A multi-stage venting groove anti-trapped air assembly for injection molds
By designing a multi-stage venting groove anti-air trapping component for injection molds, and utilizing the combination of a limit frame and a carrying plate, the venting plates can be quickly disassembled and cleaned, solving the problem of cumbersome operation in existing technologies and improving work efficiency and molding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI FULIDE PLASTIC TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-26
AI Technical Summary
The existing injection molds are cumbersome to disassemble and clean the venting fins, which affects work efficiency and makes it difficult to efficiently remove air from the mold cavity, resulting in insufficient glue in the product.
A multi-stage venting groove anti-air trapping component for injection molds was designed. Through the cooperation of the limiting frame and the carrying plate, the venting plate can be quickly disassembled and cleaned. Combined with the multi-stage venting groove structure, it ensures that air is quickly discharged.
It simplifies the disassembly and cleaning process of the exhaust plate, improves work efficiency, reduces operation time, prevents product glue shortage, and improves molding quality.
Smart Images
Figure CN224276019U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of injection mold technology, and more specifically, to a multi-stage venting groove anti-trapped air assembly for injection molds. Background Technology
[0002] As the requirements for plastic products become increasingly stringent, technically, not only must the products meet functional requirements, but they must also possess an aesthetically pleasing appearance free of defects. In the process of injection molding, especially for products with large planar areas and thin thicknesses, the unique characteristics of plastic molding necessitate excellent air venting. If air cannot be expelled from the mold cavity during injection molding, it creates trapped air. With the continuous development of injection molding technology and the ever-increasing precision and quality requirements of plastic products, the impact of trapped air on product molding is becoming increasingly significant.
[0003] A search revealed that CN205735858U discloses "a venting structure for injection molding of mold cavities, belonging to the field of injection molding molds, which includes a venting seat, a positioning plate, and at least two venting plates. The venting seat is provided with a locking groove for the venting plates to fit and engage side by side... Each venting plate is provided with an air-guiding groove for introducing air into the mold cavity and an venting groove for discharging the air introduced into the air-guiding groove, which can quickly discharge the air in the mold cavity and prevent the product from lacking glue due to trapped air. The venting density can be as low as 1mm." However, when it is necessary to disassemble and replace a certain venting plate among multiple venting plates or to clean the venting groove on the venting plate, the positioning plate needs to be pulled out, and then the venting plates need to be removed one by one until the venting plate that needs to be disassembled, replaced, or cleaned is obtained. The operation is cumbersome, and the corresponding venting plate cannot be directly removed. This consumes a lot of time, reduces work efficiency, and is inconvenient for later maintenance.
[0004] To address the aforementioned issues, this application provides a multi-stage venting groove anti-trapped air component for injection molds. Utility Model Content
[0005] One objective of this application is to provide a multi-stage venting groove anti-trapped air component for injection molds, comprising a venting seat, a rectangular groove on the top of the venting seat, an installation groove on the inner bottom wall of the rectangular groove, a limit frame slidably connected inside the rectangular groove, grooves symmetrically formed on the inner bottom wall of the rectangular groove, two fixing rods symmetrically fixedly connected to the top of the limit frame, a fixing plate fixedly connected to the top of the two fixing rods, circular holes symmetrically formed on the limit frame, a limit rod inserted into the circular holes, a carrying plate slidably connected to the two fixing rods, a spring fixedly connected between the carrying plate and the fixing plate, an air outlet groove on the inner bottom wall of the installation groove, an air outlet hole on the inner bottom wall of the air outlet groove, multiple venting plate assemblies installed inside the installation groove, and a limit assembly provided at the right end of the venting seat.
[0006] Furthermore, each of the two fixed rods has a limiting hole, and the handle is slidably connected inside the two limiting holes. Both ends of the handle are fixedly connected to the two limiting rods respectively.
[0007] Furthermore, the inner wall of the rectangular groove is symmetrically provided with sliding grooves, and a sliding rod is slidably connected inside the sliding groove.
[0008] Furthermore, the slide bar is configured in a "T" shape, the limiting frame is configured in a "U" shape, and the two slide bars are respectively fixedly connected to the two sides of the limiting frame.
