Sand cleaning device for removing sand core in box body

Abstract

The utility model relates to the technical field of sand core cleaning, and discloses a sand cleaning device for removing a sand core in a box body, which comprises a sand cleaning table, a sliding plate is slidably connected to the upper surface of the sand cleaning table in the left-right direction, and telescopic cylinders are fixedly connected to the left end and the right end of the upper surface of the sliding plate. A vibrating mechanism is arranged on the upper surface of the sand cleaning table and located on the right side of the sliding plate, a fan is arranged on the upper surface of the sand cleaning table and located behind the sliding plate, and an air pipe is fixedly connected to the air outlet end of the fan; an air outlet mechanism is arranged at the front end of the air pipe; through cooperation of the fan and the air outlet mechanism, directional high-pressure airflow impact is combined in the vibration sand removal process, and the problem of sand core residue of a complex structure of an inner cavity of the box body is effectively solved. The elastic sealing sleeve is tightly attached to the inner wall of an inlet of the box body, airflow leakage is prevented, and it is ensured that high-pressure airflow acts on hidden areas such as grooves and bends in a concentrated mode. And the quick locking design of the adjustable positioning block and the elastic sleeve is adaptive to box bodies with different shapes and sizes.

Description

Technical Field

[0001] This utility model relates to the field of sand core cleaning technology, specifically a sand cleaning device for removing sand cores from inside a housing. Background Technology

[0002] Sand cores are materials used to manufacture molding cores in casting production. They are generally composed of casting sand, molding sand binders, and additives mixed in a certain proportion. The molding core is mostly surrounded by high-temperature liquid metal in the mold, while the supporting and positioning parts are generally small in size. Therefore, in addition to possessing the properties of general molding sand, core sand also requires high strength, permeability, collapsibility, and disintegration. Some existing sand core cleaning equipment cannot meet the technical requirements for special workpieces in metal castings, and cannot achieve the required level of sand core cleaning for special workpieces.

[0003] According to the metal casting sand core cleaning machine disclosed in Chinese Utility Model Patent No. CN216912056U, the casting is shaken by a vibrating motor to remove sand. A low-speed rotating mechanism drives the casting to rotate back and forth at a low speed, resulting in a high sand core removal rate inside the casting. For different workpieces, a high-speed rotating mechanism is used to drive the casting to rotate at high speed. The shaking and high-speed rotation thoroughly remove the sand core inside the casting by centrifugal force, resulting in a low residue rate.

[0004] In actual use, some metal castings have grooves. Simply using vibration and rotation cannot effectively clean the sand core from the grooves, affecting subsequent production processes of the metal castings.

[0005] Chinese patent discloses a sand core cleaning device (authorization announcement number CN219484169U). This patented technology combines rotation, vibration and air pump blowing to remove sand cores from metal castings to the maximum extent, preventing the metal castings from being affected by sand cores in subsequent processing and thus reducing their quality. The overall structure is simple and easy to operate. Workers only need to replace the metal castings to continue cleaning.

[0006] However, it has certain drawbacks: its sand core cleaning technology is limited to removing sand cores from the surface of castings, and it is difficult to effectively clean residual sand cores in complex internal cavities, narrow channels and hidden areas. For example, conventional vibration sand cleaning is prone to incomplete breakage of internal sand cores due to structural limitations, while static air blowing cannot penetrate deep into the cavity due to airflow dispersion or insufficient sealing. Utility Model Content

[0007] The purpose of this invention is to provide a sand-removing device for removing sand cores from inside a housing, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A sand-removing device for removing sand cores from inside a box includes a sand-removing platform. A sliding plate is slidably connected to the upper surface of the sand-removing platform in the left-right direction. Telescopic cylinders are fixed to both ends of the upper surface of the sliding plate. A clamping plate is fixed to the telescopic end of the telescopic cylinder. A vibration mechanism is provided on the upper surface of the sand-removing platform to the right of the sliding plate, and a fan is provided on the upper surface of the sand-removing platform behind the sliding plate. A duct is fixed to the air outlet end of the fan.

