A sand mold casting post-molding shakeout device

Abstract

The application relates to the technical field of sand shakeout processing, and specifically discloses a device for sand shakeout processing after sand mold casting, which comprises a frame body, a placing table and a negative pressure dust collector arranged at the upper end of the frame body, a mounting plate slidingly arranged at the upper end of the frame body, a first air cylinder arranged at the upper end of the frame body and fixedly connected with the telescopic end of the mounting plate, a conical cover arranged at the upper end of the mounting plate, a clamping and adjusting assembly arranged on the placing table, and a cleaning mechanism arranged on the frame body; the workpiece is placed on the placing table, the clamping and adjusting assembly in the application can stably clamp and position the workpiece, when the workpiece is adjusted to a proper position, the first air cylinder is started, the telescopic end of the first air cylinder is moved to drive the mounting plate and the conical cover to move, so that the conical cover abuts against the workpiece, then the negative pressure dust collector is started, and the casting sand adhered to the inner circumferential wall of the through hole of the workpiece is cleaned by the cleaning mechanism, so that the automatic and integrated operation of the sand shakeout processing of the casting with the through hole is realized.

Description

Technical Field

[0001] This application relates to the field of sand removal technology, and in particular to a sand removal device for sand casting after molding. Background Technology

[0002] The sand removal treatment device is an indispensable post-processing equipment in the sand casting production line. Its main function is to remove the molding sand and core sand covering the surface of the casting and filling its internal cavities by physical or mechanical means after the casting has solidified and cooled, thereby obtaining a clean casting blank. The inside of the engine cylinder block is usually equipped with a large number of complex channels for coolant circulation and lubricating oil delivery. These include long and straight through holes, straight stepped through holes with abrupt changes in diameter, and multi-directional through holes. These through holes have special structures and are filled with sand cores during the casting process. After molding, the disintegrated sand particles from the sand cores are easily retained and adhered to the hole walls and step corners. If the cleaning is not thorough, it may lead to blockage of lubrication lines, abnormal wear of friction pairs, or even failure of key components, seriously threatening the reliability of the whole machine and bringing huge quality risks and after-sales costs.

[0003] In existing technologies, sand removal treatment devices typically include a vibratory sand removal machine, shot blasting equipment, and an auxiliary air blowing system. Their core structure consists of a carrying and conveying unit, a power and execution unit, and a media circulation and separation unit. The carrying unit is usually a roller conveyor or chain conveyor, responsible for transporting the casting to a closed or semi-closed cleaning chamber. The power and execution unit includes multi-directional shot blasters installed on the top and side walls of the cleaning chamber, or a vibrator that drives the entire casting fixture to vibrate in multiple dimensions at high frequency. Its function is to use the impact kinetic energy of high-speed shot or the alternating stress generated by continuous vibration to break and peel off the attached sand layer. The media circulation unit includes a screw conveyor, a bucket elevator, and an air separator, used to separate the fallen sand particles and dust from the recyclable shot. These structures work together through motor drive, pipeline connection, and electrical control system to form a complete cleaning cycle.

[0004] Regarding the aforementioned technologies, the cleaning capacity of vibratory sandblasting machines and multi-directional shot blasting equipment decreases at deeper depths of long, straight through-holes with large depth-to-diameter ratios, potentially leaving residues on the inner wall of the hole. Furthermore, for stepped through-holes, intersecting through-holes with inconsistent diameters, and conical through-holes, mechanical shadow zones and sand accumulation zones are easily formed at the abrupt changes in diameter, at the intersections of through-holes with inconsistent diameters, and at the conical slopes. Existing technologies provide homogenized impact or vibration that is insufficient to effectively address these localized special morphologies, resulting in cleaning dead zones. Moreover, achieving a certain level of cleanliness often requires extended processing time or repeated operations, leading to low cleaning efficiency, increased energy consumption, and the potential for hidden damage to thin-walled areas of the casting due to excessive impact or vibration. Therefore, improvements are needed. Summary of the Invention

[0005] In order to solve the above-mentioned technical problems, this application provides a device for sand removal treatment after sand casting.

[0006] The technical solution provided in this application for a sand casting post-molding sand removal device is as follows: A sand removal device for sand casting after molding includes a frame. The upper end of the frame is provided with a mounting frame, a placement platform, and a negative pressure vacuum cleaner, with the placement platform located between the mounting frame and the negative pressure vacuum cleaner. An mounting plate is slidably mounted on the upper end of the frame along its length, located between the placement platform and the negative pressure vacuum cleaner. A first cylinder is horizontally mounted on the upper end of the frame, with its telescopic end fixedly connected to the mounting plate. A conical cover is mounted on the upper end of the mounting plate and communicates with the suction end of the negative pressure vacuum cleaner. A clamping and adjusting assembly for stably clamping and adjusting the position of the workpiece is provided on the placement platform. A cleaning mechanism for cleaning casting sand adhering to the inner circumferential wall of the workpiece's through-hole is provided on the mounting frame.

[0007] By adopting the above technical solution, the workpiece is placed on the placement table. The clamping and adjusting component in this application can stably clamp the workpiece and adjust its position. When the workpiece is adjusted to a suitable position, the first cylinder is activated. The extension end of the first cylinder moves, driving the mounting plate to move. The movement of the mounting plate drives the conical cover to move, thereby causing the conical cover to come into contact with the workpiece. Then, the negative pressure vacuum cleaner is activated, and the cleaning mechanism on the mounting frame cleans the casting sand adhering to the inner circumferential wall of the through hole of the workpiece. This realizes the automated and integrated operation of sand removal treatment for castings with through holes, improves the cleaning effect and cleaning efficiency, and maintains the cleanliness of the working environment.