[0009] Furthermore, the limiting component includes a limiting groove opened at the right end of the exhaust seat, a slot is opened on the inner bottom wall of the limiting groove, a matching plug is inserted into the slot, a limiting block that matches the limiting groove is fixedly connected to the top of the plug, and a positioning plate is fixedly connected to the top of the limiting block.
[0010] Furthermore, the top of the exhaust seat is provided with a groove, and a matching movable plate is provided inside the groove. The movable plate is arranged in an "L" shape. The left end of the movable plate is fixedly connected to the limiting frame, and an indicator plate is fixedly connected to the top of the movable plate.
[0011] Furthermore, both ends of the exhaust seat are fixedly connected to mounting plates, and mounting holes are provided on the mounting plates.
[0012] The beneficial effects of this application are:
[0013] Simultaneously, the handle and fixing plate are held together, and the handle is moved upward. The upward movement of the handle compresses the spring, causing it to contract. The upward movement of the handle also moves the two limiting rods upward, causing them to move out of the two grooves, thus releasing the limiting frame. Then, the limiting frame moves to the left, which in turn moves the moving plate and the indicator plate. The position indicated by the indicator plate can be used to determine whether the exhaust plate assembly to be disassembled is blocked by the limiting frame. When the exhaust plate assembly to be disassembled is released from the limit, that is, when the limiting frame moves to the left and is no longer at the top of the exhaust plate assembly to be disassembled, the exhaust plate assembly to be disassembled can be moved upward. This makes it convenient to disassemble, clean, or replace any exhaust plate assembly. Compared with the existing technology, which requires pulling out the positioning plate and then taking out the exhaust plates one by one when disassembling or replacing one of the multiple exhaust plates or cleaning the exhaust grooves on the exhaust plate, the operation is more convenient, faster, and more efficient, improving work efficiency and reducing working time. Attached Figure Description
[0014] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.
[0015] In the attached diagram:
[0016] Figure 1 This is a schematic diagram of the overall structure of this application;
[0017] Figure 2 This is a schematic diagram of the exhaust plate assembly, positioning plate, and exhaust seat structure of this application;
[0018] Figure 3 For the purposes of this application Figure 2 Enlarged schematic diagram of the structure of region A in the middle;
[0019] Figure 4 This is a partial structural diagram of this application;
[0020] Figure 5 For the purposes of this application Figure 4 Enlarged schematic diagram of the structure of region B in the middle.
[0021] Explanation of the labels in the diagram:
[0022] 1. Exhaust seat; 2. Exhaust plate assembly; 3. Mounting plate; 4. Positioning plate; 5. Moving plate; 6. Groove; 7. Limiting bracket; 8. Mounting groove; 9. Exhaust groove; 10. Indicator plate; 11. Limiting block; 12. Insert block; 13. Rectangular groove; 14. Handle plate; 15. Fixing plate; 16. Limiting rod; 17. Groove; 18. Slide groove; 19. Slide rod; 20. Spring; 21. Limiting hole; 22. Fixing rod. Detailed Implementation
[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0024] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] Example:
[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This application discloses a multi-stage venting groove anti-trapped air assembly for injection molds, including a venting seat 1. A rectangular groove 13 is formed at the top of the venting seat 1. An installation groove 8 is formed on the inner bottom wall of the rectangular groove 13. A limit frame 7 is slidably connected inside the rectangular groove 13. Grooves 17 are symmetrically formed on the inner bottom wall of the rectangular groove 13. Two fixing rods 22 are symmetrically fixedly connected to the top of the limit frame 7. A fixing plate 15 is fixedly connected to the top of the two fixing rods 22. Circular holes are symmetrically formed on the limit frame 7, and limit rods 16 are inserted into the interior of the circular holes. A carrying plate 14 is slidably connected to the two fixing rods 22. The carrying plate 14 and the fixing plate 15 are fixedly connected. A spring 20 is fixedly connected to the mounting groove 8. An air outlet groove 9 is provided on the inner bottom wall of the mounting groove 8. Simultaneously, the handle 14 and the fixing plate 15 are held, and the handle 14 is moved upwards. The upward movement of the handle 14 compresses the spring 20, causing it to contract. The upward movement of the handle 14 also moves the two limiting rods 