Sand cleaning device and sand cleaning method for castings

Abstract

The application discloses a sand cleaning device and method for castings, and belongs to the technical field of castings production. The device comprises a mounting frame, a buffer plate arranged on the mounting frame, a first rotating shaft arranged on the buffer plate, a collecting barrel arranged at the top end of the first rotating shaft, a vibrating motor arranged in the collecting barrel, a supporting assembly for supporting and limiting the castings, a side wall of the collecting barrel is provided with a discharge pipe, a collecting box is arranged below the discharge pipe, and a funnel for receiving the discharge of the discharge pipe is arranged at the top of the collecting box. A pushing member is arranged on the first rotating shaft, a pushing mechanism is used for driving the pushing member to rotate clockwise and counterclockwise in cycles, thereby driving the first rotating shaft and the collecting barrel to rotate in cycles to shake the sand in the collecting barrel out of the discharge pipe and into the collecting box. The application can shake and drop the sand of the ZL114A alloy sand mold castings with complex closed cavities after heating, so as to quickly realize the comprehensive cleaning of the residual sand of the castings, improve the cleaning speed, and ensure the delivery of the castings.

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 this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this 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 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 heated complex closed cavity ZL114A alloy sand mold castings to quickly and comprehensively clean the residual molding sand of the castings, greatly reducing the difficulty of cleaning, increasing 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 collection bucket, an auxiliary material unloading member, a vibration motor, a support assembly, a pushing mechanism, and a collection box:

[0010] The mounting frame is provided with a shock-absorbing plate, the shock-absorbing plate is provided with a first rotating shaft, a collecting barrel is arranged at the top end of the first rotating shaft, a vibration motor is arranged in the collecting barrel, the vibration motor is connected with a vertically arranged connecting column, a supporting assembly is arranged at the top end of the connecting column, the supporting assembly is used for supporting the limited casting, the auxiliary discharging part includes a limiting cylinder which is narrow at the top and wide at the bottom, the top of the limiting cylinder is sealed, the top of the limiting cylinder is connected with the top end of the connecting column, the side wall of the limiting cylinder is located in the collecting barrel and has a gap with the side wall of the collecting barrel, the vibration motor is used for driving the connecting column, the supporting assembly, the auxiliary discharging part and the casting to vibrate, so as to vibrate and fall off the residual sand in the casting, the auxiliary discharging part is used for receiving the fallen sand through the side wall and making the sand fall into the collecting barrel, the side wall of the collecting barrel is provided with a discharging pipe, and a collecting box is arranged below the discharging pipe, and the collecting box is provided with a funnel at the top for receiving the discharging pipe.

[0011] The first rotating shaft is provided with a pushing piece, a pushing mechanism is arranged on the shock-absorbing plate, the pushing mechanism is used for driving the pushing piece to rotate clockwise and counterclockwise in cycles, thereby driving the first rotating shaft and the collecting barrel to rotate in cycles to throw the sand in the collecting barrel from the discharging pipe and fall into the collecting box.

[0012] In some embodiments of the present application, the supporting assembly is arranged in multiple groups along the axis of the connecting column in an annular array, the supporting assembly includes a support, a first supporting plate and a compression spring, the support is arranged at the top end of the auxiliary discharging part, the support is used for supporting the casting, the bottom end of the compression spring is connected to the side wall of the auxiliary discharging part, the first supporting plate is arranged at the top end of the compression spring, the compression spring is used to provide an elastic force for pushing the first supporting plate vertically upward, thereby supporting and shock-absorbing the casting.

[0013] In some embodiments of the present application, the supporting assembly further includes a second supporting plate, a limiting plate and a locking piece, the second supporting plate is movably arranged in a pre-set guide slot hole of the first supporting plate, the height of the first supporting plate and the second supporting plate in the non-working and resting state is higher than that of the support, the limiting plate is arranged on the second supporting plate and perpendicular to the second supporting plate, the second supporting plate is used for reciprocating movement along the radial direction of the collecting barrel, thereby driving the limiting plate to compress and limit the side wall of the casting, and the locking piece is used for penetrating through a pre-set locking screw hole of the first supporting plate to tightly press the second supporting plate, so as to lock and limit the second supporting plate and the first supporting plate.

[0014] In some embodiments of the present application, the side wall of the limiting piece abutting against the casting is a convex arc surface structure, and a rubber pad is arranged on the side wall; the top of the limiting piece is a convex arc surface structure, and rubber pads are arranged on the top surfaces of the limiting piece, the first supporting plate and the second supporting plate.

[0015] In some embodiments of the present application, two limiting grooves are formed on the pushing member along its radial symmetry, the pushing mechanism comprises 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 with 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 and the second rotating assembly, so that the first rotating assembly drives the second rotating assembly to rotate reversely synchronously through the gear transmission assembly, the first rotating assembly is used to slide into the limiting groove on one side when rotating, and then the pushing member is pushed to rotate by a certain angle in the first direction and then the pushing member is separated from the limiting groove, the second rotating assembly is used to slide into the limiting groove on the other side when rotating, and then the pushing member is pushed to rotate by a certain angle in the second direction and then the pushing member is separated from the limiting groove, and the first direction is opposite to the second direction.

