mold

Abstract

The application provides a mold for improving forming stability, comprising a male mold assembly, a female mold assembly, a plugging assembly and a blocking assembly. The female mold assembly comprises a female mold piece, an infusion piece and a pressure injection piece. The female mold piece is matched with the male mold assembly. The female mold piece and the male mold assembly form a forming cavity when they are closed. The infusion piece is embedded in the female mold piece and communicates with the forming cavity. The infusion piece is used for conveying a molten liquid to the forming cavity. The pressure injection piece is movably arranged in the infusion piece along the opening direction. The pressure injection piece is configured to inject the molten liquid into the forming cavity. The plugging assembly comprises a plugging piece, a moving piece, a top plate piece and an elastic piece. The plugging piece is movably arranged in the male mold assembly along the opening direction and is arranged in correspondence with the infusion piece along the opening direction. One end of the moving piece is movably arranged in the male mold assembly along the opening direction and is connected with the plugging piece. The other end of the moving piece is movably connected with the top plate piece. The elastic piece is connected with the moving piece and the top plate piece respectively. The elastic piece is configured to push the moving piece to drive the plugging piece to move close to the infusion piece, so that the plugging piece blocks the infusion piece.

Description

Technical Field

[0001] This utility model relates to the field of molding equipment technology, and in particular to a mold. Background Technology

[0002] When molding a product, the male mold component and the female mold component are first closed, then molten liquid is poured in through the sprue bushing, and then the injection punch is used to push the molten liquid into the molding cavity so that the molten liquid is formed and solidified in the molding cavity.

[0003] However, when molten liquid is poured through the sprue bushing, some of the molten liquid flows directly into the molding cavity and solidifies prematurely as part of the product. The injection punch then pushes the remaining molten liquid into the molding cavity, causing the remaining molten liquid to solidify a second time as another part of the product. This results in the product being solidified in two stages, leading to structural delamination within the product. Furthermore, the prematurely solidified product can clog the sprue bushing, resulting in poor molding quality, inability to form the product, and other issues, thereby reducing molding stability. Utility Model Content

[0004] In view of the above situation, it is necessary to provide a mold to improve molding stability.

[0005] This application provides a mold, including: Common mold components; A female mold assembly includes a female mold component, a pouring component, and an injection component. The female mold component is appropriately fitted to the male mold assembly. When the female mold component and the male mold assembly are closed, they form a molding cavity. The pouring component is embedded in the female mold component and communicates with the molding cavity. The pouring component is used to deliver molten liquid to the molding cavity. The injection component is movably inserted through the pouring component along the mold opening direction. The injection component is configured to inject the molten liquid into the molding cavity. A sealing assembly includes a sealing member, a movable member, a top plate member, and an elastic member. The sealing member is movably inserted through the male mold assembly along the mold opening direction and is correspondingly arranged with the injection member along the mold opening direction. One end of the movable member is movably inserted through the male mold assembly along the mold opening direction and connected to the sealing member. The other end of the movable member is movably connected to the top plate member. The elastic member is connected to both the movable member and the top plate member. The elastic member is configured to push the movable member to move the sealing member closer to the injection member, so that the sealing member seals the injection member.

[0006] In use, the aforementioned mold first opens with the male and female mold components. The elastic element pushes the movable element, causing the sealing element to move closer to the injection part, extending the sealing element out of the male mold component. Then, the male and female mold components close to form a molding cavity, while the sealing element blocks the injection part, preventing some of the molten liquid from flowing into the molding cavity beforehand. Next, after a preset volume of molten liquid is delivered into the injection part, the injection component pushes the molten liquid into the molding cavity. Simultaneously, the sealing element, pushed by the molten liquid, compresses the elastic element and retracts into the male mold component, filling the molding cavity and solidifying to form the product. Finally, the male and female mold components open again, and the elastic element pushes the movable element, causing the sealing element to move closer to the injection part, pushing the product out of the molding cavity. In this way, the mold pre-seals the injection part with the sealing component, and once the volume of molten liquid reaches the preset volume, the injection component pushes the molten liquid into the molding cavity, completing the product molding process in one step. This prevents the molten liquid from entering the molding cavity in segments, thus preventing product delamination and improving molding stability.

