Die casting device for copper casting fire coupling production

Abstract

The invention discloses a die-casting device for copper casting fire coupling production, and relates to the technical field of die-casting machines, the die-casting device comprises a workbench, the top of the workbench is fixedly provided with a supporting frame, the top of the supporting frame is highly provided with a hydraulic driving device, and the output end of the hydraulic driving device is fixedly provided with a movable die plate; the movable mold plate is used for installing an upper mold, and the fixed plate is fixedly installed on the inner wall of the workbench; the lifting device fixedly penetrates through the bottom of the fixing plate; the fixed mold plate is fixedly mounted at the output end of the lifting device, and the lifting device is used for driving the fixed mold plate to do vertical displacement; by means of the lifting design of the fixed mold plate, the assembling and disassembling steps of the lower mold are simplified, the replacement time of the lower mold is shortened, and it is guaranteed that the lower mold is always precisely positioned in the die-casting operation.

Description

Technical Field

[0001] This invention relates to the field of die-casting machine technology, specifically to a die-casting device for producing copper-cast fire-fighting interfaces. Background Technology

[0002] Fire-fighting interfaces are key connectors in fire-fighting water supply systems, and copper-cast fire-fighting interface die-casting devices are specialized equipment used for die-casting fire-fighting interfaces.

[0003] Patent publication number CN220278245U relates to an easily disassembled mold clamping mechanism for a die-casting machine, belonging to the field of die-casting machine technology. It includes a support unit comprising a die-casting machine support frame. The upper side of the support frame has a sliding groove, and the inner side of the sliding groove has a positioning hole. A guide hole is also provided on the upper side of the die-casting machine support frame. A lower mold is disposed on the upper side of the die-casting machine support frame. A lower mold disassembly / assembly part is disposed on one side of the lower mold, including a receiving groove. A guide groove is provided within the receiving groove, and a spring is disposed within the guide groove. One end of the spring has a positioning rod, and one end of the positioning rod is located within a positioning hole. An adjustment component is provided on the upper side of the positioning rod. A sliding strip matching the sliding groove is provided on the lower side of the lower mold. This patent solves the problem of inconvenient mold disassembly / assembly, providing a convenient mold disassembly / assembly function.

[0004] In the aforementioned patent, a sliding bar is installed on the lower mold to allow it to slide smoothly within the groove, thus solving the problem of inconvenient mold assembly and disassembly. However, when disassembling the lower mold used for the production of copper-cast fire-fighting interfaces, the large weight of the lower mold itself directly leads to a significant increase in the normal pressure on the contact surface between the sliding bar and the groove as the lower mold slides within the groove. This results in a substantial increase in frictional resistance during the sliding process. This not only increases the labor intensity of the operators during assembly and disassembly but also causes severe wear on the lower surface of the lower mold due to continuous high-intensity friction. As the number of times the lower mold is assembled and disassembled increases, the wear gradually accumulates, leading to a decrease in the accuracy of the lower mold's reference plane, exacerbating the shaking during the sliding process, and making it difficult to maintain consistent positioning accuracy of the lower mold after installation. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a die-casting device for the production of copper-cast fire-fighting interfaces, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a die-casting device for producing copper-cast fire-fighting couplings, comprising a workbench, a support frame fixedly mounted on the top of the workbench, a hydraulic drive device mounted at the top height of the support frame, a movable template fixedly mounted on the output end of the hydraulic drive device, the movable template being used to mount an upper mold, and further comprising: a fixed plate fixedly mounted on the inner wall of the workbench; a lifting device fixedly extending through the bottom of the fixed plate; and a fixed template fixedly mounted on the output end of the lifting device, the lifting device being used to drive the fixed template to make vertical displacement, the top of the fixed template having an opening The device includes a docking hole; a lower mold that contacts the top of a fixed template and has an installation hole at its bottom; when the lifting device is activated, its output end steadily pushes the fixed template upward, and the fixed template synchronously moves the lower mold upward; an elastic telescopic rod that is fixedly installed in the installation hole of the lower mold, with its telescopic end contacting the inner wall of the docking hole; the lower mold causing the elastic telescopic rod to rise, causing its telescopic end to separate from the docking hole during the rise; and a rectangular frame that is fixedly installed on the top of a fixed plate, with its inner wall polished to a smooth state, and the inner wall of the rectangular frame fitting against the outer wall of the lower mold.

