Continuous die-casting device for aluminum alloy castings

Abstract

The utility model discloses an aluminum alloy casting continuous die-casting device which comprises a base, the top end of the base is fixedly connected with a supporting frame, the inner side of the supporting frame is connected with an annular workbench in a sliding mode, the annular workbench is provided with a plurality of through grooves and sliding grooves, and the through grooves and the sliding grooves are arranged from top to bottom in an annular array mode. An annular groove is formed between the sliding groove and the through groove, a feeding groove is formed in the outer wall of the side, close to the annular groove, of the supporting frame, front-back axial limiting grooves are formed in the two side walls of the annular workbench correspondingly, and front-back axial grooves are formed in the inner walls of the two sides, close to the limiting grooves, of the annular workbench correspondingly. The design of the annular workbench is adopted, the annular layout of the annular workbench can reduce the space-time cost of die station conversion so as to improve the production efficiency, the movement stability and accuracy of the workbench are ensured through a limiting structure and gear transmission so as to improve the die-casting precision, and each die-casting die is provided with a specific structure to accurately adjust the height so as to improve the quality of die-casting products.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy die-casting, in particular to a continuous die-casting device for aluminum alloy castings. Background Art

[0002] In the die-casting production of aluminum alloy castings, traditional die-casting equipment often has some limitations. Traditional die-casting equipment mostly uses a single-station or linear layout for mold installation and operation. This layout makes the production process less compact and has low production efficiency.

[0003] For example, in each die-casting cycle, operations such as mold movement, material addition, die-casting, and demoulding often require switching between different equipment or workstations, involving a lot of manual operations or complex automated transmission systems, which not only increases production time but is also prone to human errors.

[0004] In addition, traditional die-casting devices are not convenient enough for adjusting and maintaining molds. During use, die-casting molds often need to be highly adjusted according to different product requirements to achieve precise closing, opening, or matching with other components.

[0005] To this end, we propose a continuous die-casting device for aluminum alloy castings. Utility Model Content

[0006] The main purpose of the present utility model is to provide a continuous die-casting device for aluminum alloy castings, in order to prevent the limitations of traditional die-casting devices such as non-compact process, low efficiency, and inconvenient mold adjustment and maintenance caused by the layout, thereby improving production efficiency, product quality and equipment maintainability, and effectively solving the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A continuous die-casting device for aluminum alloy castings, comprising a base, the top of the base is fixedly connected to a support frame, the inner side of the support frame is slidably connected to an annular workbench, the annular workbench is provided with a plurality of through grooves and slide grooves arranged in an annular array from top to bottom, an annular groove is provided between the slide groove and the through groove, the outer wall of the support frame on one side close to the annular groove is provided with a feeding groove, both side walls of the annular workbench are provided with front and rear axial limit grooves, the inner walls of the annular workbench on both sides close to the limit groove are respectively provided with front and rear axial grooves, two limiting balls which can be inserted into the limiting grooves are respectively provided in two of the grooves, and the two limiting balls are connected to the annular workbench via front and rear axial compression springs on opposite sides;

[0009] A die-casting mold is provided in the slide groove, and a top plate is provided at the bottom end of the die-casting mold. A first mounting groove is opened inside the annular workbench, and the first mounting groove corresponds to the position and number of the slide groove one by one. A first drive motor is fixedly installed inside the first mounting groove, and the top output shaft of the first drive motor is fixedly connected to a threaded rod, and the external thread of the threaded rod is connected to a sleeve, and the top end of the sleeve extends into the interior of the slide groove and is rotatably connected to the middle part of the bottom end of the top plate through a bearing.

[0010] By adopting the above technical solution, the annular workbench is positioned by the limiting grooves on the two side walls and the limiting balls and compression springs in the grooves on the inner wall. The limiting balls are inserted into the limiting grooves under the action of the compression springs, which can ensure that the annular workbench slides stably inside the support frame and can slide relatively under a certain external force. The annular workbench can perform circular motion inside the support frame, which is convenient for operations at different workstations.