[0007] In some embodiments, the injection component is provided with a conveying groove and an injection channel. The conveying groove extends through the injection component along the mold opening direction. The conveying groove is configured to allow the injection component to pass through. The injection channel is located on the side wall of the injection component and communicates with the conveying groove. The injection channel is used to convey the molten liquid to the conveying channel.

[0008] In some embodiments, the injection element is movably inserted through the conveying groove along the mold opening direction and is interference-fitted with the groove wall of the conveying groove.

[0009] In some embodiments, in the direction perpendicular to the mold opening direction, the cross-sectional area of ​​the sealing element is larger than the cross-sectional area of ​​the conveying groove.

[0010] In some embodiments, the top plate member includes: The top plate is located on the side of the male mold assembly opposite to the female mold component; A connecting body is disposed on the side of the top plate facing the mother mold and is detachably connected to the top plate. A receiving groove is formed between the connecting body and the top plate. The receiving groove is configured to receive the elastic member. The end of the movable member away from the sealing member is inserted into the receiving groove.

[0011] In some embodiments, the active component includes: The movable body moves along the mold opening direction, passes through the male mold assembly, and is inserted into the top plate component; A limiting body is disposed in the receiving groove and connected to the movable body. The limiting body abuts against the elastic member and is configured to abut against the groove wall of the receiving groove near the sealing member.

[0012] In some embodiments, the storage slot includes a receiving slot, a through slot, and a placement slot. The receiving slot is located on the side of the connector facing the top plate. The through slot passes through the connector and communicates with the receiving slot. The placement slot is located on the side of the top plate facing the connector and communicates with the receiving slot. In the direction perpendicular to the direction of the through slot pointing to the receiving slot, the cross-sectional area of ​​the receiving slot is larger than the cross-sectional area of ​​the through slot and the cross-sectional area of ​​the placement slot.

[0013] In some embodiments, the common mold component includes: The male mold part is appropriately matched with the female mold part, and the sealing part and the movable part are both movably inserted through the male mold part along the mold opening direction; A support member is disposed on the side of the male mold member opposite to the female mold member and connected to the male mold member, and the support member is configured to abut against the top plate member.

[0014] In some embodiments, the number of elastic members and movable members are both multiple and are arranged in a one-to-one correspondence. The multiple movable members are evenly arranged, one end of each movable member is movably connected to the top plate member and connected to the corresponding elastic member, and the other end of each movable member is connected to the sealing member.

[0015] In some embodiments, the sealing member has a supporting surface on the side near the parent mold member, and the supporting surface is configured to abut against the infusion member. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the mold provided in an embodiment of this application.

[0017] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the mold along the AA direction.

[0018] Figure 3 for Figure 2 The diagram shown is an enlarged view of the mold at position B.

[0019] Explanation of main component symbols: Mold 100, male mold assembly 10, male mold part 11, support part 12, female mold assembly 20, female mold part 21, molding cavity 211, filling part 22, conveying groove 221, filling groove 222, injection part 23, sealing assembly 30, sealing part 31, supporting surface 311, moving part 32, moving body 321, limiting body 322, top plate part 33, top plate body 331, connecting body 332, receiving groove 333, receiving groove 3331, through groove 3332, placement groove 3333, elastic part 34. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, it should be understood that the terms indicating 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 or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0024] Please see Figure 1 This application provides a mold 100, which includes a male mold assembly 10, a female mold assembly 20 and a sealing assembly 30. The mold 100 can complete the product molding operation in one go, thereby improving the molding stability.

[0025] Please see Figure 1 and Figure 2The female mold assembly 20 includes a female mold part 21, a pouring part 22, and an injection part 23. The female mold part 21 is appropriately matched with the male mold assembly 10. When the female mold part 21 and the male mold assembly 10 are closed, a molding cavity 211 is formed. The pouring part 22 is embedded in the female mold part 21 and communicates with the molding cavity 211. The pouring part 22 is used to transport molten liquid to the molding cavity 211. The injection part 23 is movably inserted through the pouring part 22 along the mold opening direction of the mold 100. The injection part 23 is configured to inject molten liquid into the molding cavity 211. The sealing assembly 30 includes a sealing member 31, a movable member 32, a top plate member 33, and an elastic member 34. The sealing member 31 is movably inserted through the male mold assembly 10 along the mold opening direction and is correspondingly arranged with the injection member 22 along the mold opening direction. One end of the movable member 32 is movably inserted through the male mold assembly 10 along the mold opening direction and connected to the sealing member 31. The other end of the movable member 32 is movably connected to the top plate member 33. The elastic member 34 is connected to the movable member 32 and the top plate member 33 respectively. The elastic member 34 is configured to push the movable member 32 to move the sealing member 31 closer to the injection member 22, so that the sealing member 31 seals the injection member 22. For example, the elastic member 34 can be a spring.

