Hardware die-casting device

Abstract

The utility model discloses a hardware die-casting device which comprises a machine frame, the top end of the machine frame is fixedly connected with a base, the top of the base is provided with an installation groove, a lower die is arranged in the installation groove, an upper die is arranged on the top of the lower die, and a plurality of grooves are formed in the two sides of the upper die and the two sides of the lower die respectively. And a fixing mechanism for fixing the lower mold and the upper mold is further arranged in the base, and the fixing mechanism comprises two groups of transverse plates which are arranged in an axial relative movement manner. The device is provided with a unique fixing mechanism, traditional bolt fixing operation is abandoned, rapid and accurate mold fixing is achieved through cooperative operation of the transverse plate and the motor, the installation time is greatly shortened, the use efficiency is improved so as to meet the large-scale production requirement, the mold can be evenly stressed, the hardware size precision is guaranteed, appearance defects are reduced, and the internal quality hidden danger probability is reduced; and the comprehensive quality is comprehensively improved, and enterprises are assisted to obtain higher economic benefits.

Description

Technical Field

[0001] This utility model relates to the technical field of hardware die-casting equipment, and particularly to a hardware die-casting equipment. Background Technology

[0002] In the hardware manufacturing industry, die casting is a key technology for producing various hardware parts. It is widely used in many industries such as automobiles, machinery, and electronics. The die casting process requires the use of specialized die casting equipment to rapidly fill the mold cavity with liquid metal under high pressure, and then cool and solidify to obtain high-precision, high-quality hardware products.

[0003] Traditional die-casting equipment for hardware has many shortcomings in the mold fixing process. In the past, most of them used simple bolt and nut fixing methods. Operators had to spend a lot of time manually tightening multiple bolts to ensure that the upper and lower molds fit tightly. This was not only cumbersome and inefficient, but also difficult to accurately control the tightness of the mold closing. If not careful, uneven local stress could cause mold misalignment. This would not only affect the dimensional accuracy of the die-cast hardware, causing quality defects such as flash, burrs, and even deformation, but also frequently adjusting the mold would seriously delay the production schedule and increase production costs.

[0004] Therefore, we propose a die-casting device for hardware parts. Utility Model Content

[0005] The main purpose of this utility model is to provide a hardware die-casting device to prevent the problems of cumbersome operation, low efficiency, difficulty in controlling mold closing tightness, easy mold misalignment, poor hardware die-casting quality and high production cost in the mold fixing stage of traditional hardware die-casting devices. This device can improve the production efficiency of hardware die-casting, ensure product quality and reduce the overall cost of enterprises, and effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A die-casting device for hardware parts includes a frame, a base fixedly connected to the top of the frame, an installation groove on the top of the base, a lower mold in the installation groove, an upper mold on the top of the lower mold, and multiple grooves on both sides of the upper mold and the lower mold.

[0008] The base is also equipped with a fixing mechanism for fixing the lower mold and the upper mold. The fixing mechanism includes two sets of horizontal plates that are axially movable relative to each other. A movable frame is fixedly connected to the top of the horizontal plates. The movable frame is radially provided with two symmetrically arranged first limiting grooves and second limiting grooves. A slide is slidably connected in the first limiting groove and is sleeved on the outside of the movable frame. A second lead screw is radially rotatably connected in both first limiting grooves. A second motor is fixedly installed at the top of the movable frame. The output end of the second motor passes through the movable frame and is fixedly connected to the top of the second lead screw.

[0009] A screw is rotatably connected to the side wall of the slide away from the lower and upper molds, and the screw is slidably connected inside the second limiting groove. A third motor is fixedly installed on the outer wall of the slide away from the lower and upper molds. The output end of the third motor passes through the slide and is fixedly connected to one end of the screw. A threaded sleeve is connected to the external thread of the screw. One end of the threaded sleeve passes through the other side wall of the slide and is fixedly connected to a stop block that abuts against the groove.

[0010] By adopting the above technical solution, the lower mold is first placed in the mounting groove at the top of the base, and then the upper mold is placed above the lower mold. At this time, the grooves on both sides of the mold are in a state of waiting to be fixed.