[0008] Optionally, the clamping and adjusting assembly includes a second cylinder, a sliding table, a first lead screw motor, a rotating component, and a deflecting component. Two sets of second cylinders are symmetrically arranged, and both sets of second cylinders are horizontally arranged at the upper end of the placement table. The sliding table is slidably arranged at the upper end of the frame along the width direction of the frame and located at the lower end of the placement table. The first lead screw motor is arranged at the upper end of the frame, and its output end is threadedly connected to the lower end of the sliding table. The rotating component and the deflecting component are both arranged on the sliding table and are used to rotate and deflect the workpiece on the placement table, respectively.

[0009] By adopting the above technical solution, the workpiece is placed on the placement table, and two sets of second cylinders are started at the same time. The extension and retraction ends of the two sets of second cylinders can stably clamp the workpiece. Then, the first lead screw motor is started. The output end of the first lead screw motor rotates and drives the sliding table to slide along the width of the frame, so that the through hole to be cleaned is coaxial with the cleaning mechanism and the conical cover, thereby improving the comprehensiveness and adaptability of the cleaning.

[0010] Optionally, the rotating component includes a rotating disk and a rotating cylinder. The rotating disk is rotatably disposed on the upper end of the sliding table and located at the lower end of the placement platform. The rotating cylinder is disposed on the sliding table, and its output end is fixedly connected to the rotating disk.

[0011] By adopting the above technical solution, the rotary cylinder is started, and the output end of the rotary cylinder rotates to drive the rotating disk to rotate on the sliding table. The rotation of the rotating disk drives the placement table and the workpiece to rotate, so that the through hole of the workpiece faces the cleaning mechanism, providing the basic motion conditions for comprehensive circumferential cleaning.

[0012] Optionally, the deflecting component includes a first electric telescopic rod and a universal joint. Two sets of universal joints are symmetrically arranged, and the two sets of universal joints are respectively located at the upper end of the rotating disk and the lower end of the placement platform. The first electric telescopic rod is vertically arranged between the two sets of universal joints, and its mounting end and telescopic end are respectively fixedly connected to the two sets of universal joints. Four sets of deflecting components are symmetrically arranged, and the four sets of deflecting components are located at the four corners of the lower end of the placement platform.

[0013] By adopting the above technical solution, four sets of first electric telescopic rods are activated according to the condition of the through hole. The telescopic end of the first electric telescopic rod moves, driving the universal joint at the upper end to move. Through the vertical extension and retraction of the four sets of first electric telescopic rods, combined with the connection method of the universal joints at both ends, the placement platform and the workpiece on it can be deflected at a certain angle relative to the rotating disk, thereby deflecting the through hole of the workpiece and making it coaxial with the cleaning mechanism and the conical cover, which facilitates the cleaning and collection of casting sand.

[0014] Optionally, the cleaning mechanism includes a sliding seat, a second lead screw motor, a first drive motor, a mounting cylinder, a cleaning column, a cleaning blade, a cleaning adjustment assembly, and a vibration cleaning assembly. The sliding seat is slidably disposed on the upper end of the mounting frame along the length direction of the frame body. The second lead screw motor is disposed on the upper end of the mounting frame, and its output end is threadedly connected to the lower end of the sliding seat. The mounting cylinder is disposed on the side wall of the sliding seat near the placement platform. The cleaning column is rotatably disposed on the end of the mounting cylinder away from the sliding seat. The first drive motor is disposed on the inner wall of the mounting cylinder near the sliding seat, and its output end is fixedly connected to the end of the cleaning column near the sliding seat. The cleaning blade is raised and lowered on the outer peripheral wall of the cleaning column away from the sliding seat. The cleaning adjustment assembly is disposed inside the cleaning column and is used to adjust the extension length of the cleaning blade. The vibration cleaning assembly is disposed on the sliding seat and is used to vibrate and clean the adhering casting sand with the cleaning blade.

[0015] By adopting the above technical solution, the first drive motor is started, and the output end of the first drive motor rotates to drive the cleaning column to rotate. The rotation of the cleaning column drives the cleaning blade to rotate. Then the second lead screw motor is started, and the output end of the second lead screw motor rotates to drive the sliding seat to move along the length of the frame. The movement of the sliding seat drives the mounting cylinder, the cleaning column and the cleaning blade to move, thereby driving the cleaning blade to scrape and clean the inner peripheral wall of the through hole.

[0016] Optionally, the cleaning adjustment assembly includes a third cylinder, a movable plate, an adjusting cylinder, a conical adjusting head, and a first spring. Two sets of the third cylinder are symmetrically arranged, and both sets are horizontally fixed on the inner wall of the mounting cylinder near the sliding seat. The movable plate is located on the telescopic ends of the two sets of third cylinders. A sliding groove is provided inside the cleaning column to allow the adjusting cylinder to slide horizontally within the cleaning column. The adjusting cylinder is slidably disposed within the sliding groove, and its end near the sliding seat is fixedly connected to the movable plate. The conical adjusting head is located at the end of the adjusting cylinder away from the movable plate and is slidably disposed within the sliding groove. An inclined surface is provided at the end of the cleaning blade near the conical adjusting head. When the conical adjusting head slides against the inclined surface, the cleaning blade can rise and fall. Two sets of the first spring are symmetrically arranged, and both sets are located between the cleaning blade and the cleaning column. One end of the first spring is fixedly connected to the end of the cleaning blade near the inner wall of the cleaning column, and the other end is fixedly connected to the inner wall of the cleaning column.