[0007] According to the above technical solution, the outer side wall of the lower mold is fixedly installed with lifting lugs. The lifting lugs are used to cooperate with the lifting equipment to provide stable lifting support points for the assembly and disassembly of the lower mold. The lifting slings of the lifting equipment are precisely connected to the four lifting lugs of the lower mold. After confirming that the four lifting points are in a symmetrical stress state, the lower mold is slowly lifted by the lifting equipment.

[0008] According to the above technical solution, a wheel frame is fixedly installed on the outer wall of the fixed template, and a roller is rotatably installed on the inner wall of the wheel frame. The roller contacts the inner wall of the rectangular frame, and the fixed template synchronously drives the wheel frame to move together. The wheel frame further drives the roller to roll smoothly along the inner wall of the rectangular frame. A guide plate is fixedly installed on the inner wall of the rectangular frame, and the guide plate contacts the outer wall of the wheel frame. The guide plate is used to constrain the movement trajectory of the roller.

[0009] According to the above technical solution, a support plate is fixedly installed on the inner wall of the rectangular frame. The support plate is fixedly connected to the top of the guide plate and fits against the bottom of the lower mold. The support plate provides additional bottom support force for the lower mold, ensuring that the lower mold is stably maintained in the designated working position.

[0010] According to the above technical solution, the top of the fixed plate is provided with a stabilizing device for improving the stability of the fixed template, and the stabilizing device is provided with a limiting device for limiting the displacement distance; the stabilizing device includes a rectangular shell, a cylindrical rod, a contact plate, a rectangular plate and a spring. Under the action of thrust, the rectangular plate drives the cylindrical rod to move upward, and the cylindrical rod further drives the contact plate to move upward. The rectangular shell is fixedly installed on the top of the fixed plate, the cylindrical rod slides through the top of the rectangular shell, the contact plate is fixedly installed on the top of the cylindrical rod, and the rectangular plate is fixedly installed on the bottom of the cylindrical rod. A spring is provided between the rectangular shell and the rectangular plate. The outer wall of the rectangular plate is in contact with the inner wall of the rectangular shell. The pressure applied by the fixed template to the contact plate will gradually decrease with displacement, and the spring in the compressed state releases the stored elastic potential energy.

[0011] According to the above technical solution, the cylindrical rod has a through hole on its circumferential surface, a vertical rod is fixedly installed on the bottom of the inner wall of the rectangular shell, a blind hole is opened at the bottom of the cylindrical rod, the circumferential surface of the vertical rod contacts the inner wall of the blind hole, and the rectangular shell provides a continuous and stable support force for the vertical rod, which is smoothly transmitted to the cylindrical rod.

[0012] According to the above technical solution, the limiting device includes a round tube, a pin, a mounting plate, and an elastic ring. The round tube then drives the mounting plate and the connecting plate to move downward together. The round tube is set on the circumferential surface of the cylindrical rod. The pin is fixedly inserted through the circumferential surface of the round tube. The mounting plate is fixedly installed at the bottom of the round tube. The elastic ring is fixedly installed at the bottom of the mounting plate. The pin fits against the inner wall of the through hole. The elastic ring contacts the top of the rectangular shell.

[0013] According to the above technical solution, a connecting plate is fixedly installed on the circumferential surface of the circular tube, a lifting plate is fixedly installed at the bottom of the connecting plate, a support frame is slidably installed on the surface of the lifting plate, the support frame is fixedly connected to the top of the fixed plate, and the connecting plate drives the lifting plate to move upward smoothly along the inner wall of the support frame.