16 upwards, causing them to move out of the two grooves 17, thus releasing the limiting frame 7. Then, the limiting frame 7 moves to the left, causing the moving plate 5 and the indicator plate 10 to move. The position indicated by the indicator plate 10 can determine whether the exhaust plate assembly 2 to be disassembled is limited. The limit bracket 7 is used to limit and block the exhaust plate assembly 2 that needs to be disassembled. When the limit bracket 7 is released, that is, when the limit bracket 7 moves to the left and is no longer at the top of the exhaust plate assembly 2 that needs to be disassembled, the exhaust plate assembly 2 that needs to be disassembled can be moved upward, so as to facilitate the disassembly, cleaning or replacement of any exhaust plate assembly 2. The operation is convenient. The left end of the exhaust seat 1 and the positioning plate 4 are provided with rectangular holes that communicate with the air outlet groove 9, so as to facilitate the air inside the air outlet groove 9 to be discharged through the two rectangular holes. The inner bottom wall of the air outlet groove 9 is provided with an air outlet hole. Multiple exhaust plate assemblies 2 are installed inside the mounting groove 8. The exhaust plate assemblies 2 are provided with exhaust plates for discharging air into the exhaust plate 2. The air inlet groove for introducing air into the mold cavity and the air outlet groove for discharging the air introduced into the air inlet groove can quickly discharge the air in the mold cavity and prevent the product from being short of glue due to trapped air. The air can be discharged not only through the openings at both ends of the air outlet groove on the air outlet plate assembly 2, but also through the openings at both ends of the air outlet groove 9, or through the air outlet hole at the bottom of the air outlet groove 9, realizing multi-stage venting. The air outlet plate assembly 2 is existing technology, and its structure and working principle are based on a venting structure for injection molding of mold cavity with publication (announcement) number CN205735858U, which will not be described in detail here; a limit component is provided at the right end of the venting seat 1.
[0028] Please see Figure 5Each of the two fixed rods 22 has a limiting hole 21. The handle 14 is slidably connected inside the two limiting holes 21. The two ends of the handle 14 are fixedly connected to the two limiting rods 16 respectively. The inner wall of the rectangular groove 13 is symmetrically provided with a sliding groove 18. The sliding rod 19 is slidably connected inside the sliding groove 18. The cooperation of the sliding groove 18 and the sliding rod 19 limits the limiting frame 7 to slide inside the rectangular groove 13. The sliding rod 19 is set in a "T" shape, and the limiting frame 7 is set in a "U" shape. The two sliding rods 19 are fixedly connected to the two sides of the limiting frame 7 respectively.
[0029] Please see Figure 3 The limiting component includes a limiting groove at the right end of the exhaust seat 1. The inner bottom wall of the limiting groove has a slot. A matching insert block 12 is inserted into the slot. A limiting block 11 that matches the limiting groove is fixedly connected to the top of the insert block 12. A positioning plate 4 is fixedly connected to the top of the limiting block 11. The positioning plate 4 limits the rightmost exhaust plate assembly 2, thereby positioning all exhaust plate assemblies 2. The limiting block 11, together with the limiting groove, improves the stability of the positioning plate 4. The insert block 12, together with the slot, limits the limiting block 11, thereby further limiting the positioning plate 4 and further improving the stability of the positioning plate 4 installation.
[0030] Please see Figure 1 , Figure 3 and Figure 5 The top of the exhaust seat 1 has a groove 6, and a matching movable plate 5 is set inside the groove 6. The movable plate 5 is arranged in an "L" shape. The left end of the movable plate 5 is fixedly connected to the limiting frame 7. The top of the movable plate 5 is fixedly connected to the indicator plate 10. The indicator plate 10 is used to indicate the exhaust plate assembly 2. When the limiting frame 7 moves, it drives the movable plate 5 to move inside the groove 6, thereby driving the indicator plate 10 to move, so as to know the position of the right end of the limiting frame 7, that is, to know where the right end of the limiting frame 7 has moved to, so as to determine whether the exhaust plate assembly 2 that needs to be disassembled is limited and blocked by the limiting frame 7. Both ends of the exhaust seat 1 are fixedly connected to the mounting plate 3. The mounting plate 3 has mounting holes, and the exhaust seat 1 can be fixed by the cooperation of the mounting holes and bolts.
