Sand cleaning device and sand cleaning method for casting

Abstract

The invention discloses a casting sand cleaning device and method, and belongs to the technical field of casting production, the casting sand cleaning device comprises a mounting frame, a cushioning plate is arranged on the mounting frame, a first rotating shaft is arranged on the cushioning plate, a collecting barrel is arranged at the top end of the first rotating shaft, a vibration motor is arranged in the collecting barrel, and a supporting assembly is used for supporting and limiting a casting. A discharging pipe is arranged on the side wall of the collecting barrel, the collecting box is arranged below the discharging pipe, and a funnel used for receiving materials discharged by the discharging pipe is arranged at the top of the collecting box; and a pushing part is arranged on the first rotating shaft, and the pushing mechanism is used for driving the pushing part to circularly rotate clockwise and anticlockwise, so that the first rotating shaft and the collecting barrel are driven to circularly rotate, and the molding sand in the collecting barrel is thrown out of the discharging pipe and falls into the collecting box. According to the vibration shakeout device, vibration shakeout can be conducted on the heated complex closed cavity ZL114A alloy sand mold casting, so that comprehensive cleaning of residual molding sand of the casting is rapidly achieved, the cleaning speed is increased, and delivery of the casting is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of casting production, and in particular, to a sand cleaning device for castings. In addition, the present application also relates to a sand cleaning method using the sand cleaning device for castings. Background Art

[0002] The information provided in this section is for the purpose of generally presenting the background of the present application. To the extent described in this section, the work of the presently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly admitted to be prior art to the present application.

[0003] ZL114A alloy is a high-strength cast aluminum alloy. It increases the magnesium content on the basis of ZL101A aluminum alloy, thereby improving the strength and casting performance of the alloy, making it more suitable for castings with complex shapes and high strength.

[0004] In actual production, complex closed cavity ZL114A alloy sand castings, due to their complex closed structure, need to be delivered by cleaning the sand after pouring. However, the residual strength of the sand is high and cleaning is very difficult, making it difficult to ensure the delivery of the castings.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] Through research, the inventors found that after the conventional cleaning of the outer molding sand of the complex closed cavity ZL114A alloy sand mold casting is completed, the casting can be heated at medium and low temperatures for a long time to make the residual molding sand in the mold cavity in an unstable state. At this time, the residual molding sand can be quickly and effectively cleaned by vibration sand removal.

[0007] In view of at least one of the above technical problems, the present application provides a sand cleaning device for castings, which can vibrate and remove sand from the heated complex closed cavity ZL114A alloy sand mold castings, so as to quickly and comprehensively clean the residual sand of the castings, greatly reducing the difficulty of cleaning, improving the speed of cleaning, and ensuring the delivery of castings.

[0008] At the same time, the present application provides a sand cleaning method using the sand cleaning device of the casting.

[0009] According to one aspect of the present application, a sand cleaning device for castings is provided, comprising a mounting frame, a collecting bucket, an auxiliary material unloading member, a vibrating motor, a supporting assembly, a pushing mechanism and a collecting box:

[0010] A damping plate is arranged on the mounting frame, a first rotating shaft is arranged on the damping plate, a collecting bucket is arranged at the top of the first rotating shaft, a vibration motor is arranged in the collecting bucket, the vibration motor is connected to a vertically arranged connecting column, a support assembly is arranged at the top of the connecting column, the support assembly is used to support the limited casting, the auxiliary unloading part comprises a limiting cylinder which is narrow at the top and wide at the bottom, and the top of the limiting cylinder is sealed, the top of the limiting cylinder is connected to the top of the connecting column, the side wall of the limiting cylinder is located in the collecting bucket and has a gap with the side wall of the collecting bucket, the vibration motor is used to drive the connecting column, the support assembly, the auxiliary unloading part and the casting to vibrate, so as to vibrate and remove the residual molding sand on the casting, the auxiliary unloading part is used to receive the fallen molding sand through the side wall and make the molding sand fall into the collecting bucket, the side wall of the collecting bucket is provided with a discharge pipe, the collecting box is arranged below the discharge pipe, and a funnel for receiving the discharge from the discharge pipe is provided on the top of the collecting box;

[0011] A pushing member is arranged on the first rotating shaft, and a pushing mechanism is arranged on the shock-absorbing plate. The pushing mechanism is used to drive the pushing member to perform clockwise and counterclockwise cyclic rotation, thereby driving the first rotating shaft and the collecting barrel to perform cyclic rotation so as to throw the molding sand in the collecting barrel out of the discharge pipe and drop it into the collecting box.