[0010] The front end of the duct is provided with an air outlet mechanism, which includes an installation pipe. An installation sleeve is threaded onto the outside of the installation pipe. An elastic sleeve is fixedly sleeved onto the outside of the installation sleeve. A positioning plate is movably sleeved above the installation sleeve on the outside of the installation pipe. A positioning bolt is threaded through the rear surface of the positioning plate. Sliding holes are provided on both the left and right sides of the front surface of the positioning plate. Positioning blocks are slidably connected inside both ends of the positioning plate. A slider is fixedly connected to the end of the front surface of the positioning block near the installation pipe. An adjustment component is provided on the front surface of the positioning plate between the two sliding holes.

[0011] As a further embodiment of this utility model: the vibration mechanism includes a support plate, a motor is fixedly connected to the rear surface of the support plate, a turntable is fixedly connected to the output end of the motor, a rotating rod is rotatably connected to the outer edge of the front surface of the turntable, a support rod is rotatably connected to the left end of the rotating rod, and a support block is movably sleeved on the outside of the support rod.

[0012] As a further embodiment of this utility model: the adjusting component includes a connecting rod, with connecting blocks 1 rotatably sleeved on both the left and right sides of the outer side of the connecting rod, and connecting blocks 2 threadedly sleeved on both the left and right ends of the outer side of the connecting rod.

[0013] As a further embodiment of this utility model: the front end of the air duct is fixedly sleeved on the outside of the upper end of the mounting pipe, the front end of the positioning bolt is attached to the mounting pipe, and the slider is movably located in the sliding hole.

[0014] As a further embodiment of this utility model: the left end of the support rod is fixedly connected to the right end of the slide plate, and both the support plate and the support block are fixedly connected to the upper surface of the sand cleaning table.

[0015] As a further embodiment of this utility model: the first connecting block is fixed to the front surface of the positioning plate, and the first connecting block is located between two sliding holes, and the two second connecting blocks are respectively fixed to the left and right sliders.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention effectively solves the problem of sand core residue in complex internal structures of the cleaning chamber by combining the coordinated operation of the fan and the air outlet mechanism with the impact of directional high-pressure airflow during the vibration sand removal process. The elastic sealing sleeve fits tightly against the inner wall of the chamber inlet to prevent airflow leakage and ensure that the high-pressure airflow is concentrated on hidden areas such as grooves and bends. The adjustable positioning block and the quick-locking design of the elastic sleeve are adapted to chambers of different shapes and sizes, preventing the device from shifting or falling off during operation. At the same time, the easy replacement of the elastic sleeve further expands the applicability of the device. The dynamic coupling of vibration and high-pressure airflow not only efficiently removes large sand cores but also thoroughly removes fine sand and dust, significantly improving sand removal efficiency and cleanliness. Attached Figure Description

[0018] Figure 1 A schematic diagram of a sand-removing device for removing sand cores from inside a housing;

[0019] Figure 2 A schematic diagram of the vibration mechanism in a sand cleaning device for removing sand cores from inside a box.

[0020] Figure 3 A partial schematic diagram of a sand-removing device for removing sand cores from inside a housing;

[0021] Figure 4 This is a schematic diagram of the air outlet mechanism in a sand cleaning device for removing sand cores from inside a housing;

[0022] Figure 5 This is a partial schematic diagram of the air outlet mechanism in a sand cleaning device for removing sand cores from inside a housing;

[0023] Figure 6 This is a schematic diagram of the adjusting component in a sand cleaning device for removing sand cores from inside a box.

[0024] In the diagram: 1. Sand cleaning table; 2. Slide plate; 3. Telescopic cylinder; 4. Clamping plate; 5. Vibration mechanism; 6. Support plate; 7. Motor; 8. Turntable; 9. Rotating rod; 10. Support rod; 11. Support block; 12. Fan; 13. Air duct; 14. Air outlet mechanism; 15. Mounting pipe; 16. Mounting sleeve; 17. Elastic sleeve; 18. Positioning plate; 19. Positioning bolt; 20. Sliding hole; 21. Positioning block; 22. Sliding block; 23. Adjusting component; 24. Connecting rod; 25. Connecting block one; 26. Connecting block two; 27. Box body. Detailed Implementation