[0011] The fixing mechanism starts working, and the two sets of axially moving horizontal plates drive the moving frame to move towards the mold, so that the moving frame is close to the lower mold and the upper mold. The second motor starts, and its output end drives the second lead screw to rotate. Since the slide is sleeved on the outside of the moving frame and is slidably connected to the first limiting groove, the rotation of the second lead screw will cause the slide to slide up and down radially on the moving frame, thereby adjusting the height of the slide so that it can be aligned with the groove on the mold.

[0012] When the third motor starts, its output drives the screw to rotate. Because the screw is slidably connected inside the second limiting groove and the screw is threaded with a sleeve, the rotation of the screw will cause the sleeve to move along the screw axis. The abutment fixedly connected to one end of the sleeve will move with the movement of the sleeve. Finally, the abutment is inserted into the groove and abuts against the groove, thereby fixing the upper and lower molds. In this way, the mold can maintain a stable mold-closing state during the die-casting process, which is convenient for die-casting operations of hardware parts.

[0013] Furthermore, the bottom ends of the two horizontal plates are respectively fixedly connected with a sleeve block and two sliders, and the sleeve block is located between the two sliders. The top two sides of the base are respectively provided with a first sliding groove that slides with the sleeve block and a second sliding groove that slides with the slider.

[0014] By adopting the above technical solution, when the fixing mechanism starts working and the horizontal plate needs to move the moving frame towards the mold, the sleeve block and slider at the bottom of the horizontal plate play a guiding role. The sleeve block slides in the first groove opened on one side of the top of the base, and the two sliders slide in the second groove opened on the other side of the top of the base. This sliding cooperation method can ensure that the horizontal plate maintains stable axial movement during the movement. Because the first and second grooves restrict the movement direction of the sleeve block and sliders, the horizontal plate can only move along the predetermined axial direction, thereby driving the moving frame to accurately approach the lower mold and the upper mold, providing precise position adjustment for subsequent mold fixing operations, and ensuring that the fixing mechanism can effectively play the role of fixing the mold.

[0015] Furthermore, a first lead screw is rotatably disposed inside the base, and the outer wall of the first lead screw is provided with two sets of opposing output threaded grooves. The two ends of the first lead screw extend into the interior of the first sliding groove and are threadedly connected to the sleeve block.

[0016] By adopting the above technical solution, when it is necessary to drive the horizontal plate to move axially, the first lead screw in the base starts to rotate. Since the outer wall of the first lead screw has two sets of opposite output threaded grooves, and both ends of the first lead screw extend into the interior of the first sliding groove and are threadedly connected to the sleeve block, according to the lead screw transmission principle, when the first lead screw rotates, the sleeve block will move along the axial direction of the first lead screw due to the threaded connection with the first lead screw. Since the sleeve block is fixed at the bottom end of the horizontal plate, the horizontal plate will move with the movement of the sleeve block. Since the two sets of threaded grooves are opposite output, the sleeve blocks at both ends will move in opposite or opposite directions, thereby driving the two sets of horizontal plates to achieve axial relative movement. This relative movement can make the moving frame on the horizontal plate move closer to or away from the mold. When it is close to the mold, it provides a basis for subsequent mold fixing operations, while when it is away from the mold, it facilitates the installation and disassembly of the mold.

[0017] Furthermore, a first motor is fixedly installed on one side of the outer wall of the base, and the output end of the first motor passes through the base and is fixedly connected to one end of the first lead screw.

[0018] By adopting the above technical solution, the output end of the first motor will generate rotational power. Since its output end passes through the base and is fixedly connected to one end of the first lead screw, the rotation of the output end of the first motor will drive the first lead screw to rotate synchronously. As mentioned above, the outer wall of the first lead screw has two sets of opposing output threaded grooves, and its two ends are respectively threadedly connected to the sleeve block at the bottom of the horizontal plate. When the first lead screw is driven to rotate by the first motor, according to the lead screw transmission principle, the sleeve block will move along the axial direction of the first lead screw, thereby driving the horizontal plate to achieve relative axial movement. In this way, by driving the first lead screw with the first motor, the movement of the horizontal plate can be precisely controlled, thereby providing power and position adjustment guarantee for subsequent operations such as moving the frame closer to or away from the mold to complete the mold fixing or disassembly.

[0019] Furthermore, two symmetrical sliding rods are fixedly installed inside the base, with the two ends of the two sliding rods extending into the interior of the corresponding second sliding groove and slidably connected to the slider.