[0012] In some embodiments of the present application, a plurality of support assemblies are arranged in a circular array along the axis of the connecting column, and the support assemblies include a support member, a first support plate and a compression spring. The support member is arranged at the top end of the auxiliary blanking member, and the support member is used to support the casting. The bottom end of the compression spring is connected to the side wall of the auxiliary blanking member, and the first support plate is arranged at the top end of the compression spring. The compression spring is used to provide an elastic force to push the first support plate vertically upward, so that the first support plate supports and cushions the casting.

[0013] In some embodiments of the present application, the support assembly also includes a second support plate, a limit plate and a locking piece. The second support plate is movably arranged in a guide slot hole preset in the first support plate. The first support plate and the second support plate are higher than the height of the support piece when they are not in operation and are in a static state. The limit plate is arranged on the second support plate and is perpendicular to the second support plate. The second support plate is used to move back and forth along the radial direction of the collection barrel, thereby driving the limit plate to press and limit the side wall of the casting. The locking piece is used to pass through the locking screw hole preset on the first support plate and then tighten the second support plate to lock and limit the second support plate with the first support plate.

[0014] In some embodiments of the present application, the side wall where the limiter abuts against the casting is a raised arc-shaped structure, and a rubber pad is provided on the side wall; the top of the limiter is a raised arc-shaped structure, and the top surfaces of the limiter and the first support plate and the second support plate are all provided with rubber pads.

[0015] In some embodiments of the present application, two limit slots are symmetrically provided on the pushing member along its radial direction, and the pushing mechanism includes a motor, a gear transmission assembly, and a first rotating assembly and a second rotating assembly respectively arranged on both sides of the shock-absorbing plate, the motor is connected to the first rotating assembly, the motor is used to drive the first rotating assembly to rotate, the gear transmission assembly is arranged at the bottom of the shock-absorbing plate, the gear transmission assembly is used to connect the first rotating assembly with the second rotating assembly, so that the first rotating assembly drives the second rotating assembly to rotate synchronously in the opposite direction through the gear transmission assembly, the first rotating assembly is used to slide into the limit slot on one side when rotating and push the pushing member to rotate a certain angle in the first direction and then disengage from the limit slot, the second rotating assembly is used to slide into the limit slot on the other side when rotating and rotate the pushing member to rotate a certain angle in the second direction and then disengage from the limit slot, the first direction is opposite to the second direction.

[0016] In some embodiments of the present application, the first rotating component and the second rotating component both include a push rod, a rotating rod and a second rotating shaft. The second rotating shaft is vertically arranged at the bottom of one side of the rotating rod. The second rotating shaft is used to connect to a preset connecting bearing on the shock-absorbing plate. The push rod is vertically arranged at the top of the other side of the rotating rod. The rotating rod is used to drive the push rod to rotate, and then the push rod slides into the limiting slot to push the pushing member to rotate. The second rotating shaft of the first rotating component is connected to the output shaft of the motor.

[0017] In some embodiments of the present application, the first rotating component and the second rotating shaft of the second rotating component are connected through a gear transmission assembly, the gear transmission assembly includes a first gear, a gear pair and a second gear, the first gear is arranged on the second rotating shaft of the first rotating component, the second gear is arranged on the second rotating shaft of the second rotating component, the gear pair is connected to the shock-absorbing plate through the gear shaft, and the gear pair is used to connect the first gear and the second gear and make the second gear rotate synchronously with the first gear in the opposite direction.

[0018] In some embodiments of the present application, the shock-absorbing plate is a plate-like structure made of elastic material, the top and bottom surfaces of the shock-absorbing plate are both provided with rubber pads, and a shock-absorbing spring is provided at the bottom of the mounting frame.

[0019] In some embodiments of the present application, the cross-section of the bottom plate of the collecting barrel is a frustum structure, the vibration motor is arranged on the top of the bottom plate of the collecting barrel, and the discharge pipe is arranged at the bottom of the side wall of the collecting barrel.

[0020] In addition, the present application also discloses a casting sand cleaning method, which uses the casting sand cleaning device described above and comprises the following steps:

[0021] S100, complete the pouring of complex closed cavity ZL114A alloy sand castings;

[0022] S200, routine cleaning of casting outer mold sand;

[0023] S300, place the complex closed cavity ZL114A alloy sand casting in a heating furnace, heat it to 450℃±10℃, and keep it warm for 5h~6h;

[0024] S400, complex closed cavity ZL114A alloy sand castings are taken out of the furnace after heating and heat preservation;

[0025] S500, place the complex closed cavity ZL114A alloy sand mold casting on the top of the connecting column and support it with a support assembly, start the vibration motor to vibrate and shake out the sand, and collect the sand through the collection bucket to complete the comprehensive sand removal of the complex closed cavity ZL114A alloy sand mold casting.

