Die-casting aluminum alloy die with push plate structure

Abstract

The application relates to a die-casting aluminum alloy die with a push plate structure, which comprises a lower die and a forming block arranged on the lower die; further comprises an ejection push plate mechanism, the ejection push plate mechanism comprises a push block and a limiting reset mechanism, the push block is arranged on the lower die through the limiting reset mechanism, and the push block can be displaced relative to the lower die; and a first through hole for the forming block to pass through is arranged on the push block. The application has the effect of improving product quality.

Description

Technical Field

[0001] This application relates to the technical field of molds, and in particular to a die-casting aluminum alloy mold with a push plate structure. Background Technology

[0002] Molds are various molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping.

[0003] Currently, a stamping machine includes a frame, a lower die fixed on the frame, a forming block fixedly connected to the lower die, and an ejector pin slidably connected to the forming block; a hydraulic cylinder connected to the ejector pin is connected to the lower die; and a pneumatic cylinder is fixed on the frame, with an upper die connected to the pneumatic cylinder. First, the workpiece to be die-cast is placed on the forming block. Then, the pneumatic cylinder is activated, and its piston rod moves the upper die closer to the lower die, causing the upper die to press against the lower die, thus die-casting the workpiece. After die-casting is complete, the upper die moves away from the lower die, and the die-cast workpiece adheres tightly to the forming block. Then, the hydraulic cylinder is activated again, driving the ejector pin to move, which in turn pushes the workpiece against the forming block, making it easy for the operator to remove the die-cast workpiece.

[0004] However, when the ejector pin pushes the workpiece away from the forming block, it leaves marks on the surface of the workpiece, thereby reducing product quality. Summary of the Invention

[0005] To improve product quality, this application provides a die-casting aluminum alloy mold with a push plate structure.

[0006] This application provides a die-casting aluminum alloy mold with a push plate structure, which adopts the following technical solution:

[0007] A die-casting aluminum alloy mold with a push plate structure includes a lower mold and a forming block, the forming block being disposed on the lower mold; it also includes an ejector push plate mechanism, the ejector push plate mechanism including a push block and a limiting reset mechanism, the push block being disposed on the lower mold through the limiting reset mechanism, and the push block being able to move relative to the lower mold; and the push block having a first through hole for the forming block to pass through.

[0008] By adopting the above technical solution, the workpiece to be die-cast is placed on the forming block, and then the upper die of the stamping press die-casts the workpiece located on the forming block. When the upper die is die-casting the workpiece, it applies force to the push block, causing the push block to abut against the lower die. When the push block abuts against the lower die, the upper die completes the die-casting of the workpiece located on the forming block. After stamping, the workpiece will be pressed against the forming block. Then, when the upper die moves away from the workpiece, the limiting reset mechanism will drive the push block to move away from the lower die. The push block will push the workpiece die-cast on the forming block to move, so that the workpiece is no longer pressed against the forming block, making it easier for the operator to pick it up. Therefore, the bottom die can facilitate the operator to pick up the workpiece while reducing the marks left on the product and improving product quality.

[0009] Optionally, the limiting reset mechanism includes a limiting component and an elastic reset component. The limiting component includes a guide post, a first connecting screw, and a limiting block. The lower die has a guide hole, and the guide post is slidably disposed within the guide hole. The push block has a first threaded hole, and the first connecting screw is disposed at one end of the guide post and threadedly connected to the first threaded hole. The lower die has a limiting groove communicating with the guide post, and the limiting block is disposed at the other end of the guide post and slidably disposed within the limiting groove. The elastic reset component is disposed on the push block and connected to the lower die.

[0010] By adopting the above technical solution, the first connecting screw is first threaded through the limiting hole and the guide hole and connected to the first threaded hole to realize the connection between the lower mold and the push block; when the upper mold performs die casting on the workpiece and the push block abuts against the lower mold, the end of the guide post near the limiting block is located in the limiting groove; when the upper mold no longer abuts against the push block, the elastic reset component will drive the push block to move away from the lower mold, the guide post will slide in the guide hole, and the limiting block will abut against the side wall of the limiting groove; therefore, the limiting block can control the relative displacement of the push block.

