Blowing device for a core-making machine

Abstract

This application discloses an air blowing device for a core-making machine, relating to the technical field of air blowing in core-making machines. The air blowing device for a core-making machine includes a reciprocating drive mechanism connected to a sliding frame. An air blowing plate is connected to the sliding frame. The air blowing plate includes an internal air chamber and an air inlet and an air outlet communicating with the air chamber. An air blowing nozzle communicating with the air chamber is also installed on the air blowing plate. This application facilitates the removal of hot air from the core box.

Description

Technical Field

[0001] This application relates to the field of air blowing in a core-making machine, and more particularly to an air blowing device for a core-making machine. Background Technology

[0002] In the foundry industry, sand cores are crucial tooling for forming the internal cavities, channels, and complex structures of castings. Their quality directly determines whether problems such as internal cavity misalignment and surface defects occur in the casting. Therefore, the stability and efficiency of the sand core forming process have always been a core concern in the industry. With the development of casting technology towards lightweighting and precision, resin sand, due to its characteristics such as good fluidity, high strength after curing, and excellent collapsibility, has become the mainstream molding sand material for the production of sand cores for complex castings such as automobile cylinder blocks and engine cylinder heads.

[0003] In the resin sand core-making process, the core-making machine first fills the core box cavity with resin sand at a preset pressure. Then, through related processes, the binder in the resin sand undergoes a cross-linking reaction, thereby solidifying the loose molding sand particles into a sand core with a specific shape and strength. Because the resin sand releases heat during the solidification process and generates heat through friction during its flow, heat accumulates inside the core box, forming hot air. To prevent this hot air accumulation from affecting the quality of the sand core, the core box needs to be opened to allow natural air to enter and remove the hot air.

[0004] Regarding the aforementioned technologies, the inventors believe that they have the following drawbacks: natural air cooling depends on the external environment and lacks controllability. When the external ambient temperature is too high, the heat absorption capacity and convection speed of the airflow will be significantly reduced, resulting in poor cooling efficiency. Utility Model Content

[0005] To facilitate the removal of hot air from the core box, this application provides an air blowing device for a core-making machine.

[0006] The air blowing device for a core-making machine provided in this application adopts the following technical solution: An air blowing device for a core-making machine includes a reciprocating drive mechanism connected to a sliding frame. An air blowing plate is connected to the sliding frame. The air blowing plate includes an internal air chamber and an air inlet and an air outlet communicating with the air chamber. An air blowing nozzle communicating with the air chamber is also installed on the air blowing plate.

[0007] By adopting the above technical solution, the reciprocating drive mechanism drives the air blowing plate to the top of the core box. By injecting gas into the air inlet, the gas will flow through the air chamber to the air blowing nozzle. By inserting the air blowing nozzle into the core box, the air blowing of the core box can be completed to drive the hot air in the core box to be discharged. The overflowing gas can flow out from the air outlet.

[0008] In one specific implementation, the reciprocating drive mechanism includes a mounting frame, on which a rotating component is mounted, a rotating arm is connected to the rotating component, and a rotating wheel is connected to the rotating arm; a sliding frame is slidably connected to the mounting frame, the sliding frame has a sliding guide groove, the rotating wheel is slidably connected to the sliding guide groove, and the rotating component is used to drive the rotating wheel to slide within the sliding guide groove via the rotating arm, thereby allowing the sliding frame to slide.

[0009] By adopting the above technical solution, the drive belt can drive the belt wheel to slide in the sliding guide groove through the belt rotating arm, and at this time the sliding frame will slide on the mounting frame.

[0010] In one specific implementation, the mounting bracket is provided with a guide rail, and the sliding bracket is rotatably connected with a guide wheel, which is slidably disposed on the guide rail.

[0011] By adopting the above technical solution, the cooperation between the guide wheel and the guide rail can guide the movement of the sliding frame.

[0012] In one specific implementation scheme, the mounting bracket is further provided with a limiting block, which is located on one side of the guide rail and is used to limit the movement stroke of the sliding bracket.

[0013] By adopting the above technical solution, it is possible to prevent the sliding frame from moving out of position.

[0014] In one specific implementation scheme, the air blowing plate is further provided with a pressing drive component, the pressing drive component is connected to a connecting column, the connecting column is connected to a mounting plate, and the mounting plate is connected to a pressing component for pressing the resin sand in the core box.

[0015] By adopting the above technical solution, the pressure drive component can be driven to move the mounting plate, thereby moving the pressure component to press the resin sand in the core box to compact the resin sand.

[0016] In one specific implementation, the mounting plate is connected to a guide post, the air blowing plate is provided with a guide tube, and the guide post is slidably connected to the guide tube.

[0017] By adopting the above technical solution, the movement of the mounting plate can be guided.

[0018] In one specific implementation, the end of the air-blowing plate away from the nozzle is provided with a cooling plate, the cooling plate including an internal cooling channel and an inlet pipe and an outlet pipe connected to the cooling channel.

[0019] By adopting the above technical solution, after the air nozzle is inserted into the core box, the heat inside the core box may be conducted to the air blowing plate through the air nozzle and then to the cooling plate. The cooling plate can be cooled by passing coolant into the inlet pipe and allowing the coolant to be discharged from the outlet pipe through the cooling channel.