[0025] Please see Figure 1 and Figure 2In this embodiment of the utility model, a sand-removing device for removing sand cores inside a box includes a sand-removing platform 1. A sliding plate 2 is slidably connected to the upper surface of the sand-removing platform 1 in the left and right directions. Telescopic cylinders 3 are fixed to both ends of the upper surface of the sliding plate 2. A clamping plate 4 is fixed to the telescopic end of the telescopic cylinder 3. A vibration mechanism 5 is provided on the upper surface of the sand-removing platform 1 to the right of the sliding plate 2. The vibration mechanism 5 includes a support plate 6. A motor 7 is fixed to the rear surface of the support plate 6. A turntable 8 is fixed to the output end of the motor 7. A rotating rod 9 is rotatably connected to the outer edge of the front surface of the turntable 8. A support rod 10 is rotatably connected to the left end of the rotating rod 9. The left end of the support rod 10 is fixed to the right end of the sliding plate 2. A support block 11 is movably sleeved on the outside of the support rod 10. The support plate 6 and the support block 11 are both fixed to the upper surface of the sand-removing platform 1.

[0026] The telescopic cylinder 3 is preferably a pneumatic cylinder. After the two telescopic cylinders 3 extend, they drive the clamping plate 4 to clamp and fix the box 27.

[0027] Motor 7 is equipped with a brake, meaning that the motor shaft cannot rotate after power is cut off;

[0028] When the turntable 8 rotates, it can drive the support rod 10 to move back and forth, which in turn drives the slide plate 2 to move back and forth, creating vibration and shaking off the sand core on the surface and inside of the box 27.

[0029] exist Figure 1 , Figures 3-6 In the middle: A fan 12 is installed on the upper surface of the sand cleaning table 1 behind the slide plate 2, and an air duct 13 is fixedly connected to the air outlet end of the fan 12;

[0030] The fan 12 is preferably a centrifugal fan, which has a sufficiently large airflow.

[0031] An air outlet mechanism 14 is provided at the front end of the duct 13. The air outlet mechanism 14 includes an installation pipe 15. The front end of the duct 13 is fixedly sleeved on the upper outside of the installation pipe 15. An installation sleeve 16 is threaded onto the outside of the installation pipe 15. An elastic sleeve 17 is fixedly sleeved onto the outside of the installation sleeve 16. A positioning plate 18 is movably sleeved on the outside of the installation pipe 15 above the installation sleeve 16. A positioning bolt 19 is threaded through the rear surface of the positioning plate 18. The front end of the positioning bolt 19 fits against the installation pipe 15. Sliding holes 20 are provided on both the left and right sides of the front surface of the positioning plate 18. The left and right ends of the positioning plate 18 are slidably connected. A positioning block 21 is attached. A slider 22 is fixedly attached to one end of the front surface of the positioning block 21 near the mounting tube 15. The slider 22 is movably located in the sliding hole 20. An adjusting component 23 is provided on the front surface of the positioning plate 18 between the two sliding holes 20. The adjusting component 23 includes a connecting rod 24. A connecting block 25 is rotatably sleeved on both the left and right sides of the connecting rod 24. The connecting block 25 is fixed to the front surface of the positioning plate 18 and is located between the two sliding holes 20. A connecting block 26 is threadedly sleeved on both the left and right ends of the connecting rod 24. The two connecting blocks 26 are respectively fixed to the left and right sliders 22.

[0032] The blower 12 is used to blow air into the housing 27 to blow out the sand core from the grooves and winding areas of the housing 27;

[0033] The elastic sleeve 17 is preferably made of rubber, which is used to fit tightly against the inner wall of the box 27 so that the airflow through the inlet will not leak and the airflow is large enough.

[0034] The elastic sleeve 17 can be removed from the outside of the mounting tube 15 through the mounting sleeve 16, making it easy to replace elastic sleeves 17 of different shapes and specifications to suit boxes 27 with different inner wall shapes and specifications.

[0035] The threads of the two connecting blocks 26 are opposite, that is, when the connecting rod 24 is rotated, the two connecting blocks 26 will move relative to each other or in opposite directions;

[0036] The two connecting blocks 26 are used to drive the two positioning blocks 21 to move relative to each other or away from each other via the slider 22;

[0037] Two positioning blocks 21 are used to press against the inner wall of the housing 27, so as to fix the entire air outlet mechanism 14 in the housing 27 and prevent the air outlet mechanism 14 from tilting or popping out during vibration.