[0026] This application has the following beneficial effects:

[0027] The sand cleaning device of the casting of the present application is provided with a vibration motor in the collection barrel, the vibration motor is connected to the connecting column, a support assembly is provided at the top of the connecting column to support and limit the casting, and an auxiliary unloading member of a cylindrical structure with a top seal is also provided at the top of the connecting column. The vibration motor drives the support assembly and the casting to vibrate and remove the sand, and the sand falls into the collection barrel through the auxiliary unloading member, and then is discharged to the collection box through the discharge pipe on the side wall of the collection barrel. At the same time, the collection barrel is also supported by the first rotating shaft, and a pusher is provided on the first rotating shaft. The pusher is driven by the pushing mechanism to rotate clockwise and counterclockwise in a cycle, thereby driving the first rotating shaft and the collection barrel to rotate in a cycle to throw the molding sand in the collection barrel out of the discharge pipe and into the collection box. The sand cleaning work of the casting can be completed quickly and efficiently, and the sand can be collected in a centralized manner in a timely manner, reducing the labor and labor intensity of workers in cleaning.

[0028] The sand cleaning method of the casting of the present application also has the above-mentioned beneficial effects. At the same time, the present application heats the casting for a long time at a medium and low temperature after the conventional cleaning of the outer mold sand of the cast complex closed cavity ZL114A alloy sand mold casting, so that the residual molding sand in the mold cavity is in an unstable state. At this time, the residual molding sand can be quickly and effectively cleaned by vibration sand removal, which greatly reduces the difficulty of sand cleaning of the complex closed cavity ZL114A alloy sand mold casting, effectively improves the efficiency of casting production, and ensures the timely and high-quality delivery of castings.

[0029] Of course, any product implementing this application does not necessarily need to achieve all the advantages described above at the same time. In addition to the purposes, features and advantages described above, this application also has other purposes, features and advantages. The following will further describe this application in detail with reference to the figures. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of the preferred embodiment of the present application;

[0032] Figure 2 It is a structural schematic diagram of the shock absorbing plate part of the preferred embodiment of the present application;

[0033] Figure 3 It is a schematic diagram of the installation of the vibration motor of the preferred embodiment of the present application;

[0034] Figure 4 This is a schematic diagram of the structure of a pusher of a preferred embodiment of the present application;

[0035] Figure 5 is a schematic diagram of the installation of the first rotating assembly of the preferred embodiment of the present application;

[0036] Figure 6 is a schematic diagram of a casting heating time curve of a preferred embodiment of the present application;

[0037] Legend: 1. Mounting frame; 2. Collecting bucket; 3. Discharging pipe; 4. Auxiliary unloading member; 5. Support member; 6. First supporting plate; 7. Second supporting plate; 8. Limiting plate; 9. Compression spring; 10. First rotating shaft; 11. Pushing member; 12. Limiting slot; 13. First rotating assembly; 14. Second rotating assembly; 15. Push rod; 16. Rotating rod; 17. Shock-absorbing plate; 18. First gear; 19. Motor; 20. Gear pair; 21. Second gear; 22. Vibration motor; 23. Second rotating shaft; 24. Connecting column. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below in conjunction with the accompanying drawings, but the present application can be implemented in a variety of different ways defined and covered below.

[0039] Figure 1 It is a schematic diagram of the overall structure of the preferred embodiment of the present application; Figure 2 It is a structural schematic diagram of the shock absorbing plate part of the preferred embodiment of the present application; Figure 3 It is a schematic diagram of the installation of the vibration motor of the preferred embodiment of the present application;

[0040] Figure 4 This is a schematic diagram of the structure of a pusher of a preferred embodiment of the present application; Figure 5 is a schematic diagram of the installation of the first rotating assembly of the preferred embodiment of the present application; Figure 6 It is a schematic diagram of the casting heating time curve of the preferred embodiment of the present application.