[0014] This invention provides a die-casting apparatus for the production of copper-cast fire-fighting couplings. It has the following beneficial effects: (1) The die-casting device for the production of copper-cast fire-fighting interfaces has a rectangular frame and a support plate working together to provide additional lateral limiting and bottom support for the lower mold. The lifting design of the fixed template simplifies the loading and unloading steps of the lower mold, shortens the replacement time of the lower mold, and ensures that the lower mold is always accurately positioned during the die-casting operation under the lateral limiting of the rectangular frame and the dual support of the support plate and the fixed template. (2) The die-casting device for the production of copper fire-fighting interfaces has an elastic telescopic rod whose telescopic end will automatically retract due to its own elastic characteristics, avoiding damage to the lower mold and fixed mold caused by hard collision. Through the elastic buffer design of the elastic telescopic rod, the positioning damage between the fixed mold and the lower mold is avoided, so that the lower mold remains accurate in the die-casting operation, thereby ensuring the forming accuracy of the copper fire-fighting interface. At the same time, the roller rolls smoothly to reduce the resistance when the fixed mold is displaced. By enhancing the stability of the outer wall of the fixed mold, it can maintain smooth operation during the displacement process and suppress the shaking of the fixed mold during the die-casting process, thus ensuring the stability of the die-casting operation of the copper fire-fighting interface. (3) The die-casting device used for the production of copper fire-fighting interfaces has a contact plate that is always in contact with the bottom of the fixed template and applies an upward auxiliary thrust to the bottom of the fixed template. By applying a stable auxiliary thrust to the fixed template from four symmetrical points, it can avoid uneven force on the fixed template caused by single-point thrust and reduce the driving burden of the lifting device, ensuring that the entire displacement process remains smooth. At the same time, the vertical rod guides the cylindrical rod longitudinally and limits it radially, so that the cylindrical rod remains stable during the displacement process. Through the stable support of the vertical rod on the cylindrical rod, it is ensured that the cylindrical rod drives the contact plate to always be in contact with the bottom of the fixed template, so that the auxiliary thrust of the spring can be evenly transmitted to the four corners of the fixed template. (4) The die-casting device used for the production of copper fire-fighting interfaces, under the linkage action of the connecting plate, ensures that the four round pipes remain on the same horizontal plane during displacement. Through the linkage action of the connecting plate, the uniformity of the displacement of the cylindrical rod is improved, and the force on the four corners of the bottom of the fixed template is more uniform, thereby avoiding the fixed template from tilting due to force imbalance and affecting the quality of die casting. At the same time, the elastic ring absorbs the impact force through deformation, avoiding direct contact between the mounting plate and the rectangular shell to prevent collision damage. By setting the elastic ring between the mounting plate and the rectangular shell, its elasticity is used to avoid impact damage, ensuring that the fixed template drives the lower mold to descend smoothly, and providing a guarantee for the accurate installation of the lower mold. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the fixed plate position structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the rectangular frame of the present invention; Figure 4 This is a schematic diagram of the position structure of the fixed template and the lower mold of the present invention; Figure 5 This is a schematic diagram of the position and structure of the elastic telescopic rod of the present invention; Figure 6 This is a schematic diagram showing the position and structure of the guide plate and support plate of the present invention; Figure 7 This is a schematic diagram of the internal structure of the rectangular shell of the present invention; Figure 8For the present invention Figure 7 Enlarged structural diagram at point A in the middle; Figure 9 This is a schematic diagram of the vertical rod position structure of the present invention; Figure 10 This is a schematic diagram of the pin structure of the present invention.