[0020] By adopting the above technical solution, when the horizontal plate moves axially under the drive of the first lead screw, the slider connected to the bottom end of the horizontal plate will also move accordingly. Since the slider and the slide rod fixed in the base are slidably connected, and the two ends of the slide rod extend into the corresponding second slide groove, the slide rod provides a guiding function for the slider. The slider can only slide along the length of the slide rod, which ensures that the horizontal plate maintains stable axial movement during the movement. Even if some small unbalanced forces or vibrations may occur during the rotation of the first lead screw, the cooperation between the slide rod and the slider can ensure that the horizontal plate will not deviate, so that the entire fixing mechanism can accurately approach or move away from the mold, ensuring the smooth progress of mold fixing and disassembly operations.

[0021] Furthermore, a bracket is fixedly connected to the top of the frame, and a cylinder is fixedly installed at the top of the bracket. The output end of the cylinder passes through the bracket and is connected to the top of the upper mold.

[0022] By adopting the above technical solution, in the entire process of the die-casting device for hardware parts, when a mold-closing operation is required for subsequent die-casting processes, the cylinder fixedly installed on the support at the top of the frame begins to work. Through the action of gas pressure inside the cylinder, its output end generates a downward thrust. During mold closing, since the output end of the cylinder passes through the support and connects to the top of the upper mold, the thrust generated by the cylinder's output end pushes the upper mold downwards. Under the push of the cylinder, the upper mold gradually approaches the lower mold until it is completely closed. After mold closing is completed, the entire mold cavity is sealed, and the die can be cast. In the die-casting process of hardware parts, liquid metal and other raw materials are injected into the mold cavity to form the hardware parts. When the die casting is completed and the molded hardware parts need to be removed, the gas pressure inside the cylinder changes, and its output end generates an upward pulling force. When the mold is opened, it pulls the upper mold upward, separating the upper mold from the lower mold, which facilitates the subsequent removal of the die-cast hardware parts. Through the pushing and pulling action of the cylinder on the upper mold, the opening and closing operation of the upper and lower molds is realized, providing key power and motion support for the die casting process of hardware parts, such as mold closing and die casting, and mold opening and part removal.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The hardware die-casting device of this utility model is equipped with a unique fixing mechanism that eliminates the traditional complicated bolt fixing operation. Through two sets of axially moving horizontal plates, the moving frame can be quickly driven to approach the mold. Then, the second motor and the third motor work together to quickly adjust the height of the slide and push the abutment block to accurately embed into the groove, thereby fixing the mold. Compared with the previous manual bolt tightening method, the entire fixing process is greatly simplified and the time consumption is significantly shortened. In the production scenario of frequent mold changes, the time for each mold installation and fixing can be reduced from the original ten minutes or even half an hour to less than a few minutes, which greatly improves the overall efficiency of the die-casting device and allows the production line to operate at high speed, meeting the needs of large-scale production.

[0025] (2) The hardware die-casting device of this utility model can accurately insert the abutment into the grooves on both sides of the mold by the fixing mechanism, so that the upper mold and the lower mold are subjected to uniform force in all directions, effectively avoiding the problem of misalignment and shaking of the mold during the die-casting process. The stable mold closing state allows the liquid metal to be formed strictly according to the predetermined shape of the mold when it is injected into the cavity under high pressure, thus ensuring the dimensional accuracy of the produced hardware parts and greatly reducing appearance defects such as flash and burrs. At the same time, the stable mold closing also helps to maintain the stability of the molten metal filling process, reducing the probability of internal quality problems such as air holes and shrinkage caused by mold loosening, comprehensively improving the overall quality of hardware parts, enhancing the market competitiveness of products, and helping enterprises to achieve higher economic benefits. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a hardware die-casting device according to the present invention.

[0027] Figure 2 This is a schematic diagram of the fixing mechanism of a hardware die-casting device according to the present invention.

[0028] Figure 3 This is a cross-sectional view of the base of a hardware die-casting device according to this utility model.

[0029] Figure 4 This is a cross-sectional view of the movable frame of a hardware die-casting device according to the present invention.

[0030] Figure 5 This is a cross-sectional view of the movable frame of a hardware die-casting device according to the present invention.