[0011] When the height of the die-casting mold needs to be adjusted, the first drive motor in the first mounting groove is started, and the output shaft of the first drive motor drives the threaded rod to rotate. Since the sleeve is threadedly connected to the threaded rod, when the threaded rod rotates, the sleeve will move up and down along the threaded rod, and the top end of the sleeve is rotatably connected to the top plate at the bottom of the die-casting mold through a bearing. Therefore, the up and down movement of the sleeve will drive the die-casting mold to move up and down, thereby realizing the adjustment of the height of the die-casting mold to meet different die-casting process requirements and the height requirements during operations such as mold closing, mold opening, or adjusting the relative position of the mold and other components; when the die-casting mold needs to be taken out, the threaded rod is driven to rotate by the first drive motor, so that the sleeve drives the die-casting mold to rise. After the die-casting mold is lifted to a sufficient height, the die-casting mold can be more conveniently taken out from the slide of the annular workbench. This design avoids the problem of difficulty in operating the mold removal at a fixed height, especially when space is limited or there is interference with surrounding equipment. The mold lifting function provides great convenience for mold maintenance and management;

[0012] A feeding groove is provided on the outer wall of the support frame close to the annular groove. Since the annular workbench is provided with a through groove, a slide groove and annular groove, the die-casting mold on the annular workbench can be fed with materials through the feeding groove. The layout and design of these grooves facilitate the accurate entry of raw materials into the die-casting mold for die-casting.

[0013] Furthermore, a second mounting groove is provided inside the top end of the base, and a second driving motor is fixedly installed inside the second mounting groove.

[0014] By adopting the above technical solution, the setting of the second mounting slot provides a dedicated placement space for the second drive motor. This layout helps to protect the second drive motor, reduce the impact of external factors such as dust and debris on the motor, and extend the service life of the motor.

[0015] Furthermore, the output shaft of the second driving motor passes through the top of the base and is fixedly connected to a driving gear.

[0016] By adopting the above technical solution, the second drive motor drives the drive gear to rotate.

[0017] Furthermore, an annular tooth is provided on the lower portion of the inner wall of the annular workbench, and the annular tooth is engaged with the driving gear.

[0018] By adopting the above technical solution, since the driving gear is engaged with the annular teeth on the lower part of the inner wall of the annular worktable, the rotational motion of the driving gear will be converted into annular motion of the annular worktable. This gear engagement method can accurately control the rotation of the annular worktable. By controlling the speed and direction of the second drive motor, the rotation speed and direction of the annular worktable can be accurately adjusted. For example, in the die-casting production process, according to the time requirements and sequence requirements of different die-casting processes such as feeding, die-casting, demolding, etc., the speed of the second drive motor is adjusted so that the annular worktable can send each workstation with the die-casting mold to the corresponding operating position in sequence at a predetermined speed; at the same time, the gear meshing transmission has high transmission efficiency and reliability, can stably transmit power, ensure that the annular worktable stably performs annular motion during long-term operation, and reduce the die-casting process error caused by unstable power transmission.

[0019] Furthermore, a hydraulic cylinder is fixedly mounted on the top of the support frame, and an output end at the bottom end of the hydraulic cylinder passes through the support frame and is fixedly connected to a die-cast plate.

[0020] By adopting the above technical solution, when die-casting operation is required, the hydraulic cylinder is started, and its bottom output end pushes the die-casting plate to move downward. Since the die-casting plate is located below the support frame and close to the die-casting mold on the annular workbench, when the die-casting plate moves downward, it will apply pressure to the aluminum alloy raw material located in the die-casting mold. The hydraulic cylinder can provide sufficiently large pressure according to the requirements of the die-casting process to ensure that the aluminum alloy raw material can be compacted and formed in the die-casting mold.