[0038] The working principle of this utility model is as follows: When in use, first place the box 27 to be cleaned above the slide plate 2 of the sand cleaning platform 1, control the telescopic cylinders 3 on both sides to extend synchronously, and drive the clamping plate 4 to clamp the box 27; then insert the elastic sleeve 17 of the air outlet mechanism 14 into the inlet of the box 27, so that the elastic sleeve 17 fits tightly against the inner wall of the inlet of the box 27; rotate the connecting rod 24, drive the two connecting blocks 26 to move in opposite directions, so that the slider 22 slides along the sliding hole 20, push the positioning block 21 to press against the inner wall of the box 27, and complete the fixation of the air outlet mechanism 14; start the motor 7 to drive the turntable 8 to rotate, and through the linkage of the rotating rod 9 and the support rod 10, force the slide plate 2 to drive the box 27 to vibrate left and right at high frequency, causing the surface and internal sand core to break and fall off; at the same time, turn on the fan 12, and the high-pressure airflow rushes into the internal cavity of the box 27 through the air pipe 13 and the installation pipe 15, and uses the airflow impact to further peel off the residual sand core in the groove and bend, and the sand dust is discharged and recycled from the outlet of the box 27 with the airflow.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A sand cleaning device for removing sand cores inside a box, comprising a sand cleaning platform (1), wherein a sliding plate (2) is slidably connected to the upper surface of the sand cleaning platform (1) in the left and right directions, and telescopic cylinders (3) are fixedly connected to both ends of the upper surface of the sliding plate (2), and a clamping plate (4) is fixedly connected to the telescopic end of the telescopic cylinder (3), a vibration mechanism (5) is provided on the upper surface of the sand cleaning platform (1) to the right of the sliding plate (2), and a fan (12) is provided on the upper surface of the sand cleaning platform (1) behind the sliding plate (2), and a duct (13) is fixedly connected to the air outlet end of the fan (12). Its features are, The front end of the duct (13) is provided with an air outlet mechanism (14), the air outlet mechanism (14) includes an installation tube (15), the installation tube (15) is threaded with an installation sleeve (16), the installation sleeve (16) is fixedly sleeved with an elastic sleeve (17), the installation tube (15) is movably sleeved above the installation sleeve (16) and the rear surface of the positioning plate (18) is threaded with a positioning bolt (19), and the left and right sides of the front surface of the positioning plate (18) are provided with sliding holes (20), the left and right ends of the positioning plate (18) are slidably connected with positioning blocks (21), the front surface of the positioning block (21) is fixedly connected with a slider (22) at one end near the installation tube (15), and the front surface of the positioning plate (18) is provided with an adjusting member (23) between the two sliding holes (20).

2. The sand-removing device for removing sand cores inside a box according to claim 1, characterized in that, The vibration mechanism (5) includes a support plate (6), a motor (7) is fixedly connected to the rear surface of the support plate (6), a turntable (8) is fixedly connected to the output end of the motor (7), a rotating rod (9) is rotatably connected to the outer edge of the front surface of the turntable (8), a support rod (10) is rotatably connected to the left end of the rotating rod (9), and a support block (11) is movably sleeved on the outside of the support rod (10).

3. The sand-removing device for removing sand cores inside a box according to claim 1, characterized in that, The adjusting component (23) includes a connecting rod (24), on the left and right sides of the outside of the connecting rod (24) a connecting block one (25) is rotatably sleeved, and on the left and right ends of the outside of the connecting rod (24) a connecting block two (26) is threadedly sleeved.

4. The sand-removing device for removing sand cores inside a box according to claim 1, characterized in that, The front end of the air duct (13) is fixedly sleeved on the upper outside of the mounting pipe (15), the front end of the positioning bolt (19) is attached to the mounting pipe (15), and the slider (22) is movably located in the sliding hole (20).

5. A sand-removing device for removing sand cores inside a box according to claim 2, characterized in that, The left end of the support rod (10) is fixed to the right end of the slide plate (2), and the support plate (6) and the support block (11) are both fixed to the upper surface of the sand cleaning table (1).

6. A sand-removing device for removing sand cores inside a box according to claim 3, characterized in that, The first connecting block (25) is fixed to the front surface of the positioning plate (18), and the first connecting block (25) is located between two sliding holes (20). The two second connecting blocks (26) are respectively fixed to the left and right sliders (22).

Images