[0031] Figure 6 This is a schematic diagram of the connection structure between the first lead screw and the sleeve block of a hardware die-casting device according to the present invention.

[0032] Figure 7 This is a schematic diagram of the upper and lower mold structures of a hardware die-casting device according to the present invention.

[0033] In the diagram: 1. Frame; 2. Base; 3. Fixing mechanism; 4. Sleeve block; 5. First slide groove; 6. First lead screw; 7. First motor; 8. Horizontal plate; 9. Moving frame; 10. First limiting groove; 11. Second lead screw; 12. Slide frame; 13. Second motor; 14. Second limiting groove; 15. Screw; 16. Third motor; 17. Screw sleeve; 18. Abutment block; 19. Lower mold; 20. Upper mold; 21. Groove; 22. Second slide groove; 23. Slide rod; 24. Slider; 25. Bracket; 26. Cylinder; 27. Mounting groove. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0035] To prevent the problems associated with traditional die-casting equipment, such as cumbersome operation, low efficiency, difficulty in controlling mold clamping tightness, easy mold misalignment, poor die-casting quality, and excessively high production costs in the mold fixing stage, and thus improve the production efficiency of die-casting, ensure product quality, and reduce the overall cost for enterprises, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, a hardware die-casting device includes a frame 1, a base 2 fixedly connected to the top of the frame 1, an installation groove 27 is provided on the top of the base 2, a lower mold 19 is provided in the installation groove 27, an upper mold 20 is provided on the top of the lower mold 19, and multiple grooves 21 are provided on both sides of the upper mold 20 and the lower mold 19.

[0036] The base 2 is also provided with a fixing mechanism 3 for fixing the lower mold 19 and the upper mold 20. The fixing mechanism 3 includes two sets of horizontal plates 8 that are axially movable relative to each other. The top of the horizontal plates 8 is fixedly connected to a movable frame 9. The movable frame 9 is provided with two symmetrically arranged first limiting grooves 10 and second limiting grooves 14 in the radial direction. A slide 12 is slidably connected in the first limiting groove 10 and is sleeved on the outside of the movable frame 9. A second lead screw 11 is rotatably connected in the radial direction in both first limiting grooves 10. A second motor 13 is fixedly installed at the top of the movable frame 9. The output end of the second motor 13 passes through the movable frame 9 and is fixedly connected to the top of the second lead screw 11.

[0037] A screw 15 is rotatably connected to the side wall of the slide 12 away from the lower mold 19 and the upper mold 20, and the screw 15 is slidably connected inside the second limiting groove 14. A third motor 16 is fixedly installed on the outer wall of the slide 12 away from the lower mold 19 and the upper mold 20. The output end of the third motor 16 passes through the slide 12 and is fixedly connected to one end of the screw 15. A threaded sleeve 17 is threaded to the outside of the screw 15. One end of the threaded sleeve 17 passes through the other side wall of the slide 12 and is fixedly connected to a stop block 18 that abuts against the groove 21.

[0038] When in use, first place the lower mold 19 in the mounting groove 27 at the top of the base 2, and then place the upper mold 20 on top of the lower mold 19. At this time, the grooves 21 on both sides of the mold are in a state of waiting to be fixed.

[0039] When the fixing mechanism 3 starts working, the two sets of axially moving horizontal plates 8 drive the moving frame 9 to move towards the mold, so that the moving frame 9 is close to the lower mold 19 and the upper mold 20. The second motor 13 starts, and its output end drives the second lead screw 11 to rotate. Since the slide 12 is sleeved on the outside of the moving frame 9 and is slidably connected to the first limiting groove 10, the rotation of the second lead screw 11 will cause the slide 12 to slide up and down radially on the moving frame 9, thereby adjusting the height of the slide 12 so that it can be aligned with the groove 21 on the mold.

[0040] The third motor 16 starts, and its output end drives the screw 15 to rotate. Because the screw 15 is slidably connected inside the second limiting groove 14, and the screw 15 is threadedly connected to the screw sleeve 17, the rotation of the screw 15 will cause the screw sleeve 17 to move along the axial direction of the screw 15. The abutment 18 fixedly connected to one end of the screw sleeve 17 will move with the movement of the screw sleeve 17. Finally, the abutment 18 is inserted into the groove 21 and abuts against the groove 21, thereby fixing the upper mold 20 and the lower mold 19. In this way, the mold can maintain a stable mold closing state during the die casting process, which is convenient for the die casting operation of hardware parts.

