Quick-cooling semi-solid die-casting slurry mechanical stirring device

Abstract

The utility model discloses a quick-cooling semi-solid die-casting slurry mechanical stirring device which comprises a stirring tank, the lower surface of the stirring tank is fixedly connected with an output pipe, the outer surface of the stirring tank is fixedly connected with two supporting plates, and the upper surfaces of the two supporting plates are fixedly connected with a liquid nitrogen storage box. The side wall of the liquid nitrogen storage box is fixedly connected with a leading-in pipe, the lower surface of the leading-in pipe is connected with a leading-out pipe, the interior of the leading-out pipe is fixedly connected with a liquid nitrogen electromagnetic valve, the end, away from the liquid nitrogen storage box, of the leading-out pipe is fixedly connected with a first communicating block, and the first communicating block is fixedly connected with the outer surface of an output pipe; the side wall of the first communicating block is fixedly connected with six out-pipe refrigerating pipes and six in-pipe refrigerating pipes. The output pipe and the slurry inside the output pipe are cooled through the outside-pipe refrigeration pipe and the inside-pipe refrigeration pipe, the liquid nitrogen has extremely low temperature, heat of the slurry can be rapidly taken away, efficient and rapid cooling is achieved, and the temperature of the slurry can be accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of mechanical stirring technology, specifically to a mechanical stirring device for rapidly cooling semi-solid die-casting slurry. Background Technology

[0002] In the field of modern die casting technology, semi-solid die casting technology is gradually becoming one of the key technologies for improving product quality and performance. With the increasing demand for high-performance and high-precision metal parts, traditional die casting technology can no longer meet the requirements in some aspects. Semi-solid die casting slurry has unique advantages over traditional liquid die casting metal. It contains a certain proportion of solid particles, which can effectively reduce defects such as porosity and shrinkage cavities during the die casting process, and improve the density and mechanical properties of the product.

[0003] In practical applications, the lack of a cooling system for the mechanical mixing device of the rapid cooling semi-solid die casting slurry can lead to uneven temperature distribution during the mixing process. Some areas may become overheated, while other areas may become undercooled, affecting the overall performance of the slurry. Utility Model Content

[0004] The purpose of this invention is to provide a mechanical stirring device for rapidly cooling semi-solid die-casting slurry. The device uses external and internal cooling pipes to cool the output pipe and the internal slurry. Liquid nitrogen, with its extremely low temperature, can quickly remove heat from the slurry, achieving efficient and rapid cooling. This helps to precisely control the slurry temperature, allowing it to quickly reach the required semi-solid temperature range to meet specific die-casting process requirements. Waste liquid generated during the cooling process can flow into a waste liquid storage tank through a waste liquid inlet pipe. A one-way valve effectively prevents backflow of waste liquid, ensuring the normal operation and cleanliness of the cooling system.

[0005] To achieve the above objectives, a mechanical mixing device for rapid cooling semi-solid die-casting slurry is provided, comprising: a mixing tank; an output pipe fixedly connected to the lower surface of the mixing tank; two support plates fixedly connected to the outer surface of the mixing tank; a liquid nitrogen storage tank fixedly connected to the upper surface of the two support plates; an inlet pipe fixedly connected to the side wall of the liquid nitrogen storage tank; an outlet pipe connected to the lower surface of the inlet pipe; a liquid nitrogen solenoid valve fixedly connected inside the outlet pipe; a first connecting block fixedly connected to the end of the outlet pipe away from the liquid nitrogen storage tank, and the first connecting block and the outer surface of the output pipe fixedly connected; six external cooling pipes and six internal cooling pipes fixedly connected to the side wall of the first connecting block; a second connecting block fixedly connected to the end of each of the six internal cooling pipes away from the first connecting block; a waste liquid inlet pipe fixedly connected to the outer surface of the second connecting block; a one-way valve fixedly connected inside the waste liquid inlet pipe; a waste liquid storage tank fixedly connected to one end of the waste liquid inlet pipe; a waste liquid outlet pipe fixedly connected to the outer surface of the waste liquid storage tank; and a waste liquid solenoid valve fixedly connected inside the waste liquid outlet pipe. This design improves cooling efficiency and environmental performance through liquid nitrogen cooling and a waste liquid recovery system.

[0006] According to the aforementioned mechanical mixing device for rapid cooling semi-solid die-casting slurry, an input pipe is fixedly connected to the upper surface of the mixing tank, and an input solenoid valve is fixedly connected inside the input pipe. An outlet pipe is provided on the side of the upper surface of the mixing tank away from the output pipe. This structure facilitates the input of slurry and the discharge of gas, improving mixing efficiency and ease of operation.