[0011] Optionally, the elastic reset assembly includes a connecting post, a second connecting screw, a limiting block, and a disc spring. The second connecting screw is disposed on the connecting post, and the push block has a second threaded hole that is threadedly connected to the second connecting screw. The limiting block is disposed on the connecting post, and the disc spring is sleeved on the connecting post. The disc spring is limited to the connecting post by the push block and the limiting block. The lower mold has a first placement groove for placing the disc spring, and the bottom wall of the first placement groove has a second placement groove for placing the limiting block. When the push block abuts against the lower mold, the limiting block is located in the second placement groove, one end of the disc spring abuts against the bottom wall of the first placement groove, and the other end abuts against the push block.

[0012] By adopting the above technical solution, the connecting post with the disc spring is first connected to the push block via the second connecting screw. Then, the limiting block and the end of the disc spring near the limiting block are placed in the first placement groove. When the push block moves towards the lower mold, the disc spring is compressed, with one end of the disc spring pressing against the push block and the other end pressing against the bottom wall of the first placement groove. The limiting block is located in the second placement groove. When the upper mold moves away from the push block, the disc spring recovers its elastic deformation. Under the action of the disc spring's elastic force, the push block moves away from the lower mold and abuts against the product being die-cast on the forming block, so that the workpiece pressed against the forming block no longer presses against the forming block. Furthermore, due to the design of the limiting block, the end of the disc spring near the limiting block will always remain in the first placement groove. The connecting post connected to the push block via the second connecting screw is also easy to disassemble, thus facilitating the replacement of the disc spring.

[0013] Optionally, an auxiliary installation mechanism is also included, comprising an installation block, a connecting block, and a guide block. The installation block has a fourth through hole for the forming block to pass through. Multiple connecting blocks are provided, and all of the multiple connecting blocks are disposed on the installation block. The multiple connecting blocks and the installation block form an installation interval, and the fourth through hole is located within the installation interval. The push block and the side wall of the lower mold both abut against the connecting block. The push block is located between the installation block and the lower mold, and the end of the forming block away from the lower mold passes through the first through hole and the fourth through hole in sequence. The guide block is inclinedly disposed on the connecting block, and the guide block is inclined in a direction away from the installation interval.

[0014] By adopting the above technical solution, the push block is first placed in the installation area, with the side of the push block away from the first threaded hole abutting against the installation block. Then, the disc spring is sleeved on the connecting column, and the second connecting screw is threadedly connected to the second threaded hole on the push block. Next, the lower mold is placed in the installation area, with the end of the forming block away from the lower mold passing through the first through hole and located in the fourth through hole. The limiting block on the push block and the end of the disc spring near the limiting block extend into the first placement groove of the lower mold. Finally, the first connecting screw passes through the limiting groove and the guide hole and is threadedly connected to the first connecting threaded hole. The auxiliary installation mechanism allows the operator to easily adjust the timing of the lower mold or push block, enabling the lower mold and push block to be quickly connected together, saving time and improving efficiency.

[0015] Optionally, the connecting block is provided with a limiting mechanism, which includes an adjusting block, a limiting rod, a moving component, and an adjusting component. The connecting block has a sliding hole, and the adjusting block is slidably disposed in the sliding hole. The moving component is disposed on the connecting block and connected to the adjusting block. The adjusting block has a third placement groove, and the limiting rod is rotatably disposed in the third placement groove through the adjusting component. The limiting rod can abut against the side of the lower mold away from the mounting block.