[0017] By adopting the above technical solution, when cleaning stepped through holes, cross through holes with inconsistent diameters, and tapered through holes is required, two sets of third cylinders are activated. The telescopic ends of the two sets of third cylinders move synchronously, driving the moving plate to move. The moving plate causes the adjusting cylinder to slide horizontally in the sliding groove of the cleaning column. The sliding of the adjusting cylinder causes the tapered adjusting head at the end to move horizontally. When the tapered adjusting head slides and abuts against the inclined surface at the end of the cleaning blade, it forces the cleaning blade to overcome the elastic force of the first spring and extend outward. When the tapered adjusting head moves in the opposite direction and disengages from the abutment, the elastic force of the first spring can pull the cleaning blade back inward. This achieves precise, stable, and synchronous control of the working radius of the cleaning blade, enabling the cleaning blade to clean stepped through holes, cross through holes with inconsistent diameters, and tapered through holes, and adapting to through holes of different diameters within a certain range, thus enhancing the versatility of the device.

[0018] Optionally, the vibration cleaning assembly includes a second drive motor, a second spring, a rotating plate, a vibration plate, a first protrusion, and a second protrusion. The second drive motor is disposed on the side wall of the sliding seat away from the first drive motor, and its output end passes through the sliding seat. The rotating plate is rotatably disposed on the side wall of the sliding seat away from the second drive motor and is fixedly connected to the output end of the second drive motor. A moving groove is provided in the sliding seat. The vibration plate is slidably disposed in the moving groove, and its end away from the second drive motor is fixedly connected to the end of the mounting cylinder away from the cleaning column. One end of the second spring is fixedly connected to the inner bottom wall of the moving groove, and the other end is fixedly connected to the end of the vibration plate near the sliding seat. The first protrusion is disposed on the side of the rotating plate near the first drive motor, and the second protrusion is disposed on the side of the vibration plate near the first drive motor. When the first protrusion and the second protrusion slide against each other, the second protrusion can drive the mounting cylinder to reciprocate along the length direction of the cleaning column.

[0019] By adopting the above technical solution, when vibration cleaning is required, the second drive motor is started. The output end of the second drive motor rotates, causing the rotating plate to rotate. The first protrusion on the rotating plate rotates with the rotating plate and periodically slides against the second protrusion on the vibration plate, thereby pushing the vibration plate to overcome the tension of the second spring and slide in the moving groove. When the first protrusion and the second protrusion disengage, the tension of the second spring will cause the vibration plate to reset. The reciprocating sliding of the vibration plate drives the mounting cylinder to move back and forth. The reciprocating movement of the mounting cylinder drives the cleaning column and the cleaning blade to move back and forth, thereby giving the cleaning blade a linear reciprocating vibration with a specific frequency and amplitude. This causes the cleaning blade to generate axial hammering vibration while rotating and scraping, effectively breaking the adhesive layer and significantly improving the cleaning ability for stubborn foundry sand.

[0020] Optionally, a tapered drill bit is provided at the end of the cleaning column away from the first drive motor.

[0021] By adopting the above technical solution, when cleaning foundry sand, the conical drill bit at the end of the cleaning column rotates and vibrates axially along with the cleaning column. When encountering sand core blockage or large pieces of adhesive inside the through hole, the rotating conical drill bit can perform preliminary drilling and crushing, creating conditions for the subsequent circumferential cleaning of the cleaning cutter and improving the device's ability to handle severe blockages.

[0022] Optionally, the upper end of the frame is hinged to an inclined platform, and both the mounting bracket and the placement platform are located at the upper end of the inclined platform. A second electric telescopic rod is rotatably provided at the lower end of the frame away from the negative pressure vacuum cleaner, and the telescopic end of the second electric telescopic rod is rotatably connected to the lower end of the inclined platform.

[0023] By adopting the above technical solution, when cleaning the casting sand from the workpiece, the second electric telescopic rod is activated. The telescopic end of the second electric telescopic rod moves, causing the tilting platform to rise. Since the mounting end of the second electric telescopic rod is rotatably installed at the lower end of the frame, and the telescopic end is rotatably connected to the lower end of the tilting platform, the telescopic end of the second electric telescopic rod can make the tilting platform rotate around its hinge point with the frame, thereby changing the tilt angle of the tilting platform. This causes the mounting frame, placement platform, and workpiece on the tilting platform to tilt, using gravity to assist the loosened casting sand in the hole to flow towards the hole opening, facilitating collection by the negative pressure vacuum cleaner. In addition, for some complex workpieces, tilting at a certain angle may be more conducive to the effective cleaning of various parts of the inner cavity, enhancing the process adaptability of the device.

[0024] Optionally, a visual sensor for observing the cleaning status of the inner wall of the workpiece is embedded in the outer peripheral wall of the cleaning column near the cleaning blade.