[0007] According to the aforementioned mechanical mixing device for rapid cooling semi-solid die-casting slurry, a motor is installed between the input pipe and the outlet pipe, and a rotating column is fixedly connected to the output end of the motor, with the rotating column located inside the mixing tank. The use of a motor makes the mixing process more automated and efficient.

[0008] According to the aforementioned mechanical mixing device for rapid cooling semi-solid die-casting slurry, six fixed columns are fixedly connected to the outer surface of the rotating column, and guide plates are fixedly connected to the outer surface of each of the six fixed columns. The design of the guide plates helps to stabilize the operation of the mixing blades and improves the mixing effect.

[0009] According to the aforementioned mechanical mixing device for rapid cooling semi-solid die-casting slurry, a guide column is provided below the guide plate, and a rotating column is fixedly connected inside the guide column. Six guide grooves are formed inside the guide column. The design of the guide grooves facilitates the smooth movement of the mixing blades, further improving the mixing efficiency.

[0010] According to the aforementioned mechanical mixing device for rapid cooling semi-solid die-casting slurry, six mixing blades are arranged between the guide columns and guide plates, and all six mixing blades are fixedly connected to the rotating column. The design of the mixing blades allows the slurry to be fully mixed, improving the mixing quality.

[0011] According to the aforementioned mechanical mixing device for rapid cooling semi-solid die-casting slurry, a discharge solenoid valve is fixedly connected inside the output pipe, and four support legs are fixedly connected to the lower surface of the mixing tank. The application of the discharge solenoid valve makes the discharge process more precise and controllable, and the design of the support legs enhances the stability of the device.

[0012] According to the aforementioned rapid cooling semi-solid die-casting slurry mechanical mixing device, the output pipe is connected to the interior of the mixing tank, and six internal cooling pipes and six external cooling pipes are correspondingly arranged. This design makes the cooling effect more uniform and improves the overall cooling efficiency.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model includes a support plate, a liquid nitrogen storage tank, an inlet pipe, an outlet pipe, a first connecting block, an external cooling pipe, an internal cooling pipe, a second connecting block, a waste liquid inlet pipe, a one-way valve, a waste liquid storage tank, a waste liquid outlet pipe, and a waste liquid solenoid valve. The outlet pipe and the internal slurry are cooled via the external and internal cooling pipes. Liquid nitrogen, with its extremely low temperature, rapidly removes heat from the slurry, achieving efficient and rapid cooling. This helps to precisely control the slurry temperature, quickly bringing it to the required semi-solid temperature range to meet specific die-casting process requirements. Waste liquid generated during the cooling process flows into the waste liquid storage tank through the waste liquid inlet pipe, and the one-way valve effectively prevents backflow, ensuring the normal operation and cleanliness of the cooling system.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a perspective view of a mechanical mixing device for rapid cooling semi-solid die casting slurry according to the present invention;

[0018] Figure 2 This is a front view of a mechanical mixing device for rapid cooling semi-solid die casting slurry according to the present invention;

[0019] Figure 3 This is a cross-sectional perspective view of a mechanical mixing device for rapid cooling semi-solid die casting slurry according to the present invention;