[0016] By adopting the above technical solution, after the molding block passes through the first through hole and is located in the fourth through hole, the adjustment component is activated first. The adjustment component drives the limiting rod to rotate so that the limiting rod is perpendicular to the adjustment block. Then the moving component is activated. The moving component drives the adjustment block to move in the sliding hole toward the direction of the mounting block, so that the limiting rod on the adjustment block abuts against the side of the lower mold away from the push block, and the lower mold abuts against the push block, so that the first connecting screw is better threadedly connected to the first threaded hole.

[0017] Optionally, the mounting block is provided with an ejection mechanism, which includes an ejection block and a cylinder. The cylinder is mounted on the mounting block, and the ejection block is mounted on the piston rod of the cylinder. The mounting block has a groove for placing the ejection block.

[0018] By adopting the above technical solution, after the lower mold and the push block are connected together, the cylinder is started. The piston rod of the cylinder drives the ejector block to move, and the ejector block will push the push block to move, so that the push block no longer resists the mounting block, thus making it easier for the operator to transfer the push block and the lower mold connected together out of the mounting block.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. The bottom mold design allows operators to easily handle workpieces while reducing marks left on the product and improving product quality;

[0021] 2. The designed separation mechanism can also separate the workpiece from the forming block and ensure the quality of the workpiece. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the die-casting bottom mold in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the structure of the defined components in the embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the elastic reset component in an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the auxiliary installation mechanism in the embodiments of this application;

[0026] Figure 5 This is a schematic diagram of the structure of the lower mold located in the installation space in an embodiment of this application;

[0027] Figure 6 This is a schematic diagram of the structure of the defined mechanism in the embodiments of this application;

[0028] Figure 7 This is a schematic diagram of the ejection mechanism in an embodiment of this application.

[0029] Reference numerals: 1. Lower mold; 11. Guide hole; 12. Limiting groove; 13. First placement groove; 14. Second placement groove; 2. Molding block; 21. Cavity; 22. Second through hole; 3. Push block; 31. First through hole; 32. First threaded hole; 33. Second threaded hole; 4. Limiting reset mechanism; 41. Limiting component; 411. Guide post; 412. First connecting screw; 413. Limiting block; 42. Elastic reset component; 421. Connecting post; 422. Second connecting screw 423. Rod; 424. Limiting block; 7. Disc spring; 8. Auxiliary mounting mechanism; 71. Mounting block; 711. Fourth through hole; 72. Connecting block; 721. Sliding hole; 73. Guide block; 8. Limiting mechanism; 81. Adjusting block; 811. Third placement slot; 82. Limiting rod; 83. Moving assembly; 831. Moving screw; 832. Second motor; 84. Adjusting assembly; 841. Third motor; 842. Adjusting shaft; 9. Ejection mechanism; 91. Ejection block; 92. Cylinder. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0031] This application discloses a die-casting aluminum alloy mold with a push plate structure.

[0032] refer to Figure 1 A die-casting aluminum alloy mold with a push plate structure includes a lower mold 1, on which a forming block 2 is fixedly connected by bolts; and an ejector push plate mechanism is provided on the lower mold 1.

[0033] refer to Figure 2 and Figure 3 The ejector mechanism includes a push block 3 disposed on the lower mold 1, and the push block 3 has a first through hole 31 for the forming block 2 to pass through; the lower mold 1 is provided with a limiting reset mechanism 4 connected to the push block 3.

[0034] The lower mold 1 has a first placement groove 13 at one end near the push block 3, and a second placement groove 14 is provided on the bottom wall of the first placement groove 13; the push block 3 has a second threaded hole 33 on one side near the lower mold 1.

[0035] The limiting reset mechanism 4 includes an elastic reset component 42, which includes a connecting post 421 located in the first placement groove 13. One end of the connecting post 421 is integrally provided with a second connecting screw 422 that is threadedly connected to the second threaded hole 33. The end of the connecting post 421 away from the second connecting screw 422 is integrally provided with a limiting block 423, which can slide from the first placement groove 13 into the second placement groove 14. A disc spring 424 is sleeved on the guide post 411. The disc spring 424 is limited to the connecting post 421 by the push block 3 and the limiting block 423. One end of the disc spring 424 abuts against the push block 3 and the other end abuts against the bottom wall of the first placement groove 13.

