An integrated micro-vibration heat dissipation mechanism's lost foam casting workbench

Abstract

The application relates to an integrated microseismic heat dissipation mechanism lost foam casting workbench, belonging to the lost foam casting technical field, which comprises a machine base, steel columns are fixedly installed at the four corners of the top of the machine base, and a workbench main body is arranged at the top of the machine base. The application has the beneficial effect that the water pump can deliver cooling liquid with a relatively low temperature into the multi-connection pipeline, the multi-connection pipeline can directly adhere to the high-temperature sand box for heat conduction, the cooling liquid after heat exchange enters the cooling box, the temperature sensor is used for monitoring the temperature of the cooling liquid in the cooling box in real time, when the monitoring temperature is higher than the preset value of the temperature sensor, the controller is triggered, the refrigerator in the cooling box is controlled by the controller to rapidly cool, and finally the water pump is used for circulating delivery, so that the active heat dissipation structure can rapidly cool the sand in a high temperature after the sand box is turned over, compared with traditional natural cooling, the production line can continuously run at a rhythm.

Description

Technical Field

[0001] This application relates to the field of lost foam casting technology, and in particular to a lost foam casting workbench with an integrated micro-vibration heat dissipation mechanism. Background Technology

[0002] Lost foam casting is a form of casting using a foam plastic mold with dry sand and vacuum technology without binders. Vibration molding is a commonly used molding method in lost foam casting, and its process includes the following steps: sand bed preparation -- placing the EPS model -- filling sand -- sealing and shaping. The principle of vibration molding in sand bed preparation is as follows: a sand box with a vacuum chamber is placed on a vibration table and clamped, and a certain thickness of bottom sand is placed at the bottom and vibrated to compact it.

[0003] A search revealed a Chinese patent disclosure for a convenient lost foam casting vibration table (authorization announcement number CN205341831U), comprising a base and a vibration table mounted on the base. Support frames are hinged around the perimeter of the vibration table, and return springs are installed on the support frames. A clamping hydraulic arm is vertically fixed to the top of the support frames, and a clamping base is provided at the end of the clamping hydraulic arm. Pressure blocks are provided on opposite sides of the support frames, and damping springs are installed between the pressure blocks and the support frames. Rubber pads are provided on the pressure surfaces of the pressure blocks. A pushing hydraulic cylinder is provided on the base, and a rolling wheel is hinged to the end of the pushing hydraulic cylinder, contacting the support frame. While this patented technology can solve the problems of excessive swaying of the sand box on the vibration table and incomplete filling of dry sand affecting the casting effect, it is not without its limitations.

[0004] However, the aforementioned device still has some drawbacks in actual use. The most obvious is that during actual production, the pouring of molten iron and the cooling of the castings cause the molding sand in the sand box to be intensely heated, with local temperatures reaching over 1000 degrees Celsius. Even after the box is turned over, some of the molding sand remains above 500 degrees Celsius. Since the molding sand needs to be recycled to reduce production costs, and the process explicitly requires that the temperature of the molding sand re-injected around the lost foam not exceed 50 degrees Celsius, excessively high sand temperatures will prevent the molding sand from meeting the recycling process standards. This not only easily leads to problems such as loose coatings, increasing the defect rate of castings, but also makes it difficult to adapt to the continuous operation rhythm of the production line due to the slow natural cooling rate of the molding sand. Utility Model Content

[0005] In view of the above-mentioned problems in the prior art, the main objective of this application is to provide a lost foam casting worktable with an integrated micro-vibration heat dissipation mechanism.

[0006] The technical solution of this application is as follows: a lost foam casting workbench with an integrated micro-vibration heat dissipation mechanism includes a base, steel columns are fixedly installed at the four corners of the top of the base, a workbench body is provided on the top of the base, a sand box is placed on the top of the workbench body, fixing components for fixing the sand box are provided on the top of the workbench body and on both sides of the sand box, heat dissipation components for dissipating heat from the molding sand are provided on the outer periphery of the sand box, and a micro-vibration component for vibrating the lost foam is provided at the bottom of the workbench body.

[0007] In a preferred embodiment, the heat dissipation assembly includes a multi-pipeline fixedly installed on the outer wall of the sand box, a cooling box fixedly installed on the top of the workbench body, a cover plate hinged to the top of the cooling box, a water pump fixedly installed on the top of the cover plate, the output end of the water pump being fixedly connected to one end of the multi-pipeline, and the other end of the multi-pipeline extending into the interior of the cooling box.

[0008] By adopting the above technical solution, after the coolant enters the cooling tank after heat exchange, the temperature of the coolant in the cooling tank is monitored in real time by a temperature sensor. When the monitored temperature is higher than the preset value of the temperature sensor, the controller will be triggered, and the controller will control the refrigerator in the cooling tank to cool down quickly, and finally the water pump will circulate and deliver the coolant.