[0026] When the aforementioned mold 100 is used, firstly, the male mold assembly 10 and the female mold assembly 20 open, and the elastic member 34 pushes the movable member 32 to move the sealing member 31 closer to the pouring member 22, so that the sealing member 31 extends out of the male mold assembly 10; then, the male mold assembly 10 and the female mold assembly 20 close and form a molding cavity 211, while the sealing member 31 seals the pouring member 22 to prevent some of the molten liquid in the pouring member 22 from flowing into the molding cavity 211 beforehand; then, inside the pouring member 22... After delivering a preset volume of molten liquid, the injection component 23 pushes the molten liquid into the molding cavity 211. Simultaneously, the sealing component 31, pushed by the molten liquid, compresses the elastic component 34 and retracts into the male mold assembly 10, allowing the molten liquid to fill the molding cavity 211 and solidify to form the product. Finally, the male mold assembly 10 and the female mold assembly 20 open the mold. The elastic component 34 pushes the movable component 32, causing the sealing component 31 to move closer to the pouring component 22, so that the sealing component 31 pushes the product out of the molding cavity 211. In this way, the mold 100 pre-seals the pouring component 22 through the sealing component 30. After the volume of the molten liquid reaches the preset volume, the injection component 23 pushes the molten liquid into the molding cavity 211, completing the product molding operation in one go. This prevents the molten liquid from entering the molding cavity 211 in sections, which would cause the product to separate, thereby improving molding stability.

[0027] Please see Figure 2 In some embodiments, the injection component 22 is provided with a conveying groove 221 and an injection groove 222. The conveying groove 221 extends through the injection component 22 along the mold opening direction and is configured to allow the injection component 23 to pass through. The injection groove 222 is located on the side wall of the injection component 22 and communicates with the conveying groove 221. The injection groove 222 is used to convey molten liquid to the conveying groove 221.

[0028] Thus, the above settings optimize the structural layout of the infusion component 22 and the injection component 23, prevent the injection component 23 from interfering with the infusion component 22 in conveying the molten liquid, ensure that the infusion tank 222 conveys the molten liquid to the delivery tank 221, facilitate the injection component 23 to stably push the molten liquid to the molding cavity 211, optimize the flow path of the molten liquid, and thereby improve the filling efficiency and molding accuracy.

[0029] In some embodiments, the injection member 23 is movably inserted through the conveying groove 221 along the mold opening direction and is interference-fitted with the groove wall of the conveying groove 221.

[0030] Thus, through the above-mentioned arrangement, the injection element 23 can seal the conveying groove 221, preventing the molten liquid from overflowing and flowing back from the connection between the injection element 23 and the groove wall of the conveying groove 221 during the injection process, thereby ensuring that the injection element 23 stably injects the molten liquid into the molding cavity 211, thereby improving the filling stability of the molten liquid and thus improving the molding stability.

[0031] In some embodiments, the cross-sectional area of ​​the sealing member 31 is larger than the cross-sectional area of ​​the conveying groove 221 in the direction perpendicular to the mold opening direction.

[0032] Thus, through the above arrangement, the cross-sectional area of ​​the sealing component 31 is larger than the cross-sectional area of ​​the conveying channel 221, which can ensure that the sealing component 31 completely covers the outlet of the conveying channel 221, so that the sealing component 31 stably seals the conveying channel 221, improves the sealing reliability of the sealing component 31, and prevents the molten liquid from flowing into the molding cavity 211 in advance and solidifying, thereby improving the molding stability.

[0033] Please see Figure 2 and Figure 3 In some embodiments, the top plate component 33 includes a top plate body 331 and a connecting body 332. The top plate body 331 is located on the side of the male mold assembly 10 away from the female mold component 21, and the connecting body 332 is located on the side of the top plate body 331 facing the female mold component 21 and is detachably connected to the top plate body 331. A receiving groove 333 is formed between the connecting body 332 and the top plate body 331. The receiving groove 333 is configured to receive the elastic member 34, and the end of the movable member 32 away from the sealing member 31 is inserted into the receiving groove 333.