[0036] When the disc spring 424 is in its normal state, the push block 3 does not contact the lower mold 1, and the limiting block 423 is located in the first placement groove 13. When the push block 3 contacts the lower mold 1, the disc spring 424 is compressed, one end of the disc spring 424 contacts the push block 3 and the other end contacts the bottom wall of the first placement groove 13, and the limiting block 423 also moves from the first placement groove 13 to the second placement groove 14; the force of the disc spring 424 restoring its elastic deformation can make the push block 3 move away from the lower mold 1.

[0037] refer to Figure 2 The lower die 1 has a guide hole 11 on the side near the push block 3, and a limiting groove 12 communicating with the guide hole 11 is provided on the side of the lower die 1 away from the push block 3, and the cross-section of the limiting groove 12 is larger than the cross-section of the guide hole 11; the push block 3 has a first threaded hole 32 on the side near the lower die 1.

[0038] The lower mold 1 is provided with a limiting component 41, which includes a guide post 411 that is slidably connected in the guide hole 11. The end of the guide post 411 near the push block 3 is integrally provided with a first connecting screw 412 that is threadedly connected to the first threaded hole 32. The end of the guide post 411 away from the first connecting screw 412 is integrally provided with a limiting block 413. The limiting block 413 is slidably provided in the limiting groove 12. The cross-section of the limiting block 413 is larger than the cross-section of the guide hole 11. The end of the limiting block 413 away from the guide post 411 is provided with an internal hexagonal groove.

[0039] The first connecting screw 412 passes through the limiting groove 12 and guide hole 11 on the lower mold 1 in sequence, and then is threadedly connected to the first threaded hole 32 on the push block 3; when the push block 3 does not abut against the lower mold 1 under the action of the disc spring 424, the limiting block 413 abuts against the bottom wall of the limiting groove 12; when the push block 3 abuts against the lower mold 1, the end of the guide post 411 away from the first connecting screw 412 is located in the placement groove, and the limiting block 413 no longer abuts against the bottom wall of the limiting groove 12.

[0040] refer to Figure 4 and Figure 5To facilitate the connection between the push block 3 and the lower mold 1, an auxiliary installation mechanism 7 is also included. The auxiliary installation mechanism 7 includes an installation block 71, on which four connecting blocks 72 are fixedly connected, and the four connecting blocks 72 form an installation area on the installation block 71. A fourth through hole 711 is opened on the installation block 71 within the installation area. A guide block 73 is fixedly connected to the end of the connecting block 72 away from the installation block 71. The guide block 73 is tilted toward the side away from the installation area, and the four guide blocks 73 form a guide area.

[0041] First, push block 3 is placed into the installation area through the guide area. The side of push block 3 away from the first threaded hole 32 abuts against the mounting block 71. All four first connecting blocks 72 abut against the side wall of push block 3, and the first through hole 31 on push block 3 is connected to the fourth through hole 711 on mounting block 71. Then, disc spring 424 is sleeved on connecting post 421, and then the second connecting screw 422 is threadedly connected to the second threaded hole 33 on push block 3.

[0042] Then the lower mold 1 is placed into the installation area through the guide area. The end of the molding block 2 away from the lower mold 1 passes through the first through hole 31 on the push block 3 and is located in the fourth through hole 711 of the installation block 71. The end of the limiting block 423 and the disc spring 424 on the push block 3 near the limiting block 423 extends into the first placement groove 13 of the lower mold 1.

[0043] Finally, the first connecting screw 412 passes through the limiting groove 12 and guide hole 11 on the lower mold 1 and enters the first threaded hole 32 of the push block 3, and is threadedly connected to the first threaded hole 32.

