A partial optimization extrusion device for die casting mold

Abstract

The utility model relates to die casting die technical field, and disclose a kind of die casting die local optimization extrusion device, including die casting die main part;The top of die casting die main part is provided with forming cavity, and the side of die casting die main part is equipped with oil cylinder, and the bottom of forming cavity inside is provided with two ejection grooves, and the side of forming cavity inside is provided with extrusion slot, and the side of oil cylinder close to die casting die main part is equipped with transmission rod, and the end of transmission rod is fixedly connected with fixed block, and the side of fixed block is fixedly connected with extrusion rod, and the side of extrusion rod close to fixed block is fixedly connected with mounting plate.The die casting die local optimization extrusion device, by the design that extrusion rod can be quickly replaced, when extrusion rod needs to be replaced when producing wear, the quick disassembly of extrusion rod can be realized by simple pressing and pulling out, the time consumed in the maintenance replacement process of extrusion rod is significantly reduced, and then effectively improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of die casting mold technology, and in particular to a locally optimized extrusion device for die casting molds. Background Technology

[0002] Die casting molds are the core process equipment in die casting production. They consist of moving molds, fixed molds, cavities, cores, gating systems, ejection mechanisms, and other parts. Local extrusion optimization devices are functional additional components of die casting molds. During die casting, thick-walled and corner parts of the die casting are prone to defects such as shrinkage cavities and porosity due to uneven solidification rates of the molten metal. Local extrusion devices compensate for the insufficient shrinkage capacity of the mold cavity by applying additional pressure to these weak areas, thereby improving the internal density of the die casting.

[0003] Existing die-casting mold local optimization extrusion devices typically use hydraulic cylinders to drive extrusion pins to extrude molten metal, thereby achieving localized densification. However, since key components such as extrusion pins and cores are in direct contact with the high-temperature molten metal and require repeated movement, they are prone to wear due to high temperatures. In such cases, workers need to replace them to ensure the accuracy and efficiency of extrusion. However, existing technologies generally use threads to fix the extrusion pins, which requires stopping the machine to wait for the threads to cool down or frequent operation during disassembly. The overall process is cumbersome and complex, which not only reduces work and maintenance efficiency but also extends equipment downtime. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the replacement process of the extrusion pin when it is worn is cumbersome in the existing technology, which will result in low work and maintenance efficiency. To this end, we propose a locally optimized extrusion device for die casting molds.

[0005] To achieve the above objectives, this application adopts the following technical solution: a locally optimized extrusion device for die casting molds, comprising a die casting mold body; a forming cavity is provided at the top of the die casting mold body, a hydraulic cylinder is installed on one side of the die casting mold body, two ejection grooves are provided at the bottom of the forming cavity, an extrusion groove is provided on one side of the forming cavity, a transmission rod is installed on the side of the hydraulic cylinder near the die casting mold body, a fixed block is fixedly connected to the end of the transmission rod, an extrusion rod is fixedly connected to one side of the fixed block, an installation plate is fixedly connected to the side of the extrusion rod near the fixed block, two slots are provided on the surface of the installation plate, two buckles that engage with the slots are slidably connected inside the fixed block, a sliding sleeve is fixedly connected to the top and bottom of the fixed block, sliding grooves are provided at both ends of the fixed block and inside the sliding sleeves, a sliding rod is slidably connected inside the sliding grooves, a push-pull plate is fixedly connected to the end of the sliding rod away from the sliding sleeve, a fixed plate is fixedly connected inside the fixed block, a spring spring is fixedly connected to the top and bottom of the fixed plate, and the end of the spring spring near the buckle is fixedly connected to the buckle.

[0006] Preferably, an energy storage spring is sleeved on the surface of the sliding rod, and the top and bottom ends of the energy storage spring are fixedly connected to the sliding sleeve and the push-pull plate, respectively.