[0021] Furthermore, a plurality of evenly distributed pulleys are provided in an annular array at the bottom end of the annular workbench, and an annular sliding groove slidably connected with the pulleys is provided at the top end of the base.

[0022] By adopting the above technical solution, the pulley shares the weight of the annular worktable, reducing the pressure between the annular teeth and the drive gear, thereby reducing the wear on the tooth surface and extending the service life of the gear. At the same time, the pulley also helps to stabilize the height of the annular worktable, ensuring that the relative position of the annular worktable and other components such as the die-cast plate remains accurate throughout the entire working process.

[0023] The annular chute provides a precise motion path for the pulley, allowing the annular table to move in a predetermined direction during rotation. This helps improve the motion accuracy of the annular table, ensuring that each die-casting mold can accurately reach different working positions, such as the feeding position, die-casting position, and demolding position.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The utility model discloses a continuous die-casting device for aluminum alloy castings. The device adopts a circular workbench design. A plurality of die-casting molds can be arranged on the circular workbench. Through the circular movement of the circular workbench on the inner side of the support frame, each die-casting mold can be conveniently transferred to different workstations in sequence, such as a feeding station, a die-casting station and a demoulding station. Compared with the traditional linear layout or the layout of multiple independent workstations, this circular layout is more compact, reduces the time and distance for the mold to be transferred between different workstations, improves the continuity of production, and thus significantly improves the production efficiency.

[0026] (2) The utility model provides a continuous die-casting device for aluminum alloy castings. The annular worktable is positioned by structures such as limiting balls and limiting grooves, thereby ensuring its stability and accuracy during movement. At the same time, the second drive motor controls the rotation of the annular worktable by driving the gear to engage with the annular teeth on the inner wall of the annular worktable. This gear transmission method can accurately control the rotation speed and direction of the annular worktable. During the die-casting production process, each die-casting mold can be accurately sent to the corresponding operating position according to the time requirements and sequence requirements of different die-casting processes, thereby ensuring the accuracy of each process and improving the accuracy of the entire die-casting process.

[0027] (3) The utility model provides a continuous die-casting device for aluminum alloy castings. Each die-casting mold in the device is equipped with an independent first drive motor, a threaded rod and a sleeve structure for adjusting the height of the die-casting mold. This design can accurately adjust the height of the die-casting mold according to different die-casting process requirements to meet the needs of operations such as mold closing, mold opening or adjusting the relative position of the mold and other components. Accurate mold height adjustment helps to improve the quality of die-cast products and can ensure the sealing of the mold when closing the mold, thereby producing aluminum alloy castings with higher dimensional accuracy and better quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of a continuous die-casting device for aluminum alloy castings according to the present utility model.

[0029] Figure 2 This is a cross-sectional view of a continuous die-casting device for aluminum alloy castings according to the present invention.

[0030] Figure 3The utility model is a continuous die casting device for aluminum alloy castings Figure 2 Enlarged view of point A in the middle.

[0031] In the figure: 1. Base; 2. Support frame; 3. Annular workbench; 4. Limiting groove; 5. Groove; 6. Limiting ball; 7. Compression spring; 8. Feeding trough; 9. Annular groove; 10. Slide; 11. Die-casting mold; 12. First mounting groove; 13. First drive motor; 14. Threaded rod; 15. Sleeve; 16. Top plate; 17. Annular gear; 18. Second mounting groove; 19. Second drive motor; 20. Drive gear; 21. Hydraulic cylinder; 22. Die-casting plate; 23. Annular slide; 24. Pulley; 25. Through groove. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] In order to prevent the limitations of traditional die casting equipment such as non-compact process, low efficiency, inconvenient mold adjustment and maintenance caused by layout, and thus improve production efficiency, product quality and equipment maintainability, such as Figure 1 、 Figure 2 、 Figure 3 As shown, a continuous die-casting device for aluminum alloy castings comprises a base 1, the top of the base 1 is fixedly connected to a support frame 2, the inner side of the support frame 2 is slidably connected to an annular workbench 3, the annular workbench 3 is provided with a plurality of through grooves 25 and slide grooves 10 arranged in an annular array from top to bottom, an annular groove 9 is provided between the slide groove 10 and the through groove 25, a feeding groove 8 is provided on the outer wall of the support frame 2 on one side close to the annular groove 9, front and rear axial limit grooves 4 are provided on both side walls of the annular workbench 3, front and rear axial grooves 5 are respectively provided on the inner walls of both sides of the annular workbench 3 close to the limit groove 4, two limit balls 6 which can be inserted into the limit groove 4 are respectively provided in the two grooves 5, and the two limit balls 6 are connected to the annular workbench 3 on the opposite sides via front and rear axial compression springs 7;