[0016] In the diagram: 1. Workbench; 2. Support frame; 3. Hydraulic drive device; 4. Moving template; 5. Fixed plate; 6. Lifting device; 7. Fixed template; 8. Lower mold; 9. Elastic telescopic rod; 10. Rectangular frame; 11. Wheel frame; 12. Roller; 13. Guide plate; 14. Support plate; 21. Rectangular shell; 22. Cylindrical rod; 23. Contact plate; 24. Rectangular plate; 25. Spring; 26. Vertical rod; 31. Round tube; 32. Pin post; 33. Mounting plate; 34. Elastic ring; 35. Connecting plate; 36. Lifting plate; 37. Support frame. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1 - Figure 10 One embodiment of the present invention is: a die-casting device for producing copper-cast fire-fighting couplings, comprising a workbench 1, a support frame 2 fixedly mounted on the top of the workbench 1, a hydraulic drive device 3 mounted at the top height of the support frame 2, a movable template 4 fixedly mounted on the output end of the hydraulic drive device 3, the movable template 4 being used to mount an upper mold, and further comprising: a fixed plate 5 fixedly mounted on the inner wall of the workbench 1; a lifting device 6 fixedly extending through the bottom of the fixed plate 5; and a fixed template 7 fixedly mounted on the output end of the lifting device 6, the lifting device 6 being used to drive the fixed template 7 to a vertical position. The fixed template 7 has a docking hole at its top; the lower mold 8 contacts the top of the fixed template 7 and has an installation hole at its bottom; the elastic telescopic rod 9 is fixedly installed in the installation hole of the lower mold 8, and the telescopic end of the elastic telescopic rod 9 contacts the inner wall of the docking hole; the rectangular frame 10 is fixedly installed on the top of the fixed plate 5, and the inner wall of the rectangular frame 10 is polished to a smooth state. The inner wall of the rectangular frame 10 fits against the outer wall of the lower mold 8. The lifting design of the fixed template 7 simplifies the loading and unloading steps of the lower mold 8 and shortens the replacement time of the lower mold 8.

[0019] Lifting lugs are fixedly installed on the outer side wall of the lower mold 8. The lifting lugs are used to cooperate with the lifting equipment to provide a stable lifting support for the assembly and disassembly of the lower mold 8. By installing lifting lugs on the outer side wall of the lower mold 8, it is ensured that the lifting equipment can stably lift the lower mold 8.

[0020] A wheel frame 11 is fixedly installed on the outer wall of the fixed template 7. A roller 12 is rotatably installed on the inner wall of the wheel frame 11. The roller 12 contacts the inner wall of the rectangular frame 10. A guide plate 13 is fixedly installed on the inner wall of the rectangular frame 10. The guide plate 13 contacts the outer wall of the wheel frame 11. The guide plate 13 is used to constrain the movement trajectory of the roller 12. By enhancing the stability of the outer wall of the fixed template 7, it can maintain smooth operation during displacement and suppress the shaking of the fixed template 7 during the die casting process.

[0021] A support plate 14 is fixedly installed on the inner wall of the rectangular frame 10. The support plate 14 is fixedly connected to the top of the guide plate 13 and fits against the bottom of the lower mold 8. The use of the support plate 14 improves the stability of the lower mold 8 after installation and prevents accidents from happening.