[0044] refer to Figure 5 and Figure 6 To facilitate the threaded connection between the first connecting screw 412 and the first threaded hole 32, a limiting mechanism 8 is provided on the connecting block 72. The connecting block 72 has a sliding hole 721 in its vertical direction. The limiting mechanism 8 includes an adjusting block 81 that is slidably connected in the sliding hole 721. A moving component 83 is provided on the connecting block 72. The moving component 83 includes a moving screw 831 that is rotatably connected in the sliding hole 721. The moving screw 831 passes through the adjusting block 81 and is threadedly connected to the adjusting block 81. A second motor 832 is fixedly connected to the connecting block 72. The output shaft of the second motor 832 is connected to one end of the moving screw 831.

[0045] The adjusting block 81 has a third placement slot 811 and an adjusting component 84. The adjusting component 84 includes a third motor 841 fixedly connected to the adjusting block 81. An adjusting shaft 842 is connected to the output shaft of the third motor 841. The adjusting shaft 842 is perpendicular to the moving screw 831. A limiting rod 82 is fixedly connected to the adjusting shaft 842. The limiting rod 82 can be located in the third placement slot 811.

[0046] When the molding block 2 is located in the fourth through hole 711, the third motor 841 is started first. The output shaft of the third motor 841 drives the adjusting shaft 842 to rotate. The adjusting shaft 842 drives the limiting rod 82 to rotate, so that the end of the limiting rod 82 away from the adjusting shaft 842 rotates out of the third placement groove 811 and makes the limiting rod 82 perpendicular to the adjusting block 81. Then the second motor 832 is started. The output shaft of the second motor 832 drives the moving screw 831 to rotate. The moving screw 831 drives the adjusting block 81 to move in the sliding hole 721 towards the mounting block 71, so that the end of the limiting rod 82 away from the adjusting shaft 842 abuts against the lower mold 1. The limiting rod 82 will drive the lower mold 1 to move, so that the lower mold 1 abuts against the push block 3.

[0047] refer to Figure 4 and Figure 7 In order to facilitate the removal of the connected push block 3 and lower mold 1 from the installation area, multiple ejection mechanisms 9 are provided on the installation block 71. The installation block 71 has a groove. The ejection mechanism 9 includes a cylinder 92 fixedly connected to the bottom wall of the groove. The piston rod of the cylinder 92 is connected to the ejection block 91. The ejection block 91 is located in the groove.

[0048] Start cylinder 92. The piston rod of cylinder 92 drives the ejector block 91 to move. The ejector block 91 will move in the groove towards the push block 3. Then the ejector block 91 will contact the push block 3 and drive the push block 3 to move away from the mounting block 71, transferring the push block 3 from the mounting area to the guide area. Finally, the operator can take the push block 3 and the lower mold 1, which are connected together, out of the guide area.

[0049] The implementation principle of a die-casting aluminum alloy mold with a push plate structure in this application embodiment is as follows: the lower mold 1 with push block 3 connected to it is installed on the stamping machine.

[0050] Then, the workpiece to be die-cast is placed on the forming block 2, and the upper die of the stamping machine die-casts the workpiece; when the upper die presses the workpiece, the upper die will abut against the push block 3 and drive the push block 3 to move towards the lower die 1, and make the push block 3 press against the lower die 1; at this time, the disc spring 424 is in a compressed state; the upper die and the forming block 2 will die-cast the workpiece, and the die-cast workpiece will press against the forming block 2.