[0025] By adopting the above technical solution, after the casting sand adhering to the inner wall of the through hole is cleaned, the second lead screw motor and the first drive motor are started. The output end of the second lead screw motor rotates, which drives the sliding seat to move. The movement of the sliding seat drives the cleaning column and the vision sensor to move. The rotation of the first drive motor drives the cleaning column and the vision sensor to rotate, thereby obtaining an image of the inner wall of the workpiece through hole, intuitively monitoring the cleaning status of the inner wall, providing a basis for process optimization and quality control, and avoiding over-cleaning or under-cleaning.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The cleaning adjustment assembly in this application can adjust the extension length of the cleaning blade. When cleaning stepped through holes, cross through holes with inconsistent diameters, and tapered through holes is required, two sets of third cylinders are activated. The telescopic ends of the two sets of third cylinders move synchronously, driving the moving plate to move. The moving plate causes the adjusting cylinder to slide horizontally within the sliding groove of the cleaning column. The sliding of the adjusting cylinder causes the tapered adjusting head at the end to move horizontally. When the tapered adjusting head slides against the inclined surface at the end of the cleaning blade, it forces the cleaning blade to overcome the elastic force of the first spring and extend outward. When the shape adjustment head moves in the opposite direction and disengages from the contact, the elastic force of the first spring can pull the cleaning blade inward, thereby achieving precise, stable and synchronous control of the working radius of the cleaning blade. This allows the cleaning blade to clean stepped through holes, cross through holes with inconsistent diameters and tapered through holes, and adapt to through holes of different diameters within a certain range, enhancing the versatility of the device. In addition, the linear reciprocating excitation of a specific frequency and amplitude can make the cleaning blade generate axial hammering vibration while rotating and scraping, effectively breaking the adhesive layer and improving the cleaning ability of stubborn casting sand. 2. The conical drill bit in this application can perform preliminary drilling and crushing. When cleaning the foundry sand, the conical drill bit at the end of the cleaning column rotates and vibrates axially with the cleaning column. When encountering sand core blockage or large pieces of adhesive inside the through hole, the rotating conical drill bit can perform preliminary drilling and crushing, creating conditions for the circumferential cleaning of the subsequent cleaning cutter and improving the device's ability to handle severe blockages. 3. The vision sensor in this application can intuitively monitor the cleaning status of the inner wall. After the casting sand adhering to the inner wall of the through hole is cleaned, the vision sensor can acquire an image of the inner wall of the workpiece through hole, intuitively monitor the cleaning status of the inner wall, and provide a basis for process optimization and quality control, avoiding over-cleaning or under-cleaning. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a partial structural diagram of the cleaning mechanism; Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure; Figure 4 yes Figure 3 A cross-sectional structural diagram of part of the structure.

[0029] Reference numerals: 1. Frame; 11. Mounting bracket; 12. Placement platform; 13. Negative pressure vacuum cleaner; 14. Mounting plate; 15. First cylinder; 16. Conical cover; 2. Clamping and adjusting assembly; 21. Second cylinder; 22. Sliding table; 23. First lead screw motor; 24. Rotary disk; 25. Rotary cylinder; 26. First electric telescopic rod; 27. Universal joint; 3. Cleaning mechanism; 31. Sliding seat; 32. Second lead screw motor; 33. First drive motor; 34. Mounting cylinder; 3 5. Cleaning column; 36. Cleaning blade; 4. Cleaning adjustment assembly; 41. Third cylinder; 42. Moving plate; 43. Adjusting cylinder; 44. Conical adjusting head; 45. First spring; 46. Sliding groove; 5. Vibration cleaning assembly; 51. Second drive motor; 52. Second spring; 53. Rotating plate; 54. Vibration plate; 55. First protrusion; 56. Second protrusion; 57. Moving groove; 6. Conical drill bit; 7. Inclined table; 71. Second electric telescopic rod; 8. Vision sensor. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0031] This application discloses a device for handling sand removal after sand casting, referring to... Figure 1 A device for handling sand after sand casting includes a frame 1. An mounting frame 11, a placement platform 12, and a negative pressure vacuum cleaner 13 are fixedly installed on the upper end of the frame 1, with the placement platform 12 located between the mounting frame 11 and the negative pressure vacuum cleaner 13. An mounting plate 14 is slidably installed on the upper end of the frame 1 along its length, located between the placement platform 12 and the negative pressure vacuum cleaner 13. A first cylinder 15 is horizontally bolted on the upper end of the frame 1, and its telescopic end is fixedly connected to the mounting plate 14. A conical cover 16 is fixedly installed on the upper end of the mounting plate 14 and communicates with the suction end of the negative pressure vacuum cleaner 13. A clamping and adjusting assembly 2 is installed on the placement platform 12, and a cleaning mechanism 3 is installed on the mounting frame 11.

[0032] The workpiece is placed on the placement platform 12. The clamping and adjusting assembly 2 in this embodiment can stably clamp the workpiece and adjust its position. When the workpiece is adjusted to a suitable position, the first cylinder 15 is activated. The extension end of the first cylinder 15 moves, driving the mounting plate 14 to move. The movement of the mounting plate 14 drives the conical cover 16 to move, so that the conical cover 16 comes into contact with the workpiece. Then, the negative pressure vacuum cleaner 13 is activated, and the cleaning mechanism 3 on the mounting frame 11 cleans the casting sand adhering to the inner peripheral wall of the through hole of the workpiece. This realizes the automated and integrated operation of the sand removal treatment of castings with through holes, improves the cleaning effect and cleaning efficiency, and maintains the cleanliness of the working environment.

[0033] Reference Figure 1 In order to stably clamp the workpiece and make the workpiece coaxial with the conical cover 16 and the cleaning mechanism 3, the clamping adjustment assembly 2 in this embodiment includes a second cylinder 21, a sliding table 22, a first lead screw motor 23, a rotating component and a deflecting component. Two sets of second cylinders 21 are symmetrically arranged. Both sets of second cylinders 21 are horizontally bolted to the upper end of the placement table 12. The sliding table 22 is slidably installed on the upper end of the frame 1 along the width direction of the frame 1 and is located at the lower end of the placement table 12. The first lead screw motor 23 is bolted to the upper end of the frame 1 and its output end is threadedly connected to the lower end of the sliding table 22. The rotating component and the deflecting component are both installed on the sliding table 22.

[0034] The workpiece is placed on the placement platform 12, and two sets of second cylinders 21 are activated simultaneously. The extension and retraction ends of the two sets of second cylinders 21 move to stably clamp the workpiece. Then, the first lead screw motor 23 is activated. The output end of the first lead screw motor 23 rotates, driving the sliding table 22 to slide along the width direction of the frame 1, so that the through hole to be cleaned is coaxial with the cleaning mechanism 3 and the conical cover 16, improving the comprehensiveness and adaptability of the cleaning. In this embodiment, the ends of the two sets of second cylinders 21 are provided with clamping blocks. The clamping blocks increase the contact area between the cylinder and the workpiece, which can evenly distribute the clamping pressure, thereby achieving stable and reliable clamping while protecting the integrity and appearance quality of the workpiece.