[0022] In this embodiment, when disassembling the lower mold 8, the lifting device 6 is first activated. Its output end will stably push the fixed template 7 upward. The fixed template 7 synchronously drives the lower mold 8 to move upward together. During the upward movement, the lower mold 8 first separates from the support plate 14, and then gradually disengages from the rectangular frame 10. After the lower mold 8 moves to the preset disassembly position, the operator precisely connects the lifting slings of the lifting equipment to the four lifting lugs of the lower mold 8. After confirming that the four lifting points are in a symmetrical force state, the lower mold 8 is slowly lifted by the lifting equipment. During this process, the lower mold 8 drives the elastic telescopic rod 9 to rise together. As the lifting height increases, the lower mold 8 disengages from the fixed template 7. At the same time, the telescopic end of the elastic telescopic rod 9 also separates from the docking hole during the rise. After the lower mold 8 is raised to the specified height that meets the requirements for the translation operation, the lifting equipment is controlled to drive the lower mold 8 to move from directly above the fixed template 7 to the safe storage area, completing the entire disassembly process. When installing the lower mold 8, first use a lifting device to move the lower mold 8 from the safe storage area to directly above the fixed template 7. Then, precisely adjust the angle and position of the lower mold 8 to ensure that the elastic telescopic rod 9 at the bottom of the lower mold 8 is accurately aligned with the docking hole. Next, control the lifting device to slowly lower the lower mold 8. After the elastic telescopic rod 9 is accurately aligned with the docking hole, the lower mold 8 will continue to descend smoothly until it is completely in contact with the fixed template 7. At this point, disconnect the lifting device from the lifting lugs of the lower mold 8, and let the fixed template 7 fully support the weight of the lower mold 8. Then, start the lifting device 6, so that its output end drives the fixed template 7 to slowly move down. The fixed template 7 will move the lower mold 8 down together. During the descent process... In the process, the outer wall of the lower mold 8 fits against the inner wall of the rectangular frame 10 until the bottom of the lower mold 8 contacts the support plate 14. At this point, the lifting device 6 immediately stops working, and the lower mold 8 is stably stopped at the designated height, completing the entire installation process. After installation, the rectangular frame 10 and the support plate 14 will cooperate to provide additional lateral limiting and bottom support for the lower mold 8, ensuring that the lower mold 8 is stably kept in the designated working position. The lifting design of the fixed template 7 simplifies the loading and unloading steps of the lower mold 8, shortens the replacement time of the lower mold 8, and ensures that the lower mold 8 maintains accurate positioning during the die casting operation under the lateral limiting of the rectangular frame 10 and the dual support of the support plate 14 and the fixed template 7. During the installation process of lowering the lower mold 8 using lifting equipment, if the telescopic end of the elastic telescopic rod 9 contacts the fixed template 7 due to angular deviation, the telescopic end of the elastic telescopic rod 9 will automatically retract due to its own elastic characteristics, avoiding damage to the lower mold 8 and the fixed template 7 caused by hard collision. At the same time, this elastic buffer design can buy time for operators to adjust until the elastic telescopic rod 9 can accurately align with the docking hole and be smoothly inserted, ultimately improving the accuracy of the installation and positioning of the lower mold 8. Through the elastic buffer design of the elastic telescopic rod 9, positioning damage between the fixed template 7 and the lower mold 8 is avoided, ensuring that the lower mold 8 remains accurate during the die casting operation, thereby guaranteeing the forming accuracy of the copper-cast fire-fighting interface. When the mold 8 moves up and down driven by the fixed template 7, the fixed template 7 simultaneously drives the wheel frame 11 to move together. The wheel frame 11 further drives the roller 12 to roll smoothly along the inner wall of the rectangular frame 10. During this process, the wheel frame 11 is precisely constrained by the guide plate 13 to ensure that the wheel frame 11 always moves on the preset trajectory, thereby driving the fixed template 7 to not deviate from the displacement path. At the same time, the roller 12 always maintains stable contact with the inner wall of the rectangular frame 10, and reduces the resistance of the fixed template 7 during displacement by rolling smoothly, further improving the stability of the fixed template 7 during displacement. By enhancing the stability of the outer wall of the fixed template 7, it can maintain smooth operation during displacement and suppress the shaking of the fixed template 7 during the die casting process, ensuring the stability of the copper fire-fighting interface die casting operation.