[0041] A sand cleaning device for castings, comprising a mounting frame 1, a collecting bucket 2, an auxiliary material unloading member 4, a vibrating motor 22, a supporting assembly, a pushing mechanism and a collecting box:

[0042] The mounting frame 1 is provided with a damping plate 17, and the damping plate 17 is provided with a first rotating shaft 10. The collecting barrel 2 is provided at the top of the first rotating shaft 10, and the vibration motor 22 is provided in the collecting barrel 2. The vibration motor 22 is connected to a vertically provided connecting column 24, and a supporting assembly is provided at the top of the connecting column 24. The supporting assembly is used to support the limiting casting, and the auxiliary unloading part 4 includes a limiting cylinder with a narrow upper part and a wide lower part, and the top of the limiting cylinder is sealed, and the top of the limiting cylinder is connected to the top of the connecting column 24. The limiting casting is provided with a damping plate 17, and the first rotating shaft 10 is provided with a first rotating shaft 10. The side wall of the cylinder is located in the collecting barrel 2 and has a gap with the side wall of the collecting barrel 2. The vibration motor 22 is used to drive the connecting column 24, the supporting assembly, the auxiliary material discharge part 4 and the casting to vibrate, so as to vibrate and remove the residual molding sand on the casting. The auxiliary material discharge part 4 is used to receive the fallen molding sand through the side wall and make the molding sand fall into the collecting barrel 2. The side wall of the collecting barrel 2 is provided with a discharge pipe 3, the collecting box is arranged below the discharge pipe 3, and the top of the collecting box is provided with a funnel for receiving the discharge of the discharge pipe 3.

[0043] A pushing member 11 is provided on the first rotating shaft 10, and a pushing mechanism is provided on the shock-absorbing plate 17. The pushing mechanism is used to drive the pushing member 11 to perform clockwise and counterclockwise cyclic rotation, thereby driving the first rotating shaft 10 and the collecting barrel 2 to perform cyclic rotation so as to throw the molding sand in the collecting barrel 2 out of the discharge pipe 3 and drop it into the collecting box.

[0044] The meaning of "pushing member 11" here refers to the structure connected to the first rotating shaft 10. In some embodiments, the pushing member 11 is a plate-like structure, and the pushing member 11 has two limiting slots 12 symmetrically opened along its radial direction, and the limiting slots 12 are connected to the side walls of the pushing member 11. The side walls of the pushing member 11 are chamfered at the opening of the limiting slots 12 so that the push rod 15 can slide into the limiting slots 12 more smoothly.

[0045] The sand cleaning device of the casting of the present application is provided with a vibration motor 22 in the collection barrel 2, the vibration motor 22 is connected to the connecting column 24, a support assembly is provided at the top of the connecting column 24 to support and limit the casting, and an auxiliary unloading member 4 of a cylindrical structure with a top seal is also provided at the top of the connecting column 24. The vibration motor 22 drives the support assembly and the casting to vibrate and remove sand, and the sand falls into the collection barrel 2 through the auxiliary unloading member 4, and then is discharged to the collection box through the discharge pipe 3 on the side wall of the collection barrel 2. At the same time, the collection barrel 2 is also supported by the first rotating shaft 10, and the first rotating shaft 10 is provided with a pusher 11, and the pusher 11 is driven by the push mechanism 11 to perform clockwise and counterclockwise cyclic rotation, thereby driving the first rotating shaft 10 and the collection barrel 2 to rotate cyclically so as to throw the molding sand in the collection barrel 2 out of the discharge pipe 3 and fall into the collection box. The sand cleaning work of the casting can be completed quickly and efficiently, and the sand can be collected in a timely manner, thereby reducing the labor and labor intensity of workers in cleaning.

[0046] Preferably, please refer to Figure 1 As shown, a plurality of support assemblies are arranged in a circular array along the axis of the connecting column 24, and the support assemblies include a support member 5, a first support plate 6 and a compression spring 9. The support member 5 is arranged at the top end of the auxiliary blanking member 4, and the support member 5 is used to support the casting. The bottom end of the compression spring 9 is connected to the side wall of the auxiliary blanking member 4, and the first support plate 6 is arranged at the top end of the compression spring 9. The compression spring 9 is used to provide an elastic force to push the first support plate 6 vertically upward, so that the first support plate 6 supports and cushions the casting.

[0047] It can be understood that when the casting is placed on the support 5, the bottom of the casting is supported by the support 5, and at the same time, the first support plate 6 can provide circumferential limiting support to the outside of the casting, and the first support plate 6 can achieve a buffering effect through the compression spring 9, thereby reducing the direct impact and collision damage to the casting and ensuring smooth vibration and sand removal of the casting.