[0007] Preferably, guide grooves are provided on both sides of the inside of the fixing block, and guide blocks are fixedly connected to both sides of the buckle. The inside of the guide groove is slidably connected to the guide block.

[0008] Preferably, the sliding sleeve has stop grooves on both sides, and the sliding rod has stop blocks fixedly connected to both sides, with the inside of the stop grooves slidably connected to the stop blocks.

[0009] Preferably, the end of the buckle is rounded, and two rubber contact plates are installed on one side of the mounting plate.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] In this invention, the extrusion rod is designed to be quick to replace. When the extrusion rod is worn and needs to be replaced, it can be quickly disassembled by simply pressing and pulling. This significantly reduces the time spent on the maintenance and replacement of the extrusion rod, thereby effectively improving work efficiency. Attached Figure Description

[0012] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0013] Figure 1 This is a schematic diagram of the main structure of the die-casting mold of this utility model;

[0014] Figure 2 This is a side view of the die-casting mold of this utility model.

[0015] Figure 3 This is a schematic diagram of the main body of the extrusion optimization component of this utility model;

[0016] Figure 4 This is a schematic diagram of the main structure of the extrusion rod of this utility model;

[0017] Figure 5 This is a cross-sectional view of the internal structure of the fixing block of this utility model.

[0018] Figure 6 This is a vertical cross-sectional view of the internal structure of the fixing block of this utility model.

[0019] Legend: 1. Die-casting mold body; 2. Molding cavity; 3. Hydraulic cylinder; 4. Ejection groove; 5. Extrusion groove; 6. Transmission rod; 7. Fixing block; 8. Extrusion rod; 9. Mounting plate; 10. Slot; 11. Buckle; 12. Sliding sleeve; 13. Sliding groove; 14. Sliding rod; 15. Push-pull plate; 16. Fixing plate; 17. Elastic spring; 18. Energy storage spring; 19. Guide groove; 20. Guide block; 21. Stop groove; 22. Stop block; 23. Rounded corner; 24. Rubber contact plate. Detailed Implementation

[0020] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following specific embodiments and accompanying drawings are only exemplary descriptions of the technical solution of this utility model, and should not be regarded as the whole of this utility model or as a limitation or restriction on the technical solution of this utility model.

[0021] Reference Figures 1-6 As shown, this utility model provides a technical solution: a locally optimized extrusion device for a die-casting mold, including a die-casting mold body 1; a forming cavity 2 is provided at the top of the die-casting mold body 1, a hydraulic cylinder 3 is installed on one side of the die-casting mold body 1, two ejection grooves 4 are provided at the bottom of the forming cavity 2, an extrusion groove 5 is provided on one side of the forming cavity 2, a transmission rod 6 is installed on the side of the hydraulic cylinder 3 near the die-casting mold body 1, a fixing block 7 is fixedly connected to the end of the transmission rod 6, an extrusion rod 8 is fixedly connected to one side of the fixing block 7, an installation plate 9 is fixedly connected to the side of the extrusion rod 8 near the fixing block 7, two slots 10 are provided on the surface of the installation plate 9, two buckles 11 that engage with the slots 10 are slidably connected inside the fixing block 7, and the top and bottom of the fixing block 7 are both fixedly connected A sliding sleeve 12 is attached. Sliding grooves 13 are provided at both ends of the fixed block 7 and inside the sliding sleeve 12. A sliding rod 14 is slidably connected inside the sliding groove 13. A push-pull plate 15 is fixedly connected to the end of the sliding rod 14 away from the sliding sleeve 12. A fixed plate 16 is fixedly connected inside the fixed block 7. A spring spring 17 is fixedly connected to the top and bottom ends of the fixed plate 16. The end of the spring spring 17 near the buckle 11 is fixedly connected to the buckle 11. An energy storage spring 18 is sleeved on the surface of the sliding rod 14. The top and bottom ends of the energy storage spring 18 are fixedly connected to the sliding sleeve 12 and the push-pull plate 15, respectively. Guide grooves 19 are provided on both sides inside the fixed block 7. Guide blocks 20 are fixedly connected to both sides of the buckle 11. The inside of the guide groove 19 is slidably connected to the guide block 20.