[0023] Please see Figure 1- Figure 10 Based on the above embodiments, in another embodiment of the present invention, the top of the fixed plate 5 is provided with a stabilizing device for improving the stability of the fixed template 7, and the stabilizing device is provided with a limiting device for limiting the displacement distance; the stabilizing device includes a rectangular shell 21, a cylindrical rod 22, a contact plate 23, a rectangular plate 24 and a spring 25. The rectangular shell 21 is fixedly installed on the top of the fixed plate 5, the cylindrical rod 22 slides through the top of the rectangular shell 21, the contact plate 23 is fixedly installed on the top of the cylindrical rod 22, the rectangular plate 24 is fixedly installed on the bottom of the cylindrical rod 22, and a spring 25 is provided between the rectangular shell 21 and the rectangular plate 24. The outer wall of the rectangular plate 24 is in contact with the inner wall of the rectangular shell 21. By applying a stable auxiliary thrust to the fixed template 7 from four symmetrical points, it is possible to avoid uneven force on the fixed template 7 caused by single-point thrust and to reduce the driving burden of the lifting device 6.

[0024] The cylindrical rod 22 has a through hole on its circumferential surface. A vertical rod 26 is fixedly installed on the bottom of the inner wall of the rectangular shell 21. A blind hole is opened at the bottom of the cylindrical rod 22. The circumferential surface of the vertical rod 26 contacts the inner wall of the blind hole. The vertical rod 26 provides stable support for the cylindrical rod 22, ensuring that the cylindrical rod 22 drives the contact plate 23 to always be in contact with the bottom of the fixed template 7.

[0025] The limiting device includes a circular tube 31, a pin 32, a mounting plate 33, and an elastic ring 34. The circular tube 31 is set on the circumferential surface of the cylindrical rod 22. The pin 32 is fixedly inserted through the circumferential surface of the circular tube 31. The mounting plate 33 is fixedly installed at the bottom of the circular tube 31. The elastic ring 34 is fixedly installed at the bottom of the mounting plate 33. The pin 32 fits against the inner wall of the through hole. The elastic ring 34 contacts the top of the rectangular shell 21. By setting the elastic ring 34 between the mounting plate 33 and the rectangular shell 21, its elasticity is used to avoid impact damage and ensure that the fixed template 7 drives the lower mold 8 to descend smoothly.

[0026] A connecting plate 35 is fixedly installed on the circumferential surface of the circular tube 31. A lifting plate 36 is fixedly installed at the bottom of the connecting plate 35. A support frame 37 is slidably installed on the surface of the lifting plate 36. The support frame 37 is fixedly connected to the top of the fixed plate 5. Through the linkage of the connecting plate 35, the uniformity of the displacement of the cylindrical rod 22 is improved, and the force on the four corners of the bottom of the fixed template 7 is more even.