[0035] Reference Figure 1 The axis formed by the through hole to be cleaned on the workpiece and the cleaning mechanism 3 and the conical cover 16 may have a deflection angle in the horizontal section. Therefore, the rotating component in this embodiment includes a rotating disk 24 and a rotating cylinder 25. The rotating disk 24 is rotatably mounted on the upper end of the sliding table 22 and located at the lower end of the placement table 12. The rotating cylinder 25 is bolted on the sliding table 22 and its output end is fixedly connected to the rotating disk 24.

[0036] The rotary cylinder 25 is started, and the output end of the rotary cylinder 25 rotates, causing the rotary disk 24 to rotate on the sliding table 22. The rotation of the rotary disk 24 causes the placement table 12 and the workpiece to rotate, so that the through hole of the workpiece faces the cleaning mechanism 3, providing the basic motion conditions for comprehensive circumferential cleaning.

[0037] Reference Figure 1 The axis formed by the through hole to be cleaned on the workpiece and the cleaning mechanism 3 and the conical cover 16 may have a deflection angle in the vertical section. Therefore, the deflection component in this embodiment includes a first electric telescopic rod 26 and a universal joint 27. Two sets of universal joints 27 are symmetrically arranged. The two sets of universal joints 27 are fixedly installed on the upper end of the rotating disk 24 and the lower end of the placement platform 12, respectively. The first electric telescopic rod 26 is vertically installed between the two sets of universal joints 27, and the installation end and the telescopic end are fixedly connected to the two sets of universal joints 27, respectively. Four sets of deflection components are symmetrically arranged. The four sets of deflection components are located at the four corners of the lower end of the placement platform 12.

[0038] Based on the condition of the through hole, four sets of first electric telescopic rods 26 are activated. The telescopic end of the first electric telescopic rod 26 moves, driving the upper universal joint 27 to move. Through the vertical extension and retraction of the four sets of first electric telescopic rods 26, and in conjunction with the connection method of the universal joints 27 at both ends, the placement platform 12 and the workpiece on it can be deflected at a certain angle relative to the rotating disk 24, thereby deflecting the through hole of the workpiece and making it coaxial with the cleaning mechanism 3 and the conical cover 16, which facilitates the cleaning and collection of casting sand.

[0039] Reference Figure 2 , Figure 3 and Figure 4The cleaning mechanism 3 in this embodiment includes a sliding seat 31, a second lead screw motor 32, a first drive motor 33, a mounting cylinder 34, a cleaning column 35, a cleaning blade 36, a cleaning adjustment assembly 4, and a vibration cleaning assembly 5. The sliding seat 31 is slidably mounted on the upper end of the mounting frame 11 along the length of the frame 1. The second lead screw motor 32 is bolted to the upper end of the mounting frame 11, and its output end is threadedly connected to the lower end of the sliding seat 31. The mounting cylinder 34 is fixedly mounted on the side wall of the sliding seat 31 near the placement platform 12. The cleaning column 35 is rotatably mounted on the end of the mounting cylinder 34 away from the sliding seat 31. The first drive motor 33 is bolted to the inner wall of the mounting cylinder 34 near the sliding seat 31, and its output end is fixedly connected to the end of the cleaning column 35 near the sliding seat 31. The cleaning blade 36 is lifted and installed on the outer peripheral wall of the cleaning column 35 away from the sliding seat 31. The cleaning adjustment assembly 4 is installed inside the cleaning column 35. The vibration cleaning assembly 5 is mounted on the sliding seat 31.

[0040] The first drive motor 33 is started, and the output end of the first drive motor 33 rotates, driving the cleaning column 35 to rotate. The rotation of the cleaning column 35 drives the cleaning blade 36 to rotate. Then, the second lead screw motor 32 is started, and the output end of the second lead screw motor 32 rotates, driving the sliding seat 31 to move along the length direction of the frame 1. The movement of the sliding seat 31 drives the mounting cylinder 34, the cleaning column 35 and the cleaning blade 36 to move, thereby driving the cleaning blade 36 to scrape and clean the inner peripheral wall of the through hole. In this embodiment, the cleaning blade 36 is arranged in four groups at intervals. Four groups are a preferred embodiment of this application, but other groups can also be set. The side walls at both ends of the four groups of cleaning blades 36 are provided with cleaning spikes. The cleaning spikes on the side walls at both ends can actively probe and scrape the right-angle step corner at the diameter change of the stepped through hole, thereby ensuring that the entire inner surface of the stepped through hole can be effectively cleaned, improving the integrity and efficiency of sand removal of castings with complex internal cavity structures.

[0041] Reference Figure 3 and Figure 4To adjust the extension length of the cleaning blade 36, the cleaning adjustment assembly 4 in this embodiment includes a third cylinder 41, a moving plate 42, an adjusting cylinder 43, a conical adjusting head 44, and a first spring 45. Two sets of third cylinders 41 are symmetrically arranged, and both sets are horizontally fixedly installed on the inner wall of the mounting cylinder 34 near the sliding seat 31. The moving plate 42 is welded to the telescopic ends of the two sets of third cylinders 41. A sliding groove 46 is provided inside the cleaning column 35, and the adjusting cylinder 43 is slidably installed in the sliding groove 46, with its end near the sliding seat 31 aligned with... The movable plate 42 is fixedly connected, and the conical adjusting head 44 is fixedly installed at the end of the adjusting cylinder 43 away from the movable plate 42 and slidably installed in the sliding groove 46. The cleaning blade 36 is provided with an inclined surface at the end near the conical adjusting head 44. When the conical adjusting head 44 slides against the inclined surface, the cleaning blade 36 can be raised and lowered. Two sets of first springs 45 are symmetrically arranged. Both sets of first springs 45 are installed between the cleaning blade 36 and the cleaning column 35, and one end is fixedly connected to the end of the cleaning blade 36 near the inner wall of the cleaning column 35, and the other end is fixedly connected to the inner wall of the cleaning column 35.