[0034] Thus, through the above-mentioned arrangement, the top plate 331 and the connecting body 332 are detachably connected, enabling the top plate 33 to form a split structure, which facilitates the storage of the elastic element 34 into the storage groove 333 and the assembly of the movable element 32 to the top plate 33, thereby improving the ease of disassembly and assembly and facilitating maintenance.

[0035] Please see Figure 3In some embodiments, the movable member 32 includes a movable body 321 and a limiting body 322. The movable body 321 is movably inserted through the male mold assembly 10 and inserted into the top plate member 33 along the mold opening direction. The limiting body 322 is disposed in the receiving groove 333 and connected to the movable body 321. The limiting body 322 abuts against the elastic member 34 and is configured to abut against the groove wall of the receiving groove 333 near the sealing member 31.

[0036] Thus, through the above configuration, the limiting body 322 can drive the movable body 321 to move closer to the sealing member 31 under the drive of the elastic member 34. After the movable body 321 moves a preset distance, the limiting body 322 abuts against the groove wall of the receiving groove 333 near the sealing member 31, thereby limiting the movement distance between the movable body 321 and the sealing member 31, preventing the sealing member 31 from moving excessively and colliding or interfering with other components, thereby ensuring the stability of the mold 100 in use.

[0037] Please see Figure 2 and Figure 3 In some embodiments, the receiving groove 333 includes a receiving groove 3331, a through groove 3332, and a placement groove 3333. The receiving groove 3331 is located on the side of the connecting body 332 facing the top plate body 331. The through groove 3332 passes through the connecting body 332 and communicates with the receiving groove 3331. The placement groove 3333 is located on the side of the top plate body 331 facing the connecting body 332 and communicates with the receiving groove 3331. In the direction perpendicular to the direction of the through groove 3332 pointing to the receiving groove 3331, the cross-sectional area of ​​the receiving groove 3331 is larger than the cross-sectional area of ​​the through groove 3332 and the cross-sectional area of ​​the placement groove 3333.

[0038] Thus, through the above arrangement, the cross-sectional area of ​​the receiving groove 3331 is larger than the cross-sectional area of ​​the through groove 3332, ensuring that the groove wall of the receiving groove 3331 abuts against the limiting body 322, thereby limiting the movement distance of the movable body 321. The cross-sectional area of ​​the receiving groove 3331 is larger than the cross-sectional area of ​​the placement groove 3333, which can restrict the position of the elastic member 34, ensuring that the elastic member 34 always abuts against the end of the limiting body 322 away from the movable body 321, avoiding the elastic member 34 from shifting, thereby ensuring the reset accuracy of the sealing member 31.

[0039] Please see Figure 2 In some embodiments, the male mold assembly 10 includes a male mold component 11 and a support component 12. The male mold component 11 is appropriately matched with the female mold component 21. The sealing component 31 and the movable component 32 are both movably inserted through the male mold component 11 in the mold opening direction. The support component 12 is located on the side of the male mold component 11 away from the female mold component 21 and is connected to the male mold component 11. The support component 12 is configured to abut against the top plate component 33.

[0040] Thus, through the above configuration, the support member 12 can abut against the top plate member 33 when the top plate member 33 is reset, so as to limit and support the top plate member 33, which is conducive to the repeated operation of the top plate member 33 and thus improves the operation efficiency.

[0041] Please see Figure 2 In some embodiments, there are multiple elastic members 34 and multiple movable members 32, which are arranged in a one-to-one correspondence. The multiple movable members 32 are evenly arranged. One end of each movable member 32 is movably connected to the top plate member 33 and connected to the corresponding elastic member 34. The other end of each movable member 32 is connected to the sealing member 31.

[0042] Thus, through the above arrangement, multiple movable parts 32 and multiple elastic parts 34 can cooperate to support the sealing part 31 and drive the sealing part 31 to move closer to the infusion part 22, so that the sealing part 31 is subjected to uniform force, avoiding the sealing part 31 from tilting or swaying, thereby improving the sealing stability of the sealing part 31.