[0009] In a preferred embodiment, the heat dissipation assembly further includes a cooler fixedly installed on the inner wall of the cooling box, a controller fixedly installed on the outer side of the cooling box, a temperature sensor fixedly installed on the inner wall of the cooling box, and the input end of the water pump extending into the interior of the cooling box.

[0010] By adopting the above technical solution, a coolant with a lower temperature can be delivered into the multi-pipeline through the water pump. The multi-pipeline can also directly contact the high-temperature sand box for heat conduction, enabling the active heat dissipation structure to quickly cool the molding sand that is at a high temperature after the box is turned over.

[0011] In a preferred embodiment, the fixing assembly includes support columns fixedly connected to the top of the workbench body and located on both sides of the sand box. Each support column is rotatably mounted with a clamping arm on its top. An electric push rod is fixedly mounted on the top of the sand box and on one side of the support column. The clamping arms abut against the inner wall of the sand box.

[0012] By adopting the above technical solution, the design clamps more firmly, which can effectively prevent the sand box from dislodging during molding sand filling, molten iron pouring and micro-vibration.

[0013] In a preferred embodiment, the fixing assembly further includes a mounting base fixedly connected to the electric push rod piston rod, a connecting rod rotatably connected to the outer periphery of the mounting base, and the end of the connecting rod away from the mounting base being rotatably connected to the clamping arm.

[0014] By adopting the above technical solution, the extension and retraction of the piston rod of the electric push rod can be used to drive the connecting rod through the mounting base, so that the clamping arm can rotate around the support column.

[0015] In a preferred embodiment, the micro-vibration assembly includes four mounting brackets disposed below the main body of the workbench. A vibration motor is fixedly connected to the bottom of each mounting bracket, and a pendulum is fixedly installed at the output shaft of each vibration motor. Mounting bolts are inserted into the interior of each mounting bracket, and the mounting bracket is connected to the main body of the workbench via mounting bolts.

[0016] By adopting the above technical solution, the air spring at the top of the steel column can buffer and regulate vibration, avoiding damage to the main body of the workbench and the overall structure of the machine base caused by severe vibration.

[0017] In a preferred embodiment, the micro-vibration assembly further includes an air spring fixedly installed on the top of the steel column, the top of the air spring being connected to the main body of the workbench, and two lifting lugs fixedly connected to both sides of the sand box.

[0018] By adopting the above technical solution and using the lifting lugs, the structure can be easily hoisted.

[0019] Compared with the prior art, the advantages and positive effects of this application are as follows: 1. In this application, a water pump is used to deliver coolant at a lower temperature into a multi-pipeline. The multi-pipeline allows for direct heat transfer to the high-temperature sand box, enabling the active cooling structure to rapidly cool the high-temperature molding sand after the box is turned over. Compared to traditional natural cooling, this method shortens the molding sand cooling cycle, allowing the molding sand to quickly meet the recycling standards and adapt to the continuous operation rhythm of the production line. After the coolant enters the cooling box, the temperature of the coolant in the cooling box is monitored in real time by a temperature sensor. When the monitored temperature is higher than the preset value of the temperature sensor, the controller is triggered, and the controller controls the refrigerator in the cooling box to cool rapidly, which is then circulated by the water pump.

[0020] 2. In this application, the extension and retraction of the piston rod of the electric push rod can drive the connecting rod through the mounting seat to make the clamping arm rotate around the support column and finally fit tightly against the inner wall of the sand box. Compared with the traditional clamping structure, this design clamps more firmly and can effectively prevent the sand box from dislodging during molding sand filling, molten iron pouring and micro-vibration. Attached Figure Description

[0021] Figure 1 This application provides an overall perspective view of a lost foam casting worktable with an integrated micro-vibration heat dissipation mechanism; Figure 2 A side view of a lost foam casting worktable with an integrated micro-vibration heat dissipation mechanism is provided in this application; Figure 3 This application provides a schematic diagram of a heat dissipation component for a lost foam casting worktable with an integrated micro-vibration heat dissipation mechanism; Figure 4 This application provides a schematic diagram of a micro-vibration component for a lost foam casting worktable with an integrated micro-vibration heat dissipation mechanism. Figure 5 This application provides a lost foam casting worktable with an integrated micro-vibration heat dissipation mechanism. Figure 1 Enlarged view of point A in the middle.