[0020] In one specific implementation scheme, the cooling plate has a first docking hole, the air blowing plate has a second docking hole, and the first docking hole and the second docking hole are detachably connected to a fastener.

[0021] By adopting the above technical solution, the cooling plate can be disassembled.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The reciprocating drive mechanism drives the air blowing plate to the top of the core box. By injecting gas into the air inlet, the gas will flow through the air chamber to the air blowing nozzle. By inserting the air blowing nozzle into the core box, the air blowing of the core box can be completed to drive the hot air in the core box to be discharged. The overflowing gas can flow out from the air outlet. 2. The drive belt can drive the belt wheel to slide in the sliding guide groove through the belt rotating arm. At this time, the sliding frame will slide on the mounting frame, and the limiting block can prevent the sliding frame from moving too far. 3. After the air nozzle is inserted into the core box, the heat inside the core box may be conducted to the air blowing plate through the air nozzle and then to the cooling plate. Cooling the cooling plate can be facilitated by passing coolant into the inlet pipe and allowing the coolant to be discharged from the outlet pipe through the cooling channel. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the air blowing device of a core-making machine according to an embodiment of this application.

[0024] Figure 2 This is a structural diagram used to illustrate a reciprocating drive mechanism.

[0025] Figure 3 This is a structural diagram used to illustrate the guide wheel.

[0026] Figure 4 It is a structural diagram used to illustrate the air inlet and air outlet.

[0027] Figure 5 It is a sectional view used to show the connecting columns.

[0028] Figure 6 This is a cross-sectional view used to show the cooling plate.

[0029] Explanation of reference numerals in the attached drawings: 1. Reciprocating drive mechanism; 11. Mounting bracket; 12. Belt with rotating component; 13. Belt with rotating arm; 14. Belt with rotating wheel; 15. Guide rail; 16. Guide wheel; 17. Limiting block; 2. Sliding frame; 21. Sliding guide groove; 3. Air blowing plate; 31. Air inlet; 32. Air outlet; 33. Material pressing drive component; 34. Connecting column; 35. Mounting plate; 351. Guide column; 36. Material pressing component; 37. Guide tube; 4. Air blowing nozzle; 5. Cooling plate; 51. Cooling channel; 52. Liquid inlet pipe; 53. Liquid outlet pipe; 54. Docking hole one. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses an air blowing device for a core-making machine. It is used to blow air into the core box to remove hot air from inside the core box.

[0032] Reference Figure 1 A blowing device for a core-making machine includes a reciprocating drive mechanism 1, which is connected to a sliding frame 2. The reciprocating drive mechanism 1 can drive a sliding component to move and adjust to reach above the core box. A blowing plate 3 is connected to the sliding frame 2. The blowing plate 3 includes an internal air chamber and an air inlet 31 and an air outlet 32 ​​communicating with the air chamber. Both the air inlet 31 and the air outlet 32 ​​are used to connect with the blowing machine. A blowing nozzle 4 communicating with the air chamber is also installed at the lower end of the blowing plate 3. Multiple blowing nozzles 4 are provided. The blowing nozzles 4 can be inserted into the core box. The structure of the blowing nozzle 4 is prior art and will not be described in detail here.

[0033] The reciprocating drive mechanism 1 drives the air blowing plate 3 to the top of the core box. By injecting gas, such as compressed air, into the air inlet 31, the gas will flow through the air chamber to the air blowing nozzle 4. By inserting the air blowing nozzle 4 into the core box, the air blowing of the core box can be completed to drive the hot air in the core box to be discharged. Excessive injection of overflowing gas can flow out from the air outlet 32.

[0034] Reference Figure 1 and Figure 2 The reciprocating drive mechanism 1 includes a mounting frame 11, on which a rotating component 12 is mounted. The rotating component 12 is a swing cylinder. The rotating component 12 is connected to a rotating arm 13, and a rotating wheel 14 is rotatably connected to the rotating arm 13. The sliding frame 2 is slidably connected to the mounting frame 11. The sliding frame 2 has a sliding guide groove 21. The rotating wheel 14 is slidably connected to the sliding guide groove 21. The rotating component 12 is used to drive the rotating wheel 14 to slide in the sliding guide groove 21 through the rotating arm 13, thereby allowing the sliding frame 2 to slide.

[0035] Reference Figure 3Specifically, to guide the movement of the sliding frame 2, the mounting frame 11 is provided with a guide rail 15, and a guide wheel 16 is rotatably connected to the sliding frame 2. The guide wheel 16 is slidably disposed on the upper end of the guide rail 15, and the guide rail 15 also serves to support the guide wheel 16. To prevent the sliding frame 2 from sliding out of position, the mounting frame 11 is also provided with a limiting block 17, which is disposed on the right side of the guide rail 15. The limiting block 17 is used to limit the movement stroke of the sliding frame 2.

[0036] The drive belt 12 can rotate via the belt rotating arm 13, thereby driving the belt rotating wheel 14 to slide in the sliding guide groove 21. At this time, the sliding frame 2 will slide along the guide rail 15 in the direction set on the mounting frame 11.