[0048] Preferably, please refer to Figure 1 , 3 As shown, the support assembly also includes a second support plate 7, a limit plate 8 and a locking piece. The second support plate 7 is movably arranged in a guide slot hole preset in the first support plate 6. The first support plate 6 and the second support plate 7 are higher than the height of the support member 5 in a non-working and static state. The limit plate 8 is arranged on the second support plate 7 and is perpendicular to the second support plate 7. The second support plate 7 is used to reciprocate along the radial direction of the collection barrel 2, thereby driving the limit plate 8 to press and limit the side wall of the casting. The locking piece is used to pass through the locking screw hole preset on the first support plate 6 and then tighten the second support plate 7 to lock and limit the second support plate 7 and the first support plate 6.

[0049] It is understandable that the second support plate 7 can slide inside the first support plate 6 and lock the two together through the locking member, and the second support plate 7 drives the limiting plate 8 to move and adjust the position, thereby achieving support and limiting of the side of the casting, enhancing the limiting stability of the casting, and ensuring the smooth progress of vibration sand falling. At the same time, the position of the limiting plate 8 is adjustable, which is convenient for adapting to the limiting requirements of castings of different sizes and improving the adaptability of the support assembly.

[0050] Optionally, the locking member is a locking bolt, which can cooperate with a locking screw hole preset on the first support plate 6 to tighten the second support plate 7 to complete the locking and limiting of the second support plate 7 and the first support plate 6.

[0051] Preferably, please refer to Figure 1 As shown, the side wall where the limit plate 8 abuts against the casting is a raised arc-shaped structure, and a rubber pad is provided on the side wall; the top of the support member 5 is a raised arc-shaped structure, and the top surfaces of the support member 5 and the first support plate 6 and the second support plate 7 are all provided with rubber pads.

[0052] It is understandable that the top of the support member 5 is set as a convex arc-shaped structure, which can reduce the amount of sand left on the top of the support member 5, facilitate the sand to slide off the top of the support member 5 in time, and reduce the impact of the sand on the casting. At the same time, the top surfaces of the support member 5 and the first support plate 6 and the second support plate 7 are all provided with rubber pads, which can play a protective and buffering role and reduce the damage to the casting.

[0053] Preferably, please refer to Figure 2 , 3 As shown in , 4, two limiting slots 12 are symmetrically provided along the radial direction of the pushing member 11, and the pushing mechanism includes a motor 19, a gear transmission assembly, and a first rotating assembly 13 and a second rotating assembly 14 respectively arranged on both sides of the shock absorbing plate 17, the motor 19 is connected to the first rotating assembly 13, the motor 19 is used to drive the first rotating assembly 13 to rotate, the gear transmission assembly is arranged at the bottom of the shock absorbing plate 17, the gear transmission assembly is used to connect the first rotating assembly 13 with the second rotating assembly 14, so that the first rotating assembly 13 drives the second rotating assembly 14 to rotate synchronously in the opposite direction through the gear transmission assembly, the first rotating assembly 13 is used to slide into the limiting slot 12 on one side when rotating and push the pushing member 11 to rotate in the first direction for a certain angle and then disengage from the limiting slot 12, the second rotating assembly 14 is used to slide into the limiting slot 12 on the other side when rotating and rotate the pushing member 11 in the second direction for a certain angle and then disengage from the limiting slot 12, the first direction is opposite to the second direction.

[0054] It can be understood that the first direction is the same rotation direction as the second rotating component 14 (such as both are clockwise), the second direction is the same rotation direction as the first rotating component 13 (such as both are counterclockwise), and the rotation directions of the first rotating component 13 and the second rotating component 14 are opposite, that is, one is clockwise and the other is counterclockwise, thereby driving the pushing member 11 and the first rotating shaft 10 and the collecting bucket 2 to rotate alternately clockwise and counterclockwise, and the fallen sand at the bottom of the collecting bucket 2 can be thrown out to the collecting box through the discharge pipe 3, which is convenient for timely cleaning and collection of the fallen sand and reduces the cleaning workload of the collecting bucket 2.

[0055] Preferably, please refer to Figure 2 , 3 As shown in Figures 4 and 5, the first rotating component 13 and the second rotating component 14 both include a push rod 15, a rotating rod 16 and a second rotating shaft 23. The second rotating shaft 23 is vertically arranged at the bottom of one side of the rotating rod 16. The second rotating shaft 23 is used to connect with a preset connecting bearing on the shock-absorbing plate 17. The push rod 15 is vertically arranged at the top of the other side of the rotating rod 16. The rotating rod 16 is used to drive the push rod 15 to rotate, and then the push rod 15 slides into the limiting slot 12 to push the pushing member 11 to rotate. The second rotating shaft 23 of the first rotating component 13 is connected to the output shaft of the motor 19.