[0020] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0021] In the diagram: 1. Mixing tank; 2. Output pipe; 3. Discharge solenoid valve; 4. Support leg; 5. Input pipe; 6. Input solenoid valve; 7. Motor; 8. Gas outlet pipe; 9. Rotating column; 10. Fixed column; 11. Guide plate; 12. Mixing fan blade; 13. Guide column; 14. Guide chute; 15. Support plate; 16. Liquid nitrogen storage tank; 17. Inlet pipe; 18. Liquid nitrogen solenoid valve; 19. Outlet pipe; 20. Waste liquid storage tank; 21. Waste liquid solenoid valve; 22. Waste liquid outlet pipe; 23. Waste liquid inlet pipe; 24. Check valve; 25. First connecting block; 26. External refrigeration pipe; 27. Internal refrigeration pipe; 28. Second connecting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4This utility model provides a technical solution: a mechanical stirring device for rapid cooling semi-solid die-casting slurry, comprising: a stirring tank 1, an output pipe 2 fixedly connected to the lower surface of the stirring tank 1 for discharging the treated slurry from the stirring tank 1, two support plates 15 fixedly connected to the outer surface of the stirring tank 1 for supporting a liquid nitrogen storage tank 16, a liquid nitrogen storage tank 16 fixedly connected to the upper surface of the two support plates 15 for storing liquid nitrogen, and an inlet pipe 17 fixedly connected to the side wall of the liquid nitrogen storage tank 16 for discharging external liquid nitrogen. A liquid nitrogen source is introduced into a liquid nitrogen storage tank 16. An outlet pipe 19 is connected to the lower surface of the inlet pipe 17. The outlet pipe 19 is used to export the liquid nitrogen from the liquid nitrogen storage tank 16. A liquid nitrogen solenoid valve 18 is fixedly connected inside the outlet pipe 19, controlling the flow of liquid nitrogen within the outlet pipe 19. A first connecting block 25 is fixedly connected to the end of the outlet pipe 19 furthest from the liquid nitrogen storage tank 16, and the first connecting block 25 is fixedly connected to the outer surface of the outlet pipe 2. The first connecting block 25 connects the outlet pipe 19 to the external cooling pipe 26 and the internal cooling pipe 27, enabling the liquid nitrogen to... The output pipe 2 is refrigerated. Six external refrigeration pipes 26 and six internal refrigeration pipes 27 are fixedly connected to the side wall of the first connecting block 25. The external refrigeration pipes 26 and the internal refrigeration pipes 27 can cool the output pipe 2 and the internal slurry. The end of each of the six internal refrigeration pipes 27 away from the first connecting block 25 is fixedly connected to a second connecting block 28. The second connecting block 28 connects the internal refrigeration pipes 27 to the waste liquid inlet pipe 23. The waste liquid inlet pipe 23 is fixedly connected to the outer surface of the second connecting block 28. The waste liquid inlet pipe 23 is used to guide the waste liquid generated during the refrigeration process. Waste liquid storage tank 20, waste liquid inlet pipe 23 is internally fixedly connected to one-way valve 24, one-way valve 24 controls waste liquid to flow into waste liquid storage tank 20 in one direction only, one end of waste liquid inlet pipe 23 is fixedly connected to waste liquid storage tank 20, waste liquid storage tank 20 is used to store waste liquid generated by refrigeration, waste liquid outlet pipe 22 is fixedly connected to the outer surface of waste liquid storage tank 20, waste liquid outlet pipe 22 is used to export waste liquid in waste liquid storage tank 20, waste liquid outlet pipe 22 is internally fixedly connected to waste liquid solenoid valve 21, waste liquid solenoid valve 21 controls the opening and closing of waste liquid in waste liquid outlet pipe 22.

[0024] An input pipe 5 is fixedly connected to the upper surface of the mixing tank 1. The input pipe 5 is used to input materials into the mixing tank 1. An input solenoid valve 6 is fixedly connected inside the input pipe 5. The input solenoid valve 6 controls the flow of materials in the input pipe 5. An exhaust pipe 8 is provided on the side of the upper surface of the mixing tank 1 away from the output pipe 2. The exhaust pipe 8 is used to discharge gas from the mixing tank 1. A motor 7 is provided between the input pipe 5 and the exhaust pipe 8. The motor 7 provides power for mixing. A rotating column 9 is fixedly connected to the output end of the motor 7. The rotating column 9 is located inside the mixing tank 1. The rotating column 9 drives the mixing fan blades 12 and other components to rotate for mixing. Six fixed columns 10 are fixedly connected to the outer surface of the rotating column 9. The fixed columns 10 are used to connect the rotating column 9 to the guide plate 11. Guide plates 11 are fixedly connected to the outer surface of each of the six fixed columns 10. The guide plates 11 can guide the materials during the mixing process. Guide columns are provided below the guide plates 11. 13, and a rotating column 9 is fixedly connected inside the guide column 13. The guide column 13 provides guidance for the movement of the stirring blades 12. Six guide grooves 14 are opened inside the guide column 13. The guide grooves 14 enable the stirring blades 12 to move up and down when the rotating column 9 rotates. Six stirring blades 12 are arranged between the guide plates 11 of the guide column 13, and all six stirring blades 12 are fixedly connected to the rotating column 9. The stirring blades 12 stir and mix the materials. A discharge solenoid valve 3 is fixedly connected inside the output pipe 2. The discharge solenoid valve 3 controls the flow of slurry in the output pipe 2. Four support legs 4 are fixedly connected to the lower surface of the mixing tank 1. The support legs 4 are used to support the mixing tank 1. The output pipe 2 is connected to the interior of the mixing tank 1, so that the slurry in the mixing tank 1 can be discharged through the output pipe 2. Six internal cooling pipes 27 and six external cooling pipes 26 are correspondingly arranged to enhance the cooling effect on the output pipe 2 and the internal slurry.