[0042] Two sets of third cylinders 41 are activated. The telescopic ends of the two sets of third cylinders 41 move synchronously, driving the moving plate 42 to move. The moving plate 42 drives the adjusting cylinder 43 to slide horizontally in the sliding groove 46 of the cleaning column 35. The sliding of the adjusting cylinder 43 drives the tapered adjusting head 44 at the end to move horizontally. When the tapered adjusting head 44 slides and abuts against the inclined surface at the end of the cleaning blade 36, it can force the cleaning blade 36 to overcome the elastic force of the first spring 45 and extend outward. When the tapered adjusting head 44 moves in the opposite direction and disengages from the abutment, the elastic force of the first spring 45 can pull the cleaning blade 36 to retract inward, thereby achieving precise, stable and synchronous control of the working radius of the cleaning blade 36. This enables the cleaning of cleaning holes, cross holes with inconsistent hole diameters and tapered through holes, and adapts to through holes of different diameters within a certain range, enhancing the versatility of the device.

[0043] Knife 36 can be used as a reference for the staircase. Figure 2 and Figure 3To clean the casting sand adhering to the inner wall of the through hole using vibration, the vibration cleaning assembly 5 in this embodiment includes a second drive motor 51, a second spring 52, a rotating plate 53, a vibration plate 54, a first protrusion 55, and a second protrusion 56. The second drive motor 51 is bolted to the side wall of the sliding seat 31 at the end away from the first drive motor 33, and its output end passes through the sliding seat 31. The rotating plate 53 is rotatably mounted on the side wall of the sliding seat 31 at the end away from the second drive motor 51 and is fixedly connected to the output end of the second drive motor 51. A moving groove 57 is provided in the sliding seat 31, and the vibration plate 54 is slidably mounted. Inside the moving groove 57, the end away from the second drive motor 51 is fixedly connected to the end of the mounting cylinder 34 away from the cleaning column 35. One end of the second spring 52 is fixedly connected to the inner bottom wall of the moving groove 57, and the other end is fixedly connected to the end of the excitation plate 54 near the sliding seat 31. The first protrusion 55 is welded to the rotating plate 53 near the first drive motor 33, and the second protrusion 56 is welded to the excitation plate 54 near the first drive motor 33. When the first protrusion 55 and the second protrusion 56 slide against each other, the second protrusion 56 can drive the mounting cylinder 34 to reciprocate along the length direction of the cleaning column 35.

[0044] When the second drive motor 51 is started, its output rotates, causing the rotating plate 53 to rotate. The first protrusion 55 on the rotating plate 53 rotates with the rotating plate 53 and periodically slides against the second protrusion 56 on the vibrating plate 54, thereby pushing the vibrating plate 54 to slide within the moving groove 57 against the tension of the second spring 52. When the first protrusion 55 disengages from the second protrusion 56, the tension of the second spring 52 will cause the vibrating plate 54 to return to its original position. The reciprocating sliding of the vibrating plate 54 drives the mounting cylinder 34 to reciprocate, and the reciprocating movement of the mounting cylinder 34 drives the cleaning column 35 and the cleaning blade 36 to reciprocate. The movement causes the cleaning blade 36 to reciprocate linearly with a specific frequency and amplitude, resulting in axial hammering vibration while the cleaning blade 36 rotates and scrapes, effectively breaking the adhesive layer and significantly improving the cleaning ability for stubborn casting sand. In this embodiment, the second spring 52 is symmetrically arranged in four groups. Four groups are a preferred embodiment of this application, but other numbers of groups can also be used. In this embodiment, the first protrusion 55 and the second protrusion 56 are arranged in six groups at intervals, and the six groups of first protrusion 55 and second protrusion 56 are circumferentially distributed on the side of the rotating plate 53 and the excitation plate 54 that are close to each other.

[0045] Reference Figure 2 and Figure 3Since there may be sand core blockage or large pieces of adhesive inside the through hole, a conical drill bit 6 is fixedly installed at the end of the cleaning column 35 away from the first drive motor 33 in this embodiment. When cleaning the foundry sand, the conical drill bit 6 at the end of the cleaning column 35 rotates and vibrates axially with the cleaning column 35. When encountering sand core blockage or large pieces of adhesive inside the through hole, the rotating conical drill bit 6 can perform preliminary drilling and crushing, creating conditions for the subsequent circumferential cleaning of the cleaning cutter 36 and improving the device's ability to handle severe blockages.

[0046] Reference Figure 1 In this embodiment, the upper end of the frame 1 is hinged to an inclined platform 7, and the mounting frame 11 and the placement platform 12 are both located at the upper end of the inclined platform 7. The lower end of the frame 1 away from the negative pressure vacuum cleaner 13 is rotatably mounted with a second electric telescopic rod 71. The telescopic end of the second electric telescopic rod 71 is rotatably connected to the lower end of the inclined platform 7. When cleaning the casting sand of the workpiece, the second electric telescopic rod 71 is activated, and the telescopic end of the second electric telescopic rod 71 moves to drive the inclined platform 7 to rise. Since the mounting end of the second electric telescopic rod 71 is rotatably mounted at the lower end of the frame 1, and the telescopic end is rotatably connected to the lower end of the inclined platform 7, the telescopic end of the second electric telescopic rod 71 can make the inclined platform 7 rotate around its hinge point with the frame 1. This changes the tilt angle of the tilting table 7, causing the mounting bracket 11, the placement table 12, and the workpiece on the tilting table 7 to tilt. Gravity helps the loosened casting sand in the hole to flow towards the opening, facilitating collection by the negative pressure vacuum cleaner 13. In addition, for some complex workpieces, tilting at a certain angle may be more conducive to the effective cleaning of various parts of the inner cavity, enhancing the process adaptability of the device. In this embodiment, the second electric telescopic rod 71 is symmetrically arranged in two sets. Two sets are a preferred embodiment of this application, but other numbers of sets can also be used.