[0034] A die-casting mold 11 is provided in the slide 10, and a top plate 16 is provided at the bottom end of the die-casting mold 11. A first mounting groove 12 is opened inside the annular workbench 3, and the first mounting groove 12 corresponds to the position and number of the slide 10 one by one. A first drive motor 13 is fixedly installed inside the first mounting groove 12, and the top output shaft of the first drive motor 13 is fixedly connected to a threaded rod 14, and the external thread of the threaded rod 14 is connected to a sleeve 15, and the top end of the sleeve 15 extends into the interior of the slide 10 and is rotatably connected to the middle part of the bottom end of the top plate 16 through a bearing.

[0035] When in use, the annular workbench 3 is positioned by the limiting grooves 4 on the two side walls and the limiting balls 6 and the compression springs 7 in the grooves 5 on the inner wall. The limiting balls 6 are inserted into the limiting grooves 4 under the action of the compression springs 7, which can ensure that the annular workbench 3 slides stably inside the support frame 2 and can slide relatively under a certain external force. The annular workbench 3 can perform circular motion inside the support frame 2, which is convenient for operations at different workstations.

[0036] When the height of the die-casting mold 11 needs to be adjusted, the first drive motor 13 in the first mounting groove 12 is started, and the output shaft of the first drive motor 13 drives the threaded rod 14 to rotate. Since the sleeve 15 is threadedly connected to the threaded rod 14, when the threaded rod 14 rotates, the sleeve 15 moves up and down along the threaded rod 14. The top of the sleeve 15 is rotatably connected to the top plate 16 at the bottom of the die-casting mold 11 through a bearing. Therefore, the up and down movement of the sleeve 15 drives the die-casting mold 11 to move up and down, thereby realizing the adjustment of the height of the die-casting mold 11 to meet different die-casting process requirements. The die-casting mold 11 is taken out by the first driving motor 13, and the threaded rod 14 is driven to rotate, so that the sleeve 15 drives the die-casting mold 11 to rise. After the die-casting mold 11 is lifted to a sufficient height, the die-casting mold 11 can be more conveniently taken out from the chute 10 of the annular workbench 3. This design avoids the problem of difficulty in taking out the mold at a fixed height, especially when space is limited or there is interference with surrounding equipment. The mold lifting function provides great convenience for the maintenance and management of the mold.

[0037] A feeding groove 8 is provided on the outer wall of the support frame 2 near the annular groove 9. Since a through groove 25, a slide groove 10 and annular groove 9 are provided on the annular workbench 3, the feeding operation can be performed on the die-casting mold 11 on the annular workbench 3 through the feeding groove 8. The layout and design of these grooves facilitate the accurate entry of the raw materials into the die-casting mold 11 for die-casting.

[0038] For example, Figure 2 As shown, the present invention further includes a second mounting groove 18 formed inside the top end of the base 1 , and a second drive motor 19 is fixedly installed inside the second mounting groove 18 .

[0039] When in use, the setting of the second mounting slot 18 provides a dedicated placement space for the second drive motor 19. This layout helps to protect the second drive motor 19, reduce the impact of external factors such as dust and debris on the motor, and extend the service life of the motor.