[0051] After the workpiece is die-cast, the upper mold moves away from the push block 3, the disc spring 424 recovers its elastic deformation, and under the action of the elastic force of the disc spring 424, the push block 3 will move away from the lower mold 1. The push block 3 will then apply force to the workpiece that is pressed against the forming block 2, so that the die-cast workpiece no longer presses against the forming block 2.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A die-casting aluminum alloy mold having a push plate structure, comprising a lower mold (1) and a forming block (2) provided on the lower mold (1); characterized in that, It also includes an ejector plate mechanism, which includes a push block (3) and a limiting reset mechanism (4). The push block (3) is disposed on the lower mold (1) through the limiting reset mechanism (4), and the push block (3) can be displaced relative to the lower mold (1). The push block (3) has a first through hole (31) for the forming block (2) to pass through. The defined reset mechanism (4) includes a defined component (41) and an elastic reset component (42). The limiting component (41) includes a guide post (411), a first connecting screw (412) and a limiting block (413). The lower mold (1) has a guide hole (11) and the guide post (411) is slidably disposed in the guide hole (11). The push block (3) has a first threaded hole (32), the first connecting screw (412) is disposed at one end of the guide post (411), and the first connecting screw (412) is threadedly connected to the first threaded hole (32); The lower mold (1) is provided with a limiting groove (12) communicating with the guide post (411), and the limiting block (413) is provided at the other end of the guide post (411), and the limiting block (413) is slidably disposed in the limiting groove (12). The elastic reset component (42) is disposed on the push block (3) and connected to the lower mold (1); It also includes an auxiliary installation mechanism (7), which includes an installation block (71), a connecting block (72), and a guide block (73). The mounting block (71) has a fourth through hole (711) through which the molding block (2) passes. Four connecting blocks (72) are provided, and all four connecting blocks (72) are provided on the mounting block (71). The four connecting blocks (72) and the mounting block (71) form an installation interval, and the fourth through hole (711) is located within the installation interval. The four peripheral sidewalls of the push block (3) abut against the four connecting blocks (72) respectively, and the four peripheral sidewalls of the lower mold (1) abut against the four connecting blocks (72) respectively. The push block (3) is located between the mounting block (71) and the lower mold (1), and the end of the forming block (2) away from the lower mold (1) passes through the first through hole (31) and the fourth through hole (711) in sequence. The guide block (73) is inclined on the connecting block (72), and the guide block (73) is inclined in a direction away from the installation area; The connecting block (72) is provided with a limiting mechanism (8), which includes an adjusting block (81), a limiting rod (82), a moving component (83), and an adjusting component (84). The connecting block (72) has a sliding hole (721), the adjusting block (81) is slidably disposed in the sliding hole (721), and the moving component (83) is disposed on the connecting block (72) and connected to the adjusting block (81); The adjustment block (81) is provided with a third placement groove (811), and the limiting rod (82) is rotatably disposed in the third placement groove (811) through the adjustment component (84), and the limiting rod (82) can abut against the side of the lower mold (1) away from the mounting block (71).

2. The die-casting aluminum alloy mold with a push plate structure according to claim 1, characterized in that, The elastic reset assembly (42) includes a connecting post (421), a second connecting screw (422), a limiting block (423), and a disc spring (424). The second connecting screw (422) is disposed on the connecting post (421), and the push block (3) is provided with a second threaded hole (33) that is threadedly connected to the second connecting screw (422). The limiting block (423) is disposed on the connecting post (421). The disc spring (424) is sleeved on the connecting post (421), and the disc spring (424) is restricted on the connecting post (421) by the push block (3) and the limiting block (423); The lower mold (1) has a first placement groove (13) for placing the disc spring (424), and the bottom wall of the first placement groove (13) has a second placement groove (14) for placing the limiting block (423). When the push block (3) abuts against the lower mold (1), the limiting block (423) is located in the second placement groove (14), one end of the disc spring (424) abuts against the bottom wall of the first placement groove (13) and the other end abuts against the push block (3).

3. The die casting aluminum alloy mold having a push plate structure according to claim 1, characterized by, The mounting block (71) is provided with an ejection mechanism (9), which includes an ejection block (91) and a cylinder (92). The cylinder (92) is mounted on the mounting block (71), and the ejection block (91) is mounted on the piston rod of the cylinder (92). The mounting block (71) has a groove for placing the ejector block (91).

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