[0027] In this embodiment, during the disassembly stage, when the lifting device 6 drives the fixed template 7 to move upward, the pressure applied by the fixed template 7 to the contact plate 23 will gradually decrease with the displacement. At this time, the spring 25, which is in a compressed state, releases the stored elastic potential energy. Driven by the elastic potential energy, the spring 25 returns to its original position along the axis and pushes the rectangular plate 24 upward. Under the action of the thrust, the rectangular plate 24 drives the cylindrical rod 22 to move upward, and the cylindrical rod 22 further drives the contact plate 23 to move upward. During this process, the contact plate 23 always adheres to the bottom of the fixed template 7 and continuously applies an upward auxiliary thrust to the bottom of the fixed template 7. This auxiliary thrust can share the driving force required for the lifting device 6 to drive the fixed template 7 to move upward, thereby effectively reducing the operating burden of the lifting device 6. During the installation phase, when the lifting device 6 drives the fixed template 7 to move downward, the fixed template 7 applies downward pressure to the contact plate 23. Under the action of pressure, the fixed template 7 drives the contact plate 23 to move downward. The contact plate 23 drives the rectangular plate 24 to move downward together through the cylindrical rod 22. During the downward movement, the rectangular plate 24 applies continuous downward pressure to the spring 25, forcing the spring 25 to undergo elastic deformation along the axial direction and store elastic potential energy, so as to prepare energy reserves for pushing the rectangular plate 24 upward in the next disassembly phase. By applying a stable auxiliary thrust to the fixed template 7 from four symmetrical points, it is possible to avoid uneven force on the fixed template 7 caused by single-point thrust, and also to reduce the driving burden of the lifting device 6, ensuring that the entire displacement process remains smooth. During the displacement of the cylindrical rod 22, the circumferential surface of the vertical rod 26 always maintains a stable contact with the blind hole at the bottom of the cylindrical rod 22. At this time, the rectangular shell 21 provides a continuous and stable support force for the vertical rod 26. This support force is smoothly transmitted to the cylindrical rod 22 through the close contact between the vertical rod 26 and the blind hole, forming a longitudinal guide and radial limit for the cylindrical rod 22, so that the cylindrical rod 22 remains stable during the displacement, thereby ensuring the stability of the contact plate 23 and the fixed template 7. Through the stable support of the vertical rod 26 for the cylindrical rod 22, it is ensured that the cylindrical rod 22 drives the contact plate 23 to always be in contact with the bottom of the fixed template 7, so that the auxiliary thrust of the spring 25 can be evenly transmitted to the four corners of the fixed template 7. When the cylindrical rod 22 moves upward, it drives the pin 32 to move upward through its through hole. The pin 32 then drives the cylindrical tube 31 to move upward, and the cylindrical tube 31 drives the mounting plate 33 and the connecting plate 35 to move upward. During this process, the mounting plate 33 drives the elastic ring 34 to move upward, causing the elastic ring 34 to disengage from the rectangular shell 21. At the same time, the connecting plate 35 drives the lifting plate 36 to move upward smoothly along the inner wall of the support frame 37. Since the connecting plate 35 connects the four cylindrical tubes 31 as a whole, in the... Under the linkage of the connecting plate 35, the four round tubes 31 always remain on the same horizontal plane during the displacement process, preventing the displacement of a single round tube 31. The synchronous displacement of the four round tubes 31 is transmitted to the corresponding cylindrical rods 22 through the pin column 32, so that the four cylindrical rods 22 maintain a high degree of consistency in displacement. Through the linkage of the connecting plate 35, the consistency of the displacement of the cylindrical rods 22 is improved, and the force on the four corners of the bottom of the fixed template 7 is more uniform, thereby avoiding the fixed template 7 from tilting due to force imbalance and affecting the quality of die casting. When the cylindrical rod 22 moves downward, it drives the cylindrical tube 31 to move downward together through the pin 32. The cylindrical tube 31 then drives the mounting plate 33 and the connecting plate 35 to move downward together. The mounting plate 33 further drives the elastic ring 34 to move downward. During this process, the elastic ring 34 first contacts the top of the rectangular shell 21. Due to the elastic characteristics of the elastic ring 34 itself, it absorbs the impact force through deformation upon contact, avoiding direct contact between the mounting plate 33 and the rectangular shell 21 and causing collision damage. As the mounting plate 33 continues to move downward, the deformed elastic ring 34 applies an upward reverse elastic force to the mounting plate 33 until the mounting plate 33 stops moving downward with the cylindrical rod 22. By setting the elastic ring 34 between the mounting plate 33 and the rectangular shell 21, its elasticity is used to avoid impact damage, ensuring that the fixed template 7 drives the lower mold 8 to descend smoothly, thus providing a guarantee for the accurate installation of the lower mold 8.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A die-casting apparatus for producing copper-cast fire-fighting couplings, comprising a workbench (1), characterized in that, A support frame (2) is fixedly installed on the top of the workbench (1). A hydraulic drive device (3) is installed at the top height of the support frame (2). A moving template (4) is fixedly installed at the output end of the hydraulic drive device (3). The moving template (4) is used to install the upper mold. The workbench (1) also includes: A fixing plate (5) is fixedly installed on the inner wall of the workbench (1); A lifting device (6) is fixedly inserted through the bottom of a fixed plate (5); Fixed template (7), the fixed template (7) is fixedly installed on the output end of the lifting device (6), the lifting device (6) is used to drive the fixed template (7) to make vertical displacement, and the top of the fixed template (7) is provided with a docking hole; The lower mold (8) is in contact with the top of the fixed template (7), and the bottom of the lower mold (8) is provided with mounting holes; The elastic telescopic rod (9) is fixedly installed in the mounting hole of the lower mold (8), and the telescopic end of the elastic telescopic rod (9) contacts the inner wall of the docking hole. A rectangular frame (10) is fixedly installed on the top of a fixed plate (5). The inner wall of the rectangular frame (10) is polished to a smooth state. The inner wall of the rectangular frame (10) is in contact with the outer wall of the lower mold (8).