[0022] Specifically: When the staff needs to disassemble and replace the extrusion rod 8, they can select extrusion rods 8 with different diameters and lengths to replace them according to the actual die-casting process requirements. During operation, simply press the push-pull plate 15 inward to move the sliding rod 14 against the buckle 11, thus disengaging the buckle 11 from the slot 10. The buckle 11, with its pre-reserved multi-specification adaptability gap, can accommodate extrusion rods 8 with diameter differences within ±2mm. The depth design of the slot 10 can meet the positioning requirements of extrusion rods 8 of different lengths. After disengaging, release the push-pull plate 15. The energy storage spring 18 will then release its force, causing the sliding rod 14 to spring back to its initial pressed position, resetting the sliding rod 14 after pressing. Then, pull the original extrusion rod 8 to one side to remove it. When replacing it, select a new extrusion rod 8 of the corresponding specification, ensuring its rod diameter matches the guide tolerance of the mounting hole, and its length matches the depth of the forming cavity 2 (ensuring accurate extrusion stroke). Align the slot 10 on the new extrusion rod 8 with the buckle 11 and snap it in. During the snap-fit ​​process, although the positions of the slots 10 of different lengths of the extrusion rods 8 vary, the elastic extension range of the buckle 11 can cover the positioning requirements of common specifications. After snap-fitting, the elastic force stored in the spring 17 is released, allowing the buckle 11 to be stably engaged in the slot 10. The movement trajectory of the buckle 11 will be stably guided by the guide groove 19 and the guide block 20. Even if extrusion rods 8 of different diameters are replaced, it can be ensured that the engagement trajectory of the buckle 11 and the slot 10 will not deviate, thus achieving stable installation after replacing extrusion rods 8 of different specifications. Through the design that allows for quick replacement of the extrusion rods 8, when the extrusion rods 8 are worn and need to be replaced, the extrusion rods 8 can be quickly disassembled by simply pressing and pulling out, which significantly reduces the time spent on the maintenance and replacement process of the extrusion rods 8, thereby effectively improving work efficiency.

[0023] Reference Figure 5 As shown in this embodiment: both sides of the sliding sleeve 12 are provided with stop grooves 21, and both sides of the sliding rod 14 are fixedly connected with stop blocks 22, and the inside of the stop groove 21 is slidably connected to the stop block 22.

[0024] Specifically: By setting the stop groove 21 and the stop block 22, the sliding rod 14 can form a stable limiting effect when sliding inside the sliding sleeve 12, so that the sliding sleeve 12 will not move excessively during the movement, thereby effectively improving the stability of the slot 10 and the buckle 11 during the disengagement process.

[0025] Reference Figure 4 and Figure 5 As shown in this embodiment: the end of the buckle 11 is provided with a rounded corner 23, and two rubber contact plates 24 are installed on one side of the mounting plate 9;

[0026] Specifically, by setting the rounded corner 23 and the rubber contact plate 24, the slot 10 and the buckle 11 can be engaged more quickly, and after engagement, it is less likely to shake or shift due to the drive of the oil cylinder 3 and the transmission rod 6, thereby significantly improving the stability and extrusion effect of the extrusion rod 8 during movement.