[0022] Legend: 1. Base; 2. Heat dissipation assembly; 21. Cooling box; 22. Temperature sensor; 23. Controller; 24. Refrigerator; 25. Water pump; 26. Multi-pipeline; 27. Cover plate; 3. Fixing assembly; 31. Support column; 32. Electric push rod; 33. Mounting base; 34. Connecting rod; 35. Clamping arm; 4. Workbench body; 5. Micro-vibration assembly; 51. Vibration motor; 52. Pendulum; 53. Mounting bracket; 54. Mounting bolt; 55. Air spring; 6. Steel column; 7. Sand box. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] Reference Figure 1-5 A lost foam casting workbench with an integrated micro-vibration heat dissipation mechanism includes a base 1, steel columns 6 fixedly installed at the four corners of the top of the base 1, a workbench body 4 on the top of the base 1, a sand box 7 placed on the top of the workbench body 4, fixing components 3 for fixing the sand box 7 on the top of the workbench body 4 and on both sides of the sand box 7, heat dissipation components 2 for dissipating heat from the molding sand on the outer periphery of the sand box 7, and a micro-vibration component 5 for vibrating the lost foam at the bottom of the workbench body 4.

[0025] Specifically, the heat dissipation component 2 includes a multi-pipeline 26 fixedly installed on the outer wall of the sand box 7. A cooling box 21 is fixedly installed on the top of the workbench body 4. A cover plate 27 is hinged to the top of the cooling box 21. A water pump 25 is fixedly installed on the top of the cover plate 27. Through the water pump 25, a coolant with a lower temperature can be delivered into the multi-pipeline 26. The multi-pipeline 26 can directly contact the high-temperature sand box 7 for heat conduction, enabling this active heat dissipation structure to quickly cool the molding sand that is at a high temperature after the box is turned over. Compared to traditional natural cooling, this method can shorten the molding sand cooling cycle, allowing the molding sand to quickly meet the recycling standards and adapt to the continuous operation rhythm of the production line. After the heat exchanged coolant enters the cooling tank 21, the temperature sensor 22 monitors the temperature of the coolant in the cooling tank 21 in real time. When the monitored temperature is higher than the preset value of the temperature sensor 22, the controller 23 is triggered, and the controller 23 controls the cooler 24 in the cooling tank 21 to quickly cool it. Finally, the water pump 25 circulates the coolant to improve the cooling efficiency of the molding sand. The output end of the water pump 25 is fixedly connected to one end of the multi-connected pipeline 26, and the other end of the multi-connected pipeline 26 extends into the interior of the cooling tank 21. The heat dissipation assembly 2 also includes a cooler 24 fixedly installed on the inner wall of the cooling tank 21. The controller 23 is fixedly installed on the outside of the cooling tank 21, and the temperature sensor 22 is fixedly installed on the inner wall of the cooling tank 21. The input end of the water pump 25 extends into the interior of the cooling tank 21. The fixing assembly 3 includes support columns 31 fixedly connected to the top of the workbench body 4 and located on both sides of the sand box 7. The top of each sand box 7 is rotatably mounted with a clamping arm 35. Through the extension and retraction of the piston rod of the electric push rod 32, the mounting base 33 drives the connecting rod 34 to perform transmission, so that the clamping arm 35 rotates around the support column 31 and finally abuts tightly against the inner wall of the sand box 7. Compared with the traditional clamping structure, this design clamps more firmly and can effectively prevent the sand box 7 from dislodging during molding sand filling, molten iron pouring and micro-vibration. The electric push rod 32 is fixedly installed on the top of the sand box 7 and on one side of the support column 31, and the clamping arm 35 abuts tightly against the inner wall of the sand box 7.

[0026] Specifically, the fixing component 3 also includes a mounting base 33 fixedly connected to the piston rod of the electric push rod 32. A connecting rod 34 is rotatably connected to the outer periphery of the mounting base 33. The end of the connecting rod 34 away from the mounting base 33 is rotatably connected to the clamping arm 35. The micro-vibration component 5 includes four mounting brackets 53 disposed below the worktable body 4. A vibration motor 51 is fixedly connected to the bottom of each mounting bracket 53. A pendulum 52 is fixedly mounted at the output shaft of each vibration motor 51. Mounting bolts 54 are inserted into the interior of each mounting bracket 53. The rotation of the output shaft of the vibration motor 51 can drive the pendulum 52 to rotate. The vibration is generated, and the air spring 55 at the top of the steel column 6 can buffer and adjust the vibration to avoid damage to the overall structure of the workbench body 4 and the base 1 caused by the violent vibration. The vibration frequency and amplitude can be controlled by adjusting the parameters of the vibration motor 51 according to the different casting process requirements. The mounting frame 53 is connected to the workbench body 4 by mounting bolts 54. The micro-vibration component 5 also includes an air spring 55 fixedly installed at the top of the steel column 6. The top of the air spring 55 is connected to the workbench body 4. Two lifting lugs are fixedly connected to both sides of the sand box 7 to facilitate the hoisting of the structure.