[0056] It can be understood that the first rotating assembly 13 and the second rotating assembly 14 have the same structure, but the rotation directions of the two are opposite, so that the first rotating assembly 13 drives the pusher 11 to rotate a certain angle in the direction opposite to the first rotating assembly 13 through its push rod 15, and then the first rotating assembly 13 is separated from the pusher 11, and the second rotating assembly 14 starts to contact the pusher 11 and pushes the pusher 11 to rotate a certain angle in the direction opposite to the second rotating assembly 14, so that the pusher 11 can rotate alternately in opposite directions. The circular motion can effectively drive the collection bucket 2 to rotate alternately, so that the fallen sand in the collection bucket 2 is thrown and finally discharged from the discharge pipe 3. In this way, the workload of workers cleaning the collection bucket 2 can be greatly reduced, the work intensity can be effectively reduced, the fallen sand can be prevented from accumulating in the collection bucket 2, and the overall sand cleaning efficiency can be improved.

[0057] Preferably, please refer to Figure 2 , 4As shown in Figure 5, the first rotating component 13 and the second rotating shaft 23 of the second rotating component 14 are connected through a gear transmission component. The gear transmission component includes a first gear 18, a gear pair 20 and a second gear 21. The first gear 18 is arranged on the second rotating shaft 23 of the first rotating component 13, and the second gear 21 is arranged on the second rotating shaft 23 of the second rotating component 14. The gear pair 20 is connected to the shock-absorbing plate 17 through a gear shaft. The gear pair 20 is used to connect the first gear 18 and the second gear 21 and make the second gear 21 rotate synchronously with the first gear 18 in the opposite direction.

[0058] It can be understood that the first rotating assembly 13 and the second rotating assembly 14 are respectively arranged on the top of the shock absorbing plate 17 through the second rotating shaft 23, and the gear rotating assembly is arranged on the bottom of the shock absorbing plate 17 through the gear rotating shaft. The second rotating shaft 23 of the first rotating assembly 13 is connected to the output shaft of the motor 19, so that the movement of the first rotating assembly 13 is transmitted to the second rotating assembly 14 through the gear rotating assembly, and the synchronous reverse rotation of the second rotating assembly 14 and the first rotating assembly 13 is realized. Since there is a large margin for the matching connection between the first gear 18 and the gear pair 20, and between the gear pair 20 and the second gear 21, the influence of vibration is small. With the damping effect of the shock absorbing plate 17, the influence of the operation of the vibration motor 22 on the motor 19 can be effectively reduced, and the working stability and service life of the driving member can be effectively improved.

[0059] Preferably, the shock absorbing plate 17 is a plate-shaped structure made of elastic material, the top and bottom surfaces of the shock absorbing plate 17 are both provided with rubber pads, and the bottom of the mounting frame 1 is provided with a shock absorbing spring.

[0060] It is understandable that the shock-absorbing spring at the bottom of the mounting frame 1 can enhance the shock-absorbing effect of the shock-absorbing plate 17 , and cooperate with the shock-absorbing performance of the shock-absorbing plate 17 itself to effectively reduce the impact on the operation of the motor 19 and ensure the continuous and stable operation of the motor 19 .

[0061] Preferably, please refer to Figure 3 As shown, the cross section of the bottom plate of the collecting barrel 2 is a frustum structure, the vibration motor 22 is arranged on the top of the bottom plate of the collecting barrel 2, and the discharge pipe 3 is arranged at the bottom of the side wall of the collecting barrel 2.

[0062] It can be understood that the bottom plate of the collecting barrel 2 is a structure with a high middle and low surroundings, which can facilitate the falling sand to slide smoothly into the outermost side and then be discharged from the discharge pipe 3. The vibration motor 22 is arranged at the highest position of the bottom plate headquarters of the collecting barrel 2, which can reduce the influence of the falling sand on the operation of the vibration motor 22. Optionally, a protective cylinder is arranged at the bottom of the collecting barrel 2, and the protective cylinder is used to shield and protect the vibration motor 22.

[0063] Preferably, a plurality of discharge pipes 3 are arranged in a circular array, and the plurality of discharge pipes 3 can facilitate the falling sand at various locations at the bottom of the collection barrel 2 to be quickly discharged through different discharge pipes 3 .