[0040] For example, Figure 2 As shown, the present invention further includes that the output shaft of the second driving motor 19 passes through the top of the base 1 and is fixedly connected to a driving gear 20 .

[0041] When in use, the second drive motor 19 drives the drive gear 20 to rotate.

[0042] For example, Figure 2 As shown, the present invention further includes that an annular tooth 17 is provided on the lower portion of the inner wall of the annular workbench 3 , and the annular tooth 17 is meshed with the driving gear 20 .

[0043] During use, since the driving gear 20 is meshed with the annular teeth 17 at the lower part of the inner wall of the annular worktable 3, the rotational motion of the driving gear 20 will be converted into annular motion of the annular worktable 3. This gear meshing method can accurately control the rotation of the annular worktable 3. By controlling the speed and direction of the second drive motor 19, the rotation speed and direction of the annular worktable 3 can be accurately adjusted. For example, in the die-casting production process, according to the time requirements and sequence requirements of different die-casting processes such as feeding, die-casting, and demolding, the speed of the second drive motor 19 is adjusted so that the annular worktable 3 can send each workstation with the die-casting mold 11 to the corresponding operating position in sequence at a predetermined speed; at the same time, the gear meshing transmission has high transmission efficiency and reliability, can stably transmit power, ensure that the annular worktable 3 stably performs annular motion during long-term operation, and reduce the die-casting process error caused by unstable power transmission.

[0044] For example, Figure 1 、 Figure 2 As shown, the present invention further includes that a hydraulic cylinder 21 is fixedly mounted on the top of the support frame 2 , and an output end at the bottom end of the hydraulic cylinder 21 passes through the support frame 2 and is fixedly connected to a die-cast plate 22 .

[0045] During use, when die-casting operation is required, the hydraulic cylinder 21 is started, and its bottom output end pushes the die-casting plate 22 to move downward. Since the die-casting plate 22 is located below the support frame 2 and close to the die-casting mold 11 on the annular workbench 3, when the die-casting plate 22 moves downward, it will apply pressure to the aluminum alloy raw material located in the die-casting mold 11. The hydraulic cylinder 21 can provide sufficiently large pressure according to the requirements of the die-casting process to ensure that the aluminum alloy raw material can be compacted and formed in the die-casting mold 11.

[0046] For example, Figure 2 As shown, the present invention further includes that the bottom end of the annular workbench 3 has a plurality of evenly distributed pulleys 24 in an annular array, and the top end of the base 1 is provided with an annular slot 23 slidably connected with the pulleys 24 .

[0047] When in use, the pulley 24 shares the weight of the annular worktable 3, reducing the pressure between the annular teeth 17 and the drive gear 20, thereby reducing the wear on the tooth surface and extending the service life of the gear. At the same time, the pulley 24 also helps to stabilize the height of the annular worktable 3, ensuring that the relative position of the annular worktable 3 and other components such as the die-casting plate 22 remains accurate throughout the entire working process.

[0048] The annular chute 23 provides a precise motion path for the pulley 24, allowing the annular table 3 to perform circular motion in a predetermined direction during rotation. This helps improve the motion accuracy of the annular table 3 and ensures that each die-casting mold 11 can accurately reach different working positions, such as the feeding position, die-casting position, and demolding position.

[0049] It should be noted that the present invention is a continuous die-casting device for aluminum alloy castings. According to the sequence of the die-casting process, the second drive motor 19 is started, and the second drive motor 19 drives the drive gear 20 to rotate. Since the drive gear 20 is engaged with the annular gear 17 on the lower portion of the inner wall of the annular worktable 3, the annular worktable 3 begins to move in a circular motion. According to the time requirements of different die-casting processes such as feeding, die-casting, and demolding, the speed and direction of the second drive motor 19 are controlled to sequentially move the various stations with the die-casting mold 11 to the corresponding operating positions.

