, thereby greatly improving the safety of the entire system. The careful design of the support frame ensures the stability of the limit rod 52 in various positions, making the entire transmission system perform excellently during operation and providing users with safe and reliable operation assurance.
[0025] Please see Figure 4 A metal sleeve 8 is fitted on the surface of the transmission rod 43. The metal sleeve 8 is rotatably connected to the transmission frame 41. A protective plate 9 is fixedly connected to the right side of the transmission rod 43.
[0026] Furthermore, the metal sleeve 8 effectively reduces the wear between the transmission rod 43 and the transmission frame 41. This design significantly improves wear efficiency, reduces friction between the transmission rod 43 and the transmission frame 41, and extends the service life of the components, thus providing users with a more durable and stable user experience. The careful selection and layout of the metal sleeve 8 ensures the smooth operation of the transmission system, reduces the maintenance frequency, and improves the reliability and durability of the entire system.
[0027] The specific implementation process of this utility model is as follows: When it is necessary to eject the workpiece, the user first starts the servo motor 44. After receiving the start signal, the servo motor 44 starts to run and drives the connected rotary disk 42 to rotate. The rotary disk 42, through its own rotational movement, further drives the connected transmission rod 43. Under the drive of the rotary disk 42, the transmission rod 43 generates linear motion, thereby driving the transmission frame 41 to move up and down. The up and down movement of the transmission frame 41 directly acts on the ejector rod 3, enabling the ejector rod 3 to smoothly perform the ejection action and eject the workpiece from the working position. To facilitate quick and convenient workpiece removal by users, and to ensure the accuracy and safety of the ejection process, the system is also equipped with a limit rod 52 and a limit ring 51. The limit rod 52 supports and limits the limit ring 51, ensuring that the transmission frame 41 does not exceed the preset range during its up-and-down movement. In this way, the movement trajectory of the transmission frame 41 can be precisely controlled, thereby ensuring that the ejection rod 3 can perform the ejection operation with extremely high precision, ensuring that the workpiece is accurately ejected. Through this series of precise transmission and control mechanisms, the system can achieve the effect of automatic ejection, greatly improving work efficiency and ease of operation.
[0028] 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 with an ejection mechanism, characterized in that: It includes a lower injection mold (1) and an upper injection mold (2). The bottom of the inner wall of the lower injection mold (1) is slidably connected to an ejector rod (3). An ejector assembly (4) is provided at the bottom of the ejector rod (3). A limit assembly (5) is provided at the bottom of the lower injection mold (1). The ejection assembly (4) is used to eject the workpiece; The limiting component (5) is used to limit the ejection component (4).
2. The injection mold with an ejection mechanism according to claim 1, characterized in that: The ejection assembly (4) includes a transmission frame (41), which is fixedly connected to the bottom of the ejection rod (3). A rotating disk (42) is provided on the left side of the transmission frame (41), and a transmission rod (43) is fixedly connected to the right side of the rotating disk (42). The transmission rod (43) is slidably connected to the transmission frame (41), and a servo motor (44) is driven to the left side of the rotating disk (42).
3. The injection mold with an ejection mechanism according to claim 1, characterized in that: The limiting component (5) includes a limiting ring (51), which is fixedly connected to the outside of the transmission frame (41). The bottom of the lower injection mold part (1) is fixedly connected to a limiting rod (52), which is slidably connected to the limiting ring (51).
4. An injection mold with an ejection mechanism according to claim 2, characterized in that: A stabilizing frame (6) is fixedly connected to the outside of the servo motor (44), and the top of the stabilizing frame (6) is fixedly connected to the bottom of the lower injection mold part (1).
5. An injection mold with an ejection mechanism according to claim 3, characterized in that: The bottom of the injection mold part (1) is horizontally fixedly connected to a support plate (7), and the support plate (7) is fixedly connected to the top of the limiting rod (52).
6. An injection mold with an ejection mechanism according to claim 2, characterized in that: The surface of the transmission rod (43) is fitted with a metal sleeve (8), which is rotatably connected to the transmission frame (41). A protective plate (9) is fixedly connected to the right side of the transmission rod (43).