[0064] In addition, the present application also discloses a casting sand cleaning method, which uses the casting sand cleaning device described above and comprises the following steps:

[0065] S100, complete the pouring of complex closed cavity ZL114A alloy sand castings;

[0066] S200, routine cleaning of casting outer mold sand;

[0067] S300, place the complex closed cavity ZL114A alloy sand casting in a heating furnace, heat it to 450℃±10℃, and keep it warm for 5h~6h;

[0068] S400, complex closed cavity ZL114A alloy sand castings are taken out of the furnace after heating and heat preservation;

[0069] S500, placing the complex closed cavity ZL114A alloy sand mold casting on the top of the connecting column 24 and supporting it by the support assembly, turning on the vibration motor 22 to vibrate and shake out the sand, and collecting the sand by the collection bucket 2, thus completing the comprehensive sand removal of the complex closed cavity ZL114A alloy sand mold casting.

[0070] The sand cleaning method of the casting of the present application also has the above-mentioned beneficial effects. At the same time, the present application heats the casting for a long time at a medium and low temperature after the conventional cleaning of the outer mold sand of the cast complex closed cavity ZL114A alloy sand mold casting, so that the residual molding sand in the mold cavity is in an unstable state. At this time, the residual molding sand can be quickly and effectively cleaned by vibration sand removal, which greatly reduces the difficulty of sand cleaning of the complex closed cavity ZL114A alloy sand mold casting, effectively improves the efficiency of casting production, and ensures the timely and high-quality delivery of castings.

[0071] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0072] This article uses specific examples to illustrate the principles and implementation methods of this application. The above examples are only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection of this application.

Claims

1. A sand cleaning device for castings, characterized in that: It comprises a mounting frame (1), a collection bucket (2), an auxiliary material unloading component (4), a vibration motor (22), a support assembly, a driving mechanism and a collection box: A damping plate (17) is arranged on the mounting frame (1), a first rotating shaft (10) is arranged on the damping plate (17), a collecting bucket (2) is arranged at the top of the first rotating shaft (10), a vibration motor (22) is arranged in the collecting bucket (2), the vibration motor (22) is connected to a vertically arranged connecting column (24), a support assembly is arranged at the top of the connecting column (24), the support assembly is used to support the limiting casting, the auxiliary unloading part (4) comprises a limiting cylinder which is narrow at the top and wide at the bottom, and the top of the limiting cylinder is sealed, and the top of the limiting cylinder is connected to the top of the connecting column (24). The side wall of the limiting cylinder is located in the collecting barrel (2) and has a gap with the side wall of the collecting barrel (2); the vibration motor (22) is used to drive the connecting column (24), the supporting assembly, the auxiliary material discharge part (4) and the casting to vibrate so as to vibrate and remove the residual molding sand on the casting; the auxiliary material discharge part (4) is used to receive the fallen molding sand through the side wall and make the molding sand fall into the collecting barrel (2); the side wall of the collecting barrel (2) is provided with a discharge pipe (3); the collecting box is arranged below the discharge pipe (3); and the top of the collecting box is provided with a funnel for receiving the discharge of the discharge pipe (3); A pushing member (11) is arranged on the first rotating shaft (10), and a pushing mechanism is arranged on the shock absorbing plate (17). The pushing mechanism is used to drive the pushing member (11) to perform clockwise and counterclockwise cyclic rotation, thereby driving the first rotating shaft (10) and the collecting bucket (2) to perform cyclic rotation so as to throw the molding sand in the collecting bucket (2) out of the discharge pipe (3) and drop it into the collecting box.

2. A casting sand cleaning device according to claim 1, characterized in that: A plurality of support assemblies are arranged in a circular array along the axis of the connecting column (24), and the support assemblies include a support member (5), a first support plate (6) and a compression spring (9). The support member (5) is arranged at the top end of the auxiliary material-cutting member (4), and the support member (5) is used to support the casting. The bottom end of the compression spring (9) is connected to the side wall of the auxiliary material-cutting member (4). The first support plate (6) is arranged at the top end of the compression spring (9), and the compression spring (9) is used to provide an elastic force to push the first support plate (6) vertically upward, so that the first support plate (6) supports and cushions the casting.

3. A casting sand cleaning device according to claim 2, characterized in that: The support assembly further comprises a second support plate (7), a limiting plate (8) and a locking member, wherein the second support plate (7) is movably arranged in a guide slot hole preset in the first support plate (6), and the first support plate (6) and the second support plate (7) are higher than the height of the support member (5) in a non-operating static state, the limiting plate (8) is arranged on the second support plate (7) and is perpendicular to the second support plate (7), the second support plate (7) is used for reciprocating along the radial direction of the collection barrel (2), thereby driving the limiting plate (8) to press and limit the side wall of the casting, and the locking member is used for passing through a locking screw hole preset on the first support plate (6) and then tightening the second support plate (7) to lock and limit the second support plate (7) with the first support plate (6).