[0043] Please see Figure 2 In some embodiments, the sealing member 31 has a supporting surface 311 on the side near the mother mold member 21, and the supporting surface 311 is configured to abut against the pouring member 22. The supporting surface 311 is adapted to the pouring member 22, and the supporting surface 311 can be a plane or a curved surface.

[0044] Thus, through the above arrangement, the sealing component 31 can form a surface contact with the filling component 22 through the abutment surface 311, thereby improving the sealing effect of the sealing component 31, reducing the risk of leakage caused by local wear of the sealing component 31, and improving the service life of the sealing component 31.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A mold, characterized in that, include: Common mold components; The female mold assembly includes a female mold component, a pouring component, and an injection component. The female mold component is appropriately fitted to the male mold assembly. When the female mold component and the male mold assembly are closed, they form a molding cavity. The pouring component is embedded in the female mold component and communicates with the molding cavity. The pouring component is used to deliver molten liquid to the molding cavity. The injection component is movably inserted through the pouring component along the mold opening direction of the mold. The injection component is configured to inject the molten liquid into the molding cavity. and A sealing assembly includes a sealing member, a movable member, a top plate member, and an elastic member. The sealing member is movably inserted through the male mold assembly along the mold opening direction and is correspondingly arranged with the injection member along the mold opening direction. One end of the movable member is movably inserted through the male mold assembly along the mold opening direction and connected to the sealing member. The other end of the movable member is movably connected to the top plate member. The elastic member is connected to both the movable member and the top plate member. The elastic member is configured to push the movable member to move the sealing member closer to the injection member, so that the sealing member seals the injection member.

2. The mold as described in claim 1, characterized in that, The injection component is provided with a conveying groove and an injection groove. The conveying groove extends through the injection component along the mold opening direction. The conveying groove is configured to allow the injection component to pass through. The injection groove is located on the side wall of the injection component and communicates with the conveying groove. The injection groove is used to convey the molten liquid to the conveying groove.

3. The mold as described in claim 2, characterized in that, The injection component is movably inserted through the conveying groove along the mold opening direction and is interference-fitted with the groove wall.

4. The mold as described in claim 2, characterized in that, In the direction perpendicular to the mold opening direction, the cross-sectional area of ​​the sealing element is larger than the cross-sectional area of ​​the conveying groove.

5. The mold as described in claim 1, characterized in that, The top plate component includes: The top plate is located on the side of the male mold assembly opposite to the female mold component; A connecting body is disposed on the side of the top plate facing the mother mold and is detachably connected to the top plate. A receiving groove is formed between the connecting body and the top plate. The receiving groove is configured to receive the elastic member. The end of the movable member away from the sealing member is inserted into the receiving groove.

6. The mold as described in claim 5, characterized in that, The movable component includes: The movable body moves along the mold opening direction, passes through the male mold assembly, and is inserted into the top plate component; A limiting body is disposed in the receiving groove and connected to the movable body. The limiting body abuts against the elastic member and is configured to abut against the groove wall of the receiving groove near the sealing member.

7. The mold as described in claim 5, characterized in that, The storage slot includes a receiving slot, a through slot, and a placement slot. The receiving slot is located on the side of the connector facing the top plate. The through slot passes through the connector and communicates with the receiving slot. The placement slot is located on the side of the top plate facing the connector and communicates with the receiving slot. In the direction perpendicular to the direction of the through slot pointing to the receiving slot, the cross-sectional area of ​​the receiving slot is larger than the cross-sectional area of ​​the through slot and the cross-sectional area of ​​the placement slot.

8. The mold as described in claim 1, characterized in that, The common mold component includes: The male mold part is appropriately matched with the female mold part, and the sealing part and the movable part are both movably inserted through the male mold part along the mold opening direction; A support member is disposed on the side of the male mold member opposite to the female mold member and connected to the male mold member, and the support member is configured to abut against the top plate member.

9. The mold as described in claim 1, characterized in that, The number of elastic elements and movable elements are both multiple and are arranged in a one-to-one correspondence. The multiple movable elements are evenly arranged. One end of each movable element is movably connected to the top plate and connected to the corresponding elastic element, and the other end of each movable element is connected to the sealing element.

10. The mold as described in claim 1, characterized in that, The sealing member has a supporting surface on the side near the mother mold member, and the supporting surface is configured to abut against the infusion member.

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