[0041] For example, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the present invention also includes a sleeve block 4 and two sliders 24 fixedly connected to the bottom ends of the two horizontal plates 8 respectively, and the sleeve block 4 is located between the two sliders 24. The top two sides of the base 2 are respectively provided with a first sliding groove 5 that slides with the sleeve block 4 and a second sliding groove 22 that slides with the sliders 24.

[0042] When the fixing mechanism 3 starts working and the horizontal plate 8 needs to move the moving frame 9 towards the mold, the sleeve block 4 and slider 24 at the bottom of the horizontal plate 8 play a guiding role. The sleeve block 4 slides in the first groove 5 opened on one side of the top of the base 2, and the two sliders 24 slide in the second groove 22 opened on the other side of the top of the base 2. This sliding cooperation method can ensure that the horizontal plate 8 maintains stable axial movement during the movement. Because the first groove 5 and the second groove 22 restrict the movement direction of the sleeve block 4 and the slider 24, the horizontal plate 8 can only move along the predetermined axial direction, thereby driving the moving frame 9 to accurately approach the lower mold 19 and the upper mold 20, providing precise position adjustment for subsequent mold fixing operations, and ensuring that the fixing mechanism can effectively play the role of fixing the mold.

[0043] For example, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the present invention also includes a first lead screw 6 rotatably disposed inside the base 2, and the outer wall of the first lead screw 6 is provided with two sets of opposite output threaded grooves. The two ends of the first lead screw 6 extend into the interior of the first sliding groove 5 and are threadedly connected to the sleeve block 4.

[0044] In use, when it is necessary to drive the horizontal plate 8 to move axially, the first lead screw 6 inside the base 2 starts to rotate. Since the outer wall of the first lead screw 6 has two sets of opposite output threaded grooves, and both ends of the first lead screw 6 extend into the interior of the first sliding groove 5 and are threadedly connected to the sleeve block 4, according to the lead screw transmission principle, when the first lead screw 6 rotates, the sleeve block 4 will move along the axial direction of the first lead screw 6 due to the threaded connection with the first lead screw 6. Since the sleeve block 4 is fixed at the bottom end of the horizontal plate 8, the horizontal plate 8 will move with the movement of the sleeve block 4. Since the two sets of threaded grooves are opposite output, the sleeve blocks 4 at both ends will move in opposite or opposite directions, thereby driving the two sets of horizontal plates 8 to achieve axial relative movement. This relative movement can allow the moving frame 9 on the horizontal plate 8 to move closer to or away from the mold. When it is close to the mold, it provides a basis for subsequent mold fixing operations, while when it is away from the mold, it facilitates the installation and disassembly of the mold.

[0045] For example, such as Figure 2 , Figure 3 , Figure 4 , Figure 6 As shown, the present invention also includes a first motor 7 fixedly installed on one side outer wall of the base 2, the output end of the first motor 7 passing through the base 2 and fixedly connected to one end of the first lead screw 6.

[0046] In use, the output end of the first motor 7 generates rotational power. Since its output end passes through the base 2 and is fixedly connected to one end of the first lead screw 6, the rotation of the output end of the first motor 7 will drive the first lead screw 6 to rotate synchronously. As mentioned above, the outer wall of the first lead screw 6 has two sets of opposing output threaded grooves, and its two ends are respectively threaded to the sleeve block 4 at the bottom of the horizontal plate 8. When the first lead screw 6 is driven to rotate by the first motor 7, according to the lead screw transmission principle, the sleeve block 4 will move along the axial direction of the first lead screw 6, thereby driving the horizontal plate 8 to achieve relative axial movement. In this way, by driving the first lead screw 6 through the first motor 7, the movement of the horizontal plate 8 can be precisely controlled, thus providing power and position adjustment for the subsequent moving frame 9 to move closer to or away from the mold to complete the mold fixing or disassembly operations.

[0047] For example, such as Figure 2 , Figure 3 , Figure 5 As shown, the present invention also includes two symmetrical sliding rods 23 fixedly disposed inside the base 2. The two ends of the two sliding rods 23 extend into the interior of the corresponding second sliding grooves 22 and are slidably connected to the slider 24.