[0047] Reference Figure 2 and Figure 4 To visually monitor the cleaning status of the inner wall, a vision sensor 8 is embedded in the outer peripheral wall of the cleaning column 35 near the cleaning blade 36 in this embodiment. After the casting sand adhering to the inner peripheral wall of the through hole is cleaned, the second lead screw motor 32 and the first drive motor 33 are started. The output end of the second lead screw motor 32 rotates, driving the sliding seat 31 to move. The movement of the sliding seat 31 drives the cleaning column 35 and the vision sensor 8 to move. The rotation of the first drive motor 33 drives the cleaning column 35 and the vision sensor 8 to rotate, thereby obtaining an image of the inner peripheral wall of the workpiece through hole, visually monitoring the cleaning status of the inner wall, providing a basis for process optimization and quality control, and avoiding over-cleaning or under-cleaning. In this embodiment, two sets of vision sensors 8 are symmetrically arranged. Two sets are a preferred method in this embodiment, but other sets can also be used.

[0048] The implementation principle of a sand casting post-molding sand removal device according to an embodiment of this application is as follows: Two sets of third cylinders 41 are activated. The telescopic ends of the two sets of third cylinders 41 move synchronously, driving the moving plate 42 to move. The moving plate 42 moves, driving the adjusting cylinder 43 to slide horizontally in the sliding groove 46 of the cleaning column 35. The sliding of the adjusting cylinder 43 drives the tapered adjusting head 44 at the end to move horizontally. When the tapered adjusting head 44 slides and abuts against the inclined surface at the end of the cleaning knife 36, it can force the cleaning knife 36 to overcome the elastic force of the first spring 45 and extend outward. When the tapered adjusting head 44 moves in the opposite direction and disengages from the abutment, the elastic force of the first spring 45 can pull the cleaning knife 36 to retract inward, thereby achieving precise, stable and synchronous control of the working radius of the cleaning knife 36, so that the cleaning knife 36 can adapt to through holes of different diameters within a certain range. The second drive motor 51 is started, and the output end of the second drive motor 51 rotates, driving the rotating plate 53 to rotate. The first protrusion 55 on the rotating plate 53 rotates with the rotating plate 53 and periodically slides against the second protrusion 56 on the excitation plate 54, thereby pushing the excitation plate 54 to slide in the moving groove 57 against the tension of the second spring 52. When the first protrusion 55 and the second protrusion 56 disengage, the tension of the second spring 52 will reset the excitation plate 54. The reciprocating sliding of the excitation plate 54 drives the mounting cylinder 34 to reciprocate. The reciprocating movement of the mounting cylinder 34 drives the cleaning column 35 and the cleaning blade 36 to reciprocate, thereby giving the cleaning blade 36 a linear reciprocating excitation with a specific frequency and amplitude, which improves the cleaning ability of stubborn casting sand. The conical drill bit 6 at the end of the cleaning column 35 rotates and vibrates axially along with the cleaning column 35. When encountering sand core blockage or large pieces of adhesive inside the through hole, the rotating conical drill bit 6 can perform preliminary drilling and crushing, improving the device's ability to handle severe blockages. The second lead screw motor 32 is started and the first drive motor 33 is started. The output end of the second lead screw motor 32 rotates, causing the sliding seat 31 to move. The movement of the sliding seat 31 causes the cleaning column 35 and the vision sensor 8 to move. The first drive motor 33 rotates, causing the cleaning column 35 and the vision sensor 8 to rotate, thereby intuitively monitoring the cleaning status of the inner wall and avoiding over-cleaning or under-cleaning.

[0049] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] The above are all optional 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 device for handling sand after sand casting, characterized in that: The device includes a frame (1), with an mounting frame (11), a placement platform (12), and a negative pressure vacuum cleaner (13) at the upper end of the frame (1). The placement platform (12) is located between the mounting frame (11) and the negative pressure vacuum cleaner (13). An mounting plate (14) is slidably mounted on the upper end of the frame (1) along the length direction and is located between the placement platform (12) and the negative pressure vacuum cleaner (13). A first cylinder (15) is horizontally mounted on the upper end of the frame (1), and its telescopic end is fixedly connected to the mounting plate (14). A conical cover (16) is mounted on the upper end of the mounting plate (14) and is connected to the suction end of the negative pressure vacuum cleaner (13). A clamping adjustment assembly (2) for stabilizing and adjusting the position of the workpiece is mounted on the placement platform (12). A cleaning mechanism (3) for cleaning the casting sand adhering to the inner circumferential wall of the workpiece through hole is mounted on the mounting frame (11).

2. The sand removal treatment device according to claim 1, characterized in that: The clamping and adjusting assembly (2) includes a second cylinder (21), a sliding table (22), a first lead screw motor (23), a rotating component, and a deflecting component. Two sets of the second cylinders (21) are symmetrically arranged, and both sets of the second cylinders (21) are horizontally arranged at the upper end of the placement table (12). The sliding table (22) is slidably arranged at the upper end of the frame (1) along the width direction of the frame (1) and located at the lower end of the placement table (12). The first lead screw motor (23) is arranged at the upper end of the frame (1), and its output end is threadedly connected to the lower end of the sliding table (22). The rotating component and the deflecting component are both arranged on the sliding table (22) and are used to rotate and deflect the workpiece on the placement table (12), respectively.