4. A casting sand cleaning device according to claim 3, characterized in that: The side wall of the limiting plate (8) abutting against the casting is a convex arc-shaped structure, and a rubber pad is provided on the side wall; the top of the support member (5) is a convex arc-shaped structure, and the top surfaces of the support member (5) and the first support plate (6) and the second support plate (7) are all provided with rubber pads.

5. The sand cleaning device for castings according to claim 1, characterized in that: The push member (11) is provided with two limit slots (12) symmetrically along its radial direction. The push mechanism comprises a motor (19), a gear transmission assembly, and a first rotating assembly (13) and a second rotating assembly (14) respectively arranged on both sides of the shock absorbing plate (17). The motor (19) is connected to the first rotating assembly (13). The motor (19) is used to drive the first rotating assembly (13) to rotate. The gear transmission assembly is arranged at the bottom of the shock absorbing plate (17). The gear transmission assembly is used to connect the first rotating assembly (13) with the second rotating assembly (14). The first rotating assembly (13) drives the second rotating assembly (14) to rotate synchronously in the opposite direction through the gear transmission assembly. The first rotating assembly (13) is used to slide into the limiting slot (12) on one side when rotating and push the pushing member (11) to rotate in a first direction by a certain angle and then disengage from the limiting slot (12). The second rotating assembly (14) is used to slide into the limiting slot (12) on the other side when rotating and push the pushing member (11) to rotate in a second direction by a certain angle and then disengage from the limiting slot (12). The first direction is opposite to the second direction.

6. A casting sand cleaning device according to claim 5, characterized in that: The first rotating assembly (13) and the second rotating assembly (14) both include a push rod (15), a rotating rod (16) and a second rotating shaft (23). The second rotating shaft (23) is arranged at the bottom of one side of the rotating rod (16) in the vertical direction. The second rotating shaft (23) is used to connect with a preset connecting bearing on the shock absorbing plate (17). The push rod (15) is arranged at the top of the other side of the rotating rod (16) in the vertical direction. The rotating rod (16) is used to drive the push rod (15) to rotate, and then the push rod (15) slides into the limiting slot (12) to push the pushing member (11) to rotate. The second rotating shaft (23) of the first rotating assembly (13) is connected to the output shaft of the motor (19).

7. A casting sand cleaning device according to claim 6, characterized in that: The first rotating assembly (13) and the second rotating shaft (23) of the second rotating assembly (14) are connected via a gear transmission assembly, the gear transmission assembly comprising a first gear (18), a gear pair (20) and a second gear (21), the first gear (18) being arranged on the second rotating shaft (23) of the first rotating assembly (13), the second gear (21) being arranged on the second rotating shaft (23) of the second rotating assembly (14), the gear pair (20) being connected to the shock absorbing plate (17) via a gear shaft, the gear pair (20) being used to connect the first gear (18) and the second gear (21) and to enable the second gear (21) to rotate synchronously with the first gear (18) in opposite directions.

8. A casting sand cleaning device according to any one of claims 5 to 7, characterized in that: The shock absorbing plate (17) is a plate-shaped structure made of elastic material. The top and bottom surfaces of the shock absorbing plate (17) are both provided with rubber pads, and the bottom of the mounting frame (1) is provided with a shock absorbing spring.

9. A casting sand cleaning device according to claim 1, characterized in that: The cross section of the bottom plate of the collecting barrel (2) is a frustum structure, the vibration motor (22) is arranged on the top of the bottom plate of the collecting barrel (2), and the discharge pipe (3) is arranged at the bottom of the side wall of the collecting barrel (2).

10. A casting sand cleaning method, characterized in that: A sand cleaning device for a casting as claimed in any one of claims 1 to 9 is used, comprising the following steps: S100, complete the pouring of complex closed cavity ZL114A alloy sand castings; S200, routine cleaning of casting outer mold sand; S300, place the complex closed cavity ZL114A alloy sand casting in a heating furnace, heat it to 450℃±10℃, and keep it warm for 5h~6h; S400, complex closed cavity ZL114A alloy sand castings are taken out of the furnace after heating and heat preservation; S500, placing the complex closed cavity ZL114A alloy sand mold casting on the top of the connecting column (24) and supporting it with a support assembly, turning on the vibration motor (22) to vibrate and remove the sand, and collecting the sand with the collection bucket (2), thus completing the comprehensive removal of the sand from the complex closed cavity ZL114A alloy sand mold casting.

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