[0031] The implementation principle of this application embodiment is as follows: simultaneously hold the carrying plate 14 and the fixing plate 15, and drive the carrying plate 14 to move upward. The upward movement of the carrying plate 14 compresses the spring 20, and the spring 20 is compressed and contracts. The upward movement of the carrying plate 14 drives the two limiting rods 16 to move upward, so that the two limiting rods 16 move out from the inside of the two grooves 17, thereby releasing the limitation on the limiting frame 7. Then, the limiting frame 7 is driven to move to the left. The movement of the limiting frame 7 drives the moving plate 5 and the indicator plate 10 to move. According to the position indicated by the indicator plate 10, it can be determined whether the exhaust plate assembly 2 that needs to be disassembled is limited and blocked by the limiting frame 7, so as to know the position of the right end of the limiting frame 7, that is, to know the position of the right end of the limiting frame 7, which makes it easy to determine whether the exhaust plate assembly 2 that needs to be disassembled is limited and blocked by the limiting frame 7.
[0032] When the exhaust plate assembly 2 that needs to be disassembled is released from its limit, that is, when the limit bracket 7 moves to the left and is no longer located at the top of the exhaust plate assembly 2 that needs to be disassembled, it can drive the exhaust plate assembly 2 that needs to be disassembled to move upward, thereby facilitating the disassembly, cleaning or replacement of any exhaust plate assembly 2, making the operation convenient.
[0033] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and application concept of this application, should be included within the scope of protection of this application.
Claims
1. A multi-stage venting groove anti-trapped air assembly for injection molds, comprising a venting seat (1), characterized in that: The top of the exhaust seat (1) is provided with a rectangular groove (13), and the inner bottom wall of the rectangular groove (13) is provided with an installation groove (8). A limit frame (7) is slidably connected inside the rectangular groove (13). The inner bottom wall of the rectangular groove (13) is symmetrically provided with grooves (17). The top of the limit frame (7) is symmetrically fixedly connected with two fixing rods (22), and the top ends of the two fixing rods (22) are fixedly connected with fixing plates (15). The limit frame (7) is symmetrically provided with... There is a round hole, and a limit rod (16) is inserted into the inside of the round hole. A handle (14) is slidably connected to the two fixed rods (22). A spring (20) is fixedly connected between the handle (14) and the fixed plate (15). An air outlet groove (9) is opened on the inner bottom wall of the mounting groove (8). An air outlet hole is opened on the inner bottom wall of the air outlet groove (9). Multiple exhaust plate assemblies (2) are installed inside the mounting groove (8). A limit assembly is provided at the right end of the exhaust seat (1).
2. The multi-stage venting groove anti-trapped air assembly for injection molds according to claim 1, characterized in that: Each of the two fixed rods (22) has a limiting hole (21), and the carrying plate (14) is slidably connected inside the two limiting holes (21). The two ends of the carrying plate (14) are respectively fixedly connected to the two limiting rods (16).
3. The multi-stage venting groove anti-trapped air assembly for injection molds according to claim 1, characterized in that: The inner wall of the rectangular groove (13) is symmetrically provided with sliding grooves (18), and a sliding rod (19) is slidably connected inside the sliding groove (18).
4. The multi-stage venting groove anti-trapped air assembly for injection molds according to claim 3, characterized in that: The slide bar (19) is arranged in a "T" shape, and the limiting frame (7) is arranged in a "U" shape. The two slide bars (19) are respectively fixedly connected to the two sides of the limiting frame (7).
5. The multi-stage venting groove anti-trapped air assembly for injection molds according to claim 1, characterized in that: The limiting component includes a limiting groove opened at the right end of the exhaust seat (1), a slot is opened on the inner bottom wall of the limiting groove, a matching plug (12) is inserted into the slot, a limiting block (11) that matches the limiting groove is fixedly connected to the top of the plug (12), and a positioning plate (4) is fixedly connected to the top of the limiting block (11).
6. The multi-stage venting groove anti-trapped air assembly for injection molds according to claim 1, characterized in that: The top of the exhaust seat (1) is provided with a groove (6), and a matching movable plate (5) is provided inside the groove (6). The movable plate (5) is arranged in an "L" shape. The left end of the movable plate (5) is fixedly connected to the limiting frame (7), and an indicator plate (10) is fixedly connected to the top of the movable plate (5).
7. The multi-stage venting groove anti-trapped air assembly for injection molds according to claim 1, characterized in that: Both ends of the exhaust seat (1) are fixedly connected to mounting plates (3), and mounting holes are provided on the mounting plates (3).