[0037] Reference Figure 4 and Figure 5 To prevent the air blowing from affecting the resin sand molding, the resin sand inside the core box needs to be pressed. The air blowing plate 3 is also equipped with a pressing drive 33, which is a hydraulic cylinder. The pressing drive 33 is connected to a connecting column 34, which is connected to a mounting plate 35. The mounting plate 35 is connected to a pressing component 36 for pressing the resin sand inside the core box, which is a pressing plate.

[0038] Reference Figure 4 and Figure 5 In order to guide the movement of the mounting plate 35 and thus the movement of the pressure member 36, the mounting plate 35 is connected to a guide post 351, and the air blowing plate 3 is provided with a guide tube 37, and the guide post 351 is slidably connected to the guide tube 37.

[0039] Reference Figure 5 and Figure 6 After the air nozzle 4 is inserted into the core box, the heat inside the core box may be conducted to the air blowing plate 3 through the air nozzle 4 and accumulate there. A cooling plate 5 is provided at the end of the air blowing plate 3 away from the air nozzle. The cooling plate 5 includes an internal cooling channel 51 and an inlet pipe 52 and an outlet pipe 53 connected to the cooling channel 51. To improve cooling capacity, the cooling channel 51 is serpentine in shape.

[0040] The heat on the air blowing plate 3 will be conducted to the cooling plate 5. By introducing coolant into the inlet pipe 52 and allowing the coolant to be discharged from the outlet pipe 53 through the cooling channel 51, the cooling plate 5 can be cooled, thereby indirectly cooling the air blowing plate 3.

[0041] Reference Figure 5 and Figure 6 The cooling plate 5 has a first docking hole 54, and the air blowing plate 3 has a second docking hole. Both the first docking hole 54 and the second docking hole are detachably connected to a fastener, such as a screw. The cooling plate 5 can be disassembled for replacement or cleaning.

[0042] The implementation principle of the air blowing device for a core-making machine according to an embodiment of this application is as follows: The drive belt 12 can rotate via the belt arm 13, thereby driving the belt wheel 14 to slide in the sliding guide groove 21, and then driving the sliding frame 2 to slide above the core box. The core box is moved so that the air nozzle 4 is inserted into the core box. By injecting gas, such as compressed air, into the air inlet 31, the gas will flow through the air chamber to the air nozzle 4. By inserting the air nozzle 4 into the core box, the air blowing on the core box can be completed, thereby driving the hot air in the core box to be discharged.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A blowing device for a core-making machine, characterized in that: It includes a reciprocating drive mechanism (1), which is connected to a sliding frame (2). An air blowing plate (3) is connected to the sliding frame (2). The air blowing plate (3) includes an internal air chamber and an air inlet (31) and an air outlet (32) connected to the air chamber. An air blowing nozzle (4) connected to the air chamber is also installed on the air blowing plate (3).

2. The air blowing device for a core-making machine according to claim 1, characterized in that: The reciprocating drive mechanism (1) includes a mounting frame (11), on which a rotating component (12) is mounted. The rotating component (12) is connected to a rotating arm (13), and a rotating wheel (14) is connected to the rotating arm (13). The sliding frame (2) is slidably connected to the mounting frame (11). The sliding frame (2) has a sliding guide groove (21). The rotating wheel (14) is slidably connected to the sliding guide groove (21). The rotating component (12) is used to drive the rotating wheel (14) to slide in the sliding guide groove (21) through the rotating arm (13), thereby allowing the sliding frame (2) to slide.

3. The air blowing device for a core-making machine according to claim 2, characterized in that: The mounting bracket (11) is provided with a guide rail (15), and the sliding bracket (2) is rotatably connected with a guide wheel (16), which is slidably mounted on the guide rail (15).

4. The air blowing device for a core-making machine according to claim 3, characterized in that: The mounting bracket (11) is also provided with a limiting block (17), which is located on one side of the guide rail (15) and is used to limit the movement stroke of the sliding frame (2).

5. The air blowing device for a core-making machine according to claim 1, characterized in that: The air blowing plate (3) is also provided with a pressing drive (33), the pressing drive (33) is connected to a connecting column (34), the connecting column (34) is connected to a mounting plate (35), and the mounting plate (35) is connected to a pressing component (36) for pressing the resin sand in the core box.

6. The air blowing device for a core-making machine according to claim 5, characterized in that: The mounting plate (35) is connected to a guide post (351), and the air blowing plate (3) is provided with a guide tube (37). The guide post (351) is slidably connected to the guide tube (37).

7. The air blowing device for a core-making machine according to claim 1, characterized in that: The blowing plate (3) has a cooling plate (5) at the end away from the nozzle. The cooling plate (5) includes an internal cooling channel (51) and an inlet pipe (52) and an outlet pipe (53) connected to the cooling channel (51).

8. The air blowing device for a core-making machine according to claim 7, characterized in that: The cooling plate (5) has a first docking hole (54), and the air blowing plate (3) has a second docking hole. The first docking hole (54) and the second docking hole are detachably connected to fasteners.

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