[0048] In use, when the horizontal plate 8 moves axially under the drive of the first lead screw 6, the slider 24 connected to the bottom end of the horizontal plate 8 will also move accordingly. Since the slider 24 is slidably connected to the slide rod 23 fixed in the base 2, and both ends of the slide rod 23 extend into the corresponding second slide groove 22, the slide rod 23 provides a guiding function for the slider 24. The slider 24 can only slide along the length direction of the slide rod 23, which ensures that the horizontal plate 8 maintains stable axial movement during the movement. Even if some small unbalanced forces or vibrations may occur during the rotation of the first lead screw 6, the cooperation between the slide rod 23 and the slider 24 can ensure that the horizontal plate 8 will not deviate, so that the entire fixing mechanism can accurately approach or move away from the mold, ensuring the smooth progress of mold fixing and disassembly operations.

[0049] For example, such as Figure 1 As shown, the present invention also includes a bracket 25 fixedly connected to the top of the frame 1, a cylinder 26 fixedly installed at the top of the bracket 25, and the output end of the cylinder 26 passing through the bracket 25 and connected to the top of the upper mold 20.

[0050] During operation, in the entire process of the die-casting device, when a mold-closing operation is required for the subsequent die-casting process, the cylinder 26, fixedly mounted on the support 25 at the top of the frame 1, begins to work. Through the action of gas pressure, the output end of the cylinder 26 generates a downward thrust. During mold closing, since the output end of the cylinder 26 passes through the support 25 and connects to the top of the upper mold 20, the thrust generated by the output end of the cylinder 26 pushes the upper mold 20 downwards. Under the push of the cylinder 26, the upper mold 20 gradually approaches the lower mold 19 until it is completely closed with the lower mold 19. After mold closing is completed, the entire mold cavity is sealed. This allows for the die-casting of hardware parts, where liquid metal and other raw materials are injected into the mold cavity to form the hardware parts. When die-casting is complete and the molded hardware parts need to be removed, the gas pressure inside the cylinder 26 changes, and its output end generates an upward pulling force. During mold opening, this pulls the upper mold 20 upward, separating it from the lower mold 19, making it easier to remove the die-cast hardware parts. Through the pushing and pulling action of the cylinder 26 on the upper mold 20, the opening and closing operations of the upper mold 20 and the lower mold 19 are realized, providing key power and motion support for the die-casting process and the opening and removal of parts.

[0051] It should be noted that this utility model is a hardware die-casting device. The lower mold 19 is placed in the mounting groove 27 at the top of the base 2, and then the upper mold 20 is placed above the lower mold 19. At this time, the grooves 21 on both sides of the mold are in a state of waiting to be fixed.

[0052] The first motor 7 on one side of the outer wall of the start base 2 is activated. The output end of the first motor 7 drives the first lead screw 6, which is fixedly connected to it, to rotate. Since the outer wall of the first lead screw 6 has two sets of opposite output threaded grooves, and its two ends are respectively threaded to the sleeve block 4 at the bottom of the horizontal plate 8, according to the lead screw transmission principle, the sleeve block 4 will move along the axial direction of the first lead screw 6, driving the horizontal plate 8 to move axially relative to each other. The sleeve block 4 at the bottom of the horizontal plate 8 slides in the first slide groove 5, and the slider 24 slides in the second slide groove 22. At the same time, the slider 24 slides along the length direction of the slide rod 23 to ensure the stable axial movement of the horizontal plate 8, so that the moving frame 9 on the horizontal plate 8 is close to the mold.

[0053] The second motor 13 starts, and its output end drives the second lead screw 11 to rotate. Since the slide 12 is sleeved on the outside of the movable frame 9 and is slidably connected to the first limiting groove 10, the rotation of the second lead screw 11 causes the slide 12 to slide up and down radially on the movable frame 9, thereby adjusting the height of the slide 12 so that it is aligned with the groove 21 on the mold.

[0054] The third motor 16 starts, and its output end drives the screw 15 to rotate. Since the screw 15 is slidably connected inside the second limiting groove 14 and threadedly connected to the screw sleeve 17, the rotation of the screw 15 causes the screw sleeve 17 to move along the axial direction of the screw 15. The abutment 18 fixedly connected to one end of the screw sleeve 17 moves accordingly. Finally, the abutment 18 is inserted into the groove 21 and abuts against the groove 21, thereby fixing the upper mold 20 and the lower mold 19.