[0025] Working Principle: The material to be mixed is placed above the mixing tank 1 through the input pipe 5. The input solenoid valve 6 is opened, and the material falls into the mixing tank 1 under gravity. After input is complete, the input solenoid valve 6 is closed, and the motor 7 is started. The motor 7 drives the rotating column 9 to rotate, which in turn drives the fixed column 10 and the connected guide plate 11 to rotate synchronously. At the same time, the rotating column 9 drives the mixing blades 12 to rotate. Under the action of the guide column 13 and its internal guide groove 14, the mixing blades 12 also generate up-and-down reciprocating motion while rotating, thereby mixing the material in the mixing tank 1 from all directions and multiple angles, so that the material forms a semi-solid die-casting slurry. When the mixing reaches a certain degree or reaches the set... After a set time, the liquid nitrogen solenoid valve 18 is opened, and liquid nitrogen flows from the liquid nitrogen storage tank 16 through the outlet pipe 19 and the first connecting block 25 into the external cooling pipe 26 and the internal cooling pipe 27. The external cooling pipe 26 cools the outside of the output pipe 2, and the internal cooling pipe 27 cools the inside of the output pipe 2 and the slurry flowing through it to obtain the required semi-solid slurry temperature characteristics. During this process, the waste liquid generated by refrigeration flows into the waste liquid storage tank 20 through the waste liquid inlet pipe 23 (one-way valve 24 prevents waste liquid backflow). When the cooling and stirring meet the process requirements, the discharge solenoid valve 3 is opened, and the semi-solid die casting slurry in the stirring tank 1 flows out through the output pipe 2 under the action of gravity or other pressure, for use in the subsequent die casting process.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A mechanical mixing device for rapid cooling semi-solid die casting slurry, comprising: A mixing tank (1) is provided, wherein an output pipe (2) is fixedly connected to the lower surface of the mixing tank (1). The mixing tank (1) is characterized by having two support plates (15) fixedly connected to its outer surface, a liquid nitrogen storage tank (16) fixedly connected to the upper surface of the two support plates (15), an inlet pipe (17) fixedly connected to the side wall of the liquid nitrogen storage tank (16), an outlet pipe (19) connected to the lower surface of the inlet pipe (17), a liquid nitrogen solenoid valve (18) fixedly connected inside the outlet pipe (19), and a first connecting block (25) fixedly connected to the end of the outlet pipe (19) away from the liquid nitrogen storage tank (16), and the first connecting block (25) and the outer surface of the output pipe (2) are fixedly connected. Next, six external refrigeration pipes (26) and six internal refrigeration pipes (27) are fixedly connected to the side wall of the first connecting block (25). The end of each of the six internal refrigeration pipes (27) away from the first connecting block (25) is fixedly connected to a second connecting block (28). The outer surface of the second connecting block (28) is fixedly connected to a waste liquid inlet pipe (23). The inside of the waste liquid inlet pipe (23) is fixedly connected to a one-way valve (24). One end of the waste liquid inlet pipe (23) is fixedly connected to a waste liquid storage tank (20). The outer surface of the waste liquid storage tank (20) is fixedly connected to a waste liquid outlet pipe (22). The inside of the waste liquid outlet pipe (22) is fixedly connected to a waste liquid solenoid valve (21).

2. The mechanical mixing device for rapid cooling semi-solid die casting slurry as described in claim 1, characterized in that: An input pipe (5) is fixedly connected to the upper surface of the mixing tank (1), and an input solenoid valve (6) is fixedly connected inside the input pipe (5). An air outlet pipe (8) is provided on the side of the upper surface of the mixing tank (1) away from the output pipe (2).

3. The mechanical mixing device for rapid cooling semi-solid die casting slurry as described in claim 2, characterized in that: A motor (7) is provided between the input pipe (5) and the outlet pipe (8). The output end of the motor (7) is fixedly connected to a rotating column (9), and the rotating column (9) is located inside the mixing tank (1).

4. The mechanical mixing device for rapid cooling semi-solid die casting slurry as described in claim 3, characterized in that: The outer surface of the rotating column (9) is fixedly connected to six fixed columns (10), and the outer surface of each of the six fixed columns (10) is fixedly connected to a guide plate (11).

5. The mechanical mixing device for rapid cooling semi-solid die casting slurry as described in claim 4, characterized in that: A guide post (13) is provided below the guide plate (11), and a rotating post (9) is fixedly connected inside the guide post (13). Six guide grooves (14) are opened inside the guide post (13).

6. The mechanical mixing device for rapid cooling semi-solid die casting slurry as described in claim 5, characterized in that: Six stirring blades (12) are provided between the guide column (13) and the guide plate (11), and all six stirring blades (12) are fixedly connected to the rotating column (9).

7. The mechanical mixing device for rapid cooling semi-solid die casting slurry as described in claim 1, characterized in that: The output pipe (2) is fixedly connected to a discharge solenoid valve (3), and the lower surface of the mixing tank (1) is fixedly connected to four support legs (4).

8. The mechanical mixing device for rapid cooling semi-solid die casting slurry as described in claim 1, characterized in that: The output pipe (2) is internally connected to the stirring tank (1), and six internal cooling pipes (27) and six external cooling pipes (26) are correspondingly arranged.

Images