[0050] First, the die-casting mold 11 is moved to the position corresponding to the feeding trough 8. When the die-casting mold 11 reaches the position corresponding to the feeding trough 8, the material is fed to the die-casting mold 11 on the annular workbench 3 through the feeding trough 8, so that the raw material can accurately enter the interior of the die-casting mold 11. The second drive motor 19 continues to drive the annular workbench 3 to rotate, and moves the die-casting mold 11 that has been fed with material to the die-casting operation position, that is, the position corresponding to the die-casting plate 22. The hydraulic cylinder 21 is started, and the output end at the bottom end of the hydraulic cylinder 21 pushes the die-casting plate 22 downward to apply pressure to the aluminum alloy raw material located in the die-casting mold 11. A sufficiently large pressure is provided according to the requirements of the die-casting process to ensure that the aluminum alloy raw material is compacted and formed in the die-casting mold 11.

[0051] After the die casting is completed, according to the specific demoulding requirements, the first drive motor 13 is started again to adjust the height of the die casting mold 11 to facilitate the demoulding operation, and then the die casting mold 11 is moved to a suitable demoulding position by the second drive motor 19 to facilitate the removal of the casting or mold cleaning and maintenance.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A continuous die-casting device for aluminum alloy castings, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a support frame (2), and the inner side of the support frame (2) is slidably connected to an annular workbench (3), and the annular workbench (3) is provided with a plurality of through grooves (25) and slide grooves (10) arranged in an annular array from top to bottom, and an annular groove (9) is provided between the slide groove (10) and the through groove (25), and a feeding groove (8) is provided on the outer wall of the support frame (2) near the annular groove (9), and the two side walls of the annular workbench (3) are provided with front and rear axial limit grooves (4), and the inner walls of the annular workbench (3) near the two sides of the limit groove (4) are respectively provided with front and rear axial grooves (5), and the two grooves (5) are respectively provided with limit balls (6) that can be inserted into the limit grooves (4), and the two limit balls (6) are connected to the annular workbench (3) on the opposite sides via front and rear axial compression springs (7); A die-casting mold (11) is provided in the slide groove (10), and a top plate (16) is provided at the bottom end of the die-casting mold (11). A first mounting groove (12) is provided inside the annular workbench (3), and the first mounting groove (12) corresponds to the position and number of the slide groove (10) one by one. A first drive motor (13) is fixedly installed inside the first mounting groove (12), and the top output shaft of the first drive motor (13) is fixedly connected to a threaded rod (14), and the external thread of the threaded rod (14) is connected to a sleeve (15), and the top end of the sleeve (15) extends to the inside of the slide groove (10) and is rotatably connected to the middle part of the bottom end of the top plate (16) through a bearing.

2. The continuous die-casting device for aluminum alloy castings according to claim 1, characterized in that: A second mounting groove (18) is provided inside the top end of the base (1), and a second drive motor (19) is fixedly installed inside the second mounting groove (18).

3. The continuous die-casting device for aluminum alloy castings according to claim 2, characterized in that: The output shaft of the second driving motor (19) passes through the top end of the base (1) and is fixedly connected to a driving gear (20).

4. The continuous die-casting device for aluminum alloy castings according to claim 1, characterized in that: The lower portion of the inner wall of the annular workbench (3) is provided with an annular tooth (17), and the annular tooth (17) is meshed with a driving gear (20).

5. The continuous die-casting device for aluminum alloy castings according to claim 1, characterized in that: A hydraulic cylinder (21) is fixedly mounted on the top of the support frame (2), and an output end at the bottom end of the hydraulic cylinder (21) passes through the support frame (2) and is fixedly connected to a die-casting plate (22).

6. The continuous die casting device for aluminum alloy castings according to claim 1, characterized in that: The bottom end of the annular workbench (3) has a plurality of evenly distributed pulleys (24) in an annular array, and the top end of the base (1) is provided with an annular sliding groove (23) slidably connected with the pulleys (24).

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