[0055] The cylinder 26 fixedly installed on the start bracket 25 generates a downward thrust at the output end of the cylinder 26, which pushes the upper mold 20 downward, gradually bringing it closer to the lower mold 19 until the mold is completely closed, sealing the mold cavity and preparing for the die casting of hardware parts.

[0056] After the mold is closed, liquid metal and other raw materials are injected into the mold cavity to complete the die casting of the hardware parts;

[0057] After die casting is completed, the gas pressure inside cylinder 26 changes, and the output end generates an upward pulling force, which pulls the upper mold 20 upward, causing the upper mold 20 to separate from the lower mold 19.

[0058] Reverse the steps of fixing the mold and driving the horizontal plate to move the moving frame 9 away from the mold, then remove the upper and lower molds to complete one die-casting operation of hardware parts.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A die-casting apparatus for hardware parts, comprising a frame (1), characterized in that, The top of the frame (1) is fixedly connected to a base (2), and the top of the base (2) is provided with an installation groove (27). A lower mold (19) is provided in the installation groove (27), and an upper mold (20) is provided on the top of the lower mold (19). Both sides of the upper mold (20) and the lower mold (19) are provided with multiple grooves (21). The base (2) is also provided with a fixing mechanism (3) for fixing the lower mold (19) and the upper mold (20). The fixing mechanism (3) includes two sets of horizontal plates (8) that are axially movable relative to each other. A movable frame (9) is fixedly connected to the top of the horizontal plate (8). The movable frame (9) is provided with two symmetrically arranged first limiting grooves (10) and second limiting grooves (14) in the radial direction. A slide (12) is slidably connected in the first limiting groove (10) and the slide (12) is sleeved on the outside of the movable frame (9). A second screw (11) is rotatably connected in the radial direction in both first limiting grooves (10). A second motor (13) is fixedly installed at the top of the movable frame (9). The output end of the second motor (13) passes through the movable frame (9) and is fixedly connected to the top of the second screw (11). A screw (15) is rotatably connected to the side wall of the slide (12) away from the lower mold (19) and the upper mold (20), and the screw (15) is slidably connected inside the second limiting groove (14). A third motor (16) is fixedly installed on the outer wall of the slide (12) away from the lower mold (19) and the upper mold (20). The output end of the third motor (16) passes through the slide (12) and is fixedly connected to one end of the screw (15). A threaded sleeve (17) is connected to the external thread of the screw (15). One end of the threaded sleeve (17) passes through the other side wall of the slide (12) and is fixedly connected to a stop block (18) that abuts against the groove (21).

2. The hardware die-casting device according to claim 1, characterized in that: The bottom ends of the two horizontal plates (8) are respectively fixedly connected to a sleeve block (4) and two sliders (24), and the sleeve block (4) is located between the two sliders (24). The top sides of the base (2) are respectively provided with a first sliding groove (5) that slides with the sleeve block (4) and a second sliding groove (22) that slides with the sliders (24).

3. The hardware die-casting device according to claim 2, characterized in that: The base (2) is rotatably provided with a first lead screw (6), and the outer wall of the first lead screw (6) is provided with two sets of opposite output threaded grooves. The two ends of the first lead screw (6) extend into the interior of the first slide groove (5) and are threadedly connected to the sleeve block (4).

4. The hardware die-casting device according to claim 1, characterized in that: A first motor (7) is fixedly installed on one side of the outer wall of the base (2). The output end of the first motor (7) passes through the base (2) and is fixedly connected to one end of the first lead screw (6).

5. The hardware die-casting device according to claim 1, characterized in that: Two symmetrical slide rods (23) are fixedly installed inside the base (2). The two ends of the two slide rods (23) extend into the interior of the corresponding second slide groove (22) and are slidably connected to the slider (24).

6. The hardware die-casting device according to claim 1, characterized in that: A bracket (25) is fixedly connected to the top of the frame (1), and a cylinder (26) is fixedly installed on the top of the bracket (25). The output end of the cylinder (26) passes through the bracket (25) and is connected to the top of the upper mold (20).

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