3. The sand removal treatment device after sand casting according to claim 2, characterized in that: The rotating component includes a rotating disk (24) and a rotating cylinder (25). The rotating disk (24) is rotatably disposed on the upper end of the sliding table (22) and located at the lower end of the placement platform (12). The rotating cylinder (25) is disposed on the sliding table (22) and its output end is fixedly connected to the rotating disk (24).

4. The sand removal treatment device after sand casting as described in claim 3, characterized in that: The deflecting component includes a first electric telescopic rod (26) and a universal joint (27). Two sets of the universal joint (27) are symmetrically arranged. The two sets of universal joints (27) are respectively located at the upper end of the rotating disk (24) and the lower end of the placement platform (12). The first electric telescopic rod (26) is vertically arranged between the two sets of universal joints (27), and the mounting end and telescopic end are respectively fixedly connected to the two sets of universal joints (27). Four sets of the deflecting component are symmetrically arranged. The four sets of the deflecting component are located at the four corners of the lower end of the placement platform (12).

5. The sand removal treatment device according to claim 1, characterized in that: The cleaning mechanism (3) includes a sliding seat (31), a second lead screw motor (32), a first drive motor (33), a mounting cylinder (34), a cleaning column (35), a cleaning blade (36), a cleaning adjustment assembly (4), and a vibration cleaning assembly (5). The sliding seat (31) is slidably disposed on the upper end of the mounting frame (11) along the length direction of the frame (1). The second lead screw motor (32) is disposed on the upper end of the mounting frame (11), and its output end is threadedly connected to the lower end of the sliding seat (31). The mounting cylinder (34) is disposed on the side wall of the sliding seat (31) near the placement platform (12). The cleaning column (35) is rotatably disposed on the mounting cylinder. (34) At the end away from the sliding seat (31), the first drive motor (33) is disposed on the inner wall of the mounting cylinder (34) near the sliding seat (31), and the output end is fixedly connected to the end of the cleaning column (35) near the sliding seat (31). The cleaning blade (36) is raised and lowered on the outer peripheral wall of the cleaning column (35) away from the sliding seat (31). The cleaning adjustment component (4) is disposed inside the cleaning column (35) for adjusting the extension length of the cleaning blade (36). The vibration cleaning component (5) is disposed on the sliding seat (31) for vibrating and cleaning the adhering casting sand with the cleaning blade (36).

6. The sand removal treatment device according to claim 5, characterized in that: The cleaning adjustment assembly (4) includes a third cylinder (41), a moving plate (42), an adjusting cylinder (43), a conical adjusting head (44), and a first spring (45). Two sets of the third cylinders (41) are symmetrically arranged, and both sets are horizontally fixed on the inner wall of the mounting cylinder (34) near the sliding seat (31). The moving plate (42) is located on the telescopic ends of the two sets of third cylinders (41). A sliding groove (46) is provided inside the cleaning column (35) for the adjusting cylinder (43) to slide horizontally within the cleaning column (35). The adjusting cylinder (43) is slidably disposed within the sliding groove (46), and its end near the sliding seat (31) is connected to the moving plate (45). The moving plate (42) is fixedly connected. The conical adjusting head (44) is located at the end of the adjusting cylinder (43) away from the moving plate (42) and is slidably located in the sliding groove (46). The cleaning blade (36) is provided with an inclined surface at the end near the conical adjusting head (44). When the conical adjusting head (44) slides against the inclined surface, the cleaning blade (36) can be raised and lowered. Two sets of first springs (45) are symmetrically arranged. Both sets of first springs (45) are located between the cleaning blade (36) and the cleaning column (35). One end is fixedly connected to the end of the cleaning blade (36) near the inner wall of the cleaning column (35), and the other end is fixedly connected to the inner wall of the cleaning column (35).

7. A sand removal treatment device according to claim 5, characterized in that: The vibration cleaning assembly (5) includes a second drive motor (51), a second spring (52), a rotating plate (53), a vibration plate (54), a first protrusion (55), and a second protrusion (56). The second drive motor (51) is disposed on the side wall of the sliding seat (31) away from the first drive motor (33), and its output end passes through the sliding seat (31). The rotating plate (53) is rotatably disposed on the side wall of the sliding seat (31) away from the second drive motor (51), and is fixedly connected to the output end of the second drive motor (51). A moving groove (57) is provided in the sliding seat (31), and the vibration plate (54) is slidably disposed in the moving groove (57) away from the second drive motor. One end of (51) is fixedly connected to the end of the mounting cylinder (34) away from the cleaning column (35). One end of the second spring (52) is fixedly connected to the inner bottom wall of the moving groove (57), and the other end is fixedly connected to the end of the excitation plate (54) near the sliding seat (31). The first protrusion (55) is disposed on the side of the rotating plate (53) near the first drive motor (33), and the second protrusion (56) is disposed on the side of the excitation plate (54) near the first drive motor (33). When the first protrusion (55) and the second protrusion (56) slide against each other, the second protrusion (56) can drive the mounting cylinder (34) to reciprocate along the length direction of the cleaning column (35).

8. A sand removal treatment device according to claim 5, characterized in that: A tapered drill bit (6) is provided at the end of the cleaning column (35) away from the first drive motor (33).

9. A sand removal treatment device after sand casting as described in claim 1, characterized in that: The upper end of the frame (1) is hinged to a tilting platform (7), and the mounting frame (11) and the placement platform (12) are both located at the upper end of the tilting platform (7). A second electric telescopic rod (71) is rotatably provided at the lower end of the frame (1) away from the negative pressure vacuum cleaner (13). The telescopic end of the second electric telescopic rod (71) is rotatably connected to the lower end of the tilting platform (7).

10. A sand removal treatment device after sand casting as described in claim 5, characterized in that: A visual sensor (8) for observing the cleaning status of the inner wall of the workpiece is embedded in the outer peripheral wall of the cleaning column (35) near the cleaning blade (36).

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