2. The die-casting device for producing copper-cast fire-fighting interfaces according to claim 1, characterized in that: The lower mold (8) is fixedly installed with lifting lugs on its outer side wall. The lifting lugs are used to cooperate with lifting equipment to provide a stable lifting support for the assembly and disassembly of the lower mold (8).

3. A die-casting device for producing copper-cast fire-fighting interfaces according to claim 2, characterized in that: A wheel frame (11) is fixedly installed on the outer wall of the fixed template (7). A roller (12) is rotatably installed on the inner wall of the wheel frame (11). The roller (12) contacts the inner wall of the rectangular frame (10). A guide plate (13) is fixedly installed on the inner wall of the rectangular frame (10). The guide plate (13) contacts the outer wall of the wheel frame (11). The guide plate (13) is used to constrain the movement trajectory of the roller (12).

4. A die-casting device for producing copper-cast fire-fighting couplings according to claim 3, characterized in that: A support plate (14) is fixedly installed on the inner wall of the rectangular frame (10). The support plate (14) is fixedly connected to the top of the guide plate (13). The support plate (14) is attached to the bottom of the lower mold (8). The top of the fixed plate (5) is provided with a stabilizing device for improving the stability of the fixed template (7), and the stabilizing device is provided with a limiting device for limiting the displacement distance.

5. A die-casting device for producing copper-cast fire-fighting interfaces according to claim 4, characterized in that: The stabilizing device includes a rectangular shell (21), a cylindrical rod (22), a contact plate (23), a rectangular plate (24), and a spring (25). The rectangular shell (21) is fixedly installed on the top of the fixed plate (5). The cylindrical rod (22) slides through the top of the rectangular shell (21). The contact plate (23) is fixedly installed on the top of the cylindrical rod (22). The rectangular plate (24) is fixedly installed on the bottom of the cylindrical rod (22). A spring (25) is provided between the rectangular shell (21) and the rectangular plate (24). The outer wall of the rectangular plate (24) is in contact with the inner wall of the rectangular shell (21).

6. A die-casting device for producing copper-cast fire-fighting couplings according to claim 5, characterized in that: The cylindrical rod (22) has a through hole on its circumferential surface. A vertical rod (26) is fixedly installed on the bottom of the inner wall of the rectangular shell (21). A blind hole is opened at the bottom of the cylindrical rod (22). The circumferential surface of the vertical rod (26) is in contact with the inner wall of the blind hole.

7. A die-casting device for producing copper-cast fire-fighting couplings according to claim 6, characterized in that: The limiting device includes a round tube (31), a pin (32), a mounting plate (33), and an elastic ring (34). The round tube (31) is disposed on the circumferential surface of the cylindrical rod (22). The pin (32) is fixedly inserted through the circumferential surface of the round tube (31). The mounting plate (33) is fixedly installed at the bottom of the round tube (31). The elastic ring (34) is fixedly installed at the bottom of the mounting plate (33). The pin (32) is in contact with the inner wall of the through hole. The elastic ring (34) is in contact with the top of the rectangular shell (21).

8. A die-casting device for producing copper-cast fire-fighting couplings according to claim 7, characterized in that: A connecting plate (35) is fixedly installed on the circumferential surface of the circular tube (31), and a lifting plate (36) is fixedly installed at the bottom of the connecting plate (35). A support frame (37) is slidably installed on the surface of the lifting plate (36), and the support frame (37) is fixedly connected to the top of the fixed plate (5).

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