[0027] Working principle: First, the operator pours coolant into the cooling tank 21. Then, the sand box 7 is placed on the workbench body 4, and the electric push rod 32 is started. Through the extension and retraction of the piston rod of the electric push rod 32, the mounting base 33 drives the connecting rod 34 to transmit power, causing the clamping arm 35 to rotate around the support column 31, and finally to press tightly against the inner wall of the sand box 7. At the same time, the four vibration motors 51 are started. Through the rotation of the output shaft of the vibration motors 51, the pendulum 52 is driven to rotate and generate vibration. At the same time, the air spring 55 at the top of the steel column 6 can buffer and adjust the vibration, avoiding severe vibration from damaging the overall structure of the workbench body 4 and the machine base 1. The water pump 25 can deliver coolant at a lower temperature to the multi-pipeline 26. The multi-pipeline 26 can directly contact the high-temperature sand box 7 for heat conduction, so that the active heat dissipation structure can quickly cool the high-temperature molding sand after the box is turned over. After the heat exchanged coolant enters the cooling box 21, the temperature sensor 22 monitors the temperature of the coolant in the cooling box 21 in real time. When the monitored temperature is higher than the preset value of the temperature sensor 22, the controller 23 will be triggered, and the controller 23 will control the refrigerator 24 in the cooling box 21 to cool quickly. Finally, the water pump 25 will circulate and deliver the coolant until the cooling is completed.

[0028] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lost foam casting workbench with an integrated micro-vibration heat dissipation mechanism, comprising a base (1), characterized in that: Steel columns (6) are fixedly installed at the four corners of the top of the machine base (1). A workbench body (4) is provided on the top of the machine base (1). A sand box (7) is placed on the top of the workbench body (4). Fixing components (3) for fixing the sand box (7) are provided on the top of the workbench body (4) and on both sides of the sand box (7). A heat dissipation component (2) for dissipating heat from the molding sand is provided on the outer periphery of the sand box (7). A micro-vibration component (5) for vibrating the lost foam is provided at the bottom of the workbench body (4).

2. The lost foam casting workbench with an integrated micro-vibration heat dissipation mechanism according to claim 1, characterized in that: The heat dissipation assembly (2) includes a multi-pipeline (26) fixedly installed on the outer wall of the sand box (7). A cooling box (21) is fixedly installed on the top of the workbench body (4). A cover plate (27) is hinged to the top of the cooling box (21). A water pump (25) is fixedly installed on the top of the cover plate (27). The output end of the water pump (25) is fixedly connected to one end of the multi-pipeline (26). The other end of the multi-pipeline (26) extends into the interior of the cooling box (21).

3. The lost foam casting workbench with an integrated micro-vibration heat dissipation mechanism according to claim 2, characterized in that: The heat dissipation assembly (2) also includes a cooler (24) fixedly installed on the inner wall of the cooling box (21), a controller (23) fixedly installed on the outer side of the cooling box (21), a temperature sensor (22) fixedly installed on the inner wall of the cooling box (21), and the input end of the water pump (25) extends into the interior of the cooling box (21).

4. The lost foam casting workbench with an integrated micro-vibration heat dissipation mechanism according to claim 1, characterized in that: The fixing component (3) includes a support column (31) fixedly connected to the top of the workbench body (4) and located on both sides of the sand box (7). A clamping arm (35) is rotatably installed on the top of each support column (31). An electric push rod (32) is fixedly installed on the top of the sand box (7) and on one side of the support column (31). The clamping arm (35) abuts against the inner wall of the sand box (7).

5. A lost foam casting workbench with an integrated micro-vibration heat dissipation mechanism according to claim 4, characterized in that: The fixing assembly (3) also includes a mounting base (33) fixedly connected to the piston rod of the electric push rod (32). A connecting rod (34) is rotatably connected to the outer periphery of the mounting base (33). One end of the connecting rod (34) away from the mounting base (33) is rotatably connected to the clamping arm (35).

6. The lost foam casting workbench with an integrated micro-vibration heat dissipation mechanism according to claim 1, characterized in that: The micro-vibration assembly (5) includes four mounting brackets (53) located below the main body of the workbench (4). Each mounting bracket (53) has a vibration motor (51) fixedly connected to its bottom. Each vibration motor (51) has a pendulum (52) fixedly installed at its output shaft. Each mounting bracket (53) has a mounting bolt (54) inserted inside it. The mounting bracket (53) is connected to the main body of the workbench (4) by the mounting bolt (54).

7. A lost foam casting workbench with an integrated micro-vibration heat dissipation mechanism according to claim 6, characterized in that: The micro-vibration assembly (5) also includes an air spring (55) fixedly installed on the top of the steel column (6). The top of the air spring (55) is connected to the main body of the workbench (4). Two lifting lugs are fixedly connected to both sides of the sand box (7).

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