[0027] Working principle: When the operator needs to disassemble and replace the extrusion rod 8, an extrusion rod 8 with different diameters and lengths can be selected according to the actual die-casting process requirements. During operation, simply press the push-pull plate 15 inward to drive the sliding rod 14 to abut the buckle 11, causing the buckle 11 to disengage from the slot 10. The slot 10, with its pre-reserved multi-specification adaptation gap, can accommodate extrusion rods 8 with diameter differences within ±2mm. The depth design of the slot 10 can meet the positioning requirements of extrusion rods 8 of different lengths. After disengaging, release the push-pull plate 15. The energy storage spring 18 will then release its elasticity, causing the sliding rod 14 to spring back to its initial pressed position, resetting the sliding rod 14 after pressing. Then, pull the original extrusion rod 8 to one side to remove it. When replacing, select a new extrusion rod 8 of the corresponding specification, ensuring that its rod diameter matches the guide tolerance of the mounting hole, and that the rod body... The length needs to be adapted to the depth of the forming cavity 2 (to ensure accurate extrusion stroke). Align the slot 10 on the new extrusion rod 8 with the buckle 11 and snap it in. During the snapping process, although the position of the slot 10 of extrusion rods 8 of different lengths is different, the elastic extension range of the buckle 11 can cover the positioning requirements of common specifications. After snapping, the elastic force stored in the elastic spring 17 is released to make the buckle 11 stably snap into the slot 10. The movement trajectory of the buckle 11 will be stably guided by the guide groove 19 and the guide block 20. Even if extrusion rods 8 of different diameters are replaced, it can be ensured that the snapping trajectory of the buckle 11 and the slot 10 will not be deviated, thereby achieving stable installation after replacing extrusion rods 8 of different specifications.

[0028] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A locally optimized extrusion device for die casting molds, comprising a die casting mold body (1); characterized in that, The die-casting mold body (1) has a molding cavity (2) at its top. A hydraulic cylinder (3) is installed on one side of the die-casting mold body (1). Two ejection grooves (4) are opened at the bottom of the molding cavity (2). An extrusion groove (5) is opened on one side of the molding cavity (2). A transmission rod (6) is installed on the side of the hydraulic cylinder (3) near the die-casting mold body (1). A fixing block (7) is fixedly connected to the end of the transmission rod (6). An extrusion rod (8) is fixedly connected to one side of the fixing block (7). An installation plate (9) is fixedly connected to the side of the extrusion rod (8) near the fixing block (7). Two slots (10) are opened on the surface of the installation plate (9). The fixing block (7) has... The internal sliding connection has two buckles (11) that engage with the slot (10). The top and bottom of the fixing block (7) are fixedly connected to a sliding sleeve (12). The two ends of the fixing block (7) and the interior of the sliding sleeve (12) are provided with sliding grooves (13). The interior of the sliding groove (13) is slidably connected to a sliding rod (14). The end of the sliding rod (14) away from the sliding sleeve (12) is fixedly connected to a push-pull plate (15). The interior of the fixing block (7) is fixedly connected to a fixing plate (16). The top and bottom of the fixing plate (16) are fixedly connected to a spring spring (17). The end of the spring spring (17) near the buckle (11) is fixedly connected to the buckle (11).

2. The locally optimized extrusion device for die casting molds according to claim 1, characterized in that: The surface of the sliding rod (14) is fitted with an energy storage spring (18), and the top and bottom ends of the energy storage spring (18) are fixedly connected to the sliding sleeve (12) and the push-pull plate (15) respectively.

3. The locally optimized extrusion device for die casting molds according to claim 1, characterized in that: The fixed block (7) has guide grooves (19) on both sides inside, and the buckle (11) has guide blocks (20) fixedly connected to both sides. The inside of the guide groove (19) is slidably connected to the guide block (20).

4. The locally optimized extrusion device for die casting molds according to claim 1, characterized in that: The sliding sleeve (12) has stop grooves (21) on both sides inside, and the sliding rod (14) has stop blocks (22) fixedly connected to both sides. The inside of the stop groove (21) is slidably connected to the stop block (22).

5. The locally optimized extrusion device for die casting molds according to claim 1, characterized in that: The buckle (11) has a rounded corner (23) at its end, and two rubber contact plates (24) are installed on one side of the mounting plate (9).

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