[0016] In some embodiments of the present application, the first rotating assembly and the second rotating assembly each comprise a push rod, a rotating rod and a second rotating shaft, the second rotating shaft is arranged at the bottom of one side of the rotating rod along the vertical direction, the second rotating shaft is used to be connected with the connecting bearing prearranged on the shock-absorbing plate, the push rod is arranged at the top of the other side of the rotating rod along the vertical direction, the rotating rod is used to drive the push rod to rotate, and then the push rod slides into the limiting groove to push the pushing member to rotate, and the second rotating shaft of the first rotating assembly is connected with the output shaft of the motor.

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

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

[0019] In some embodiments of the present application, the cross section of the bottom plate of the collecting barrel is a truncated cone structure, the vibration motor is arranged at 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 sand cleaning method for castings, which adopts the sand cleaning device for castings.

[0021] S100, completing pouring of the ZL114A alloy sand mold casting of the complex closed cavity;

[0022] S200, cleaning the sand of the outer shape of the casting;

[0023] S300, the complex closed cavity ZL114A alloy sand mold casting is placed in a heating furnace and heated to 450°C±10°C, and kept for 5h-6h;

[0024] S400, after the complex closed cavity ZL114A alloy sand mold casting is heated and kept, it is taken out of the furnace,

[0025] S500, the complex closed cavity ZL114A alloy sand mold casting is placed on the top of the connecting column and supported by the supporting assembly, the vibration motor is turned on to vibrate and drop sand, and the dropped sand is collected by the collecting barrel, so that the complex closed cavity ZL114A alloy sand mold casting is fully cleaned.

[0026] The application has the following beneficial effects:

[0027] The sand cleaning device of the casting sets a vibration motor in the collecting barrel, the vibration motor is connected with the connecting column, the supporting assembly is arranged at the top of the connecting column to support the casting, the top of the connecting column is also provided with a cylindrical auxiliary discharging piece with a top seal, the vibration motor drives the supporting assembly and the casting to vibrate and drop sand, the dropped sand falls into the collecting barrel, and then is discharged from the discharging pipe on the side wall of the collecting barrel to the collecting box. Meanwhile, the collecting barrel is supported by the first rotating shaft, the first rotating shaft is provided with a pushing piece, and the pushing piece is driven by the pushing mechanism to rotate clockwise and counterclockwise in cycles, so as to drive the first rotating shaft and the collecting barrel to rotate in cycles to throw the sand in the collecting barrel from the discharging pipe into the collecting box. The sand cleaning work of the casting can be quickly and efficiently completed, and the dropped sand can be timely collected, so that the labor amount and labor intensity of workers in cleaning are reduced.

[0028] The sand cleaning method of the casting also has the beneficial effects described above. Meanwhile, after the complex closed cavity ZL114A alloy sand mold casting is completed, the casting is heated for a long time at a medium-low temperature after the conventional cleaning of the outer sand mold, so that the residual sand in the mold cavity is in an unstable state, and then the residual sand can be quickly and efficiently cleaned by vibration and dropping, which greatly reduces the sand cleaning difficulty of the complex closed cavity ZL114A alloy sand mold casting, effectively improves the production efficiency of the casting, and ensures the timely and high-quality delivery of the casting.

[0029] Of course, implementing any product of the application does not necessarily need to achieve all the advantages described above. In addition to the purposes, features and advantages described above, the application has other purposes, features and advantages. The application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings are provided to explain embodiments of the application and not to pose limitations as to the scope of the present application. In the drawings:

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

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

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

[0034] Figure 4 is a schematic diagram of the structure of the pusher of the 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 the casting heating time curve of the preferred embodiment of the present application.

[0037] Legend: 1, mounting frame; 2, collection bucket; 3, discharge pipe; 4, auxiliary discharging piece; 5, support piece; 6, first support plate; 7, second support plate; 8, limiting plate; 9, compression spring; 10, first rotating shaft; 11, pusher; 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 with reference to the accompanying drawings, but the present application can be implemented in various different ways as defined and covered by the following.

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

[0040] Figure 4 is a schematic diagram of the structure of the pusher of the 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 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 barrel 2, an auxiliary discharging part 4, a vibration motor 22, a supporting assembly, a pushing mechanism and a collecting box:

[0042] The mounting frame 1 is provided with a shock-absorbing plate 17, the shock-absorbing plate 17 is provided with a first rotating shaft 10, the collecting barrel 2 is arranged at the top end of the first rotating shaft 10, the vibration motor 22 is arranged in the collecting barrel 2, the vibration motor 22 is connected with a vertically arranged connecting column 24, the supporting assembly is arranged at the top end of the connecting column 24, the supporting assembly is used for supporting and limiting the castings, the auxiliary discharging part 4 comprises a limiting cylinder which is narrow at the top and wide at the bottom, the top of the limiting cylinder is sealed, the top of the limiting cylinder is connected with the top end 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 for driving the connecting column 24, the supporting assembly, the auxiliary discharging part 4 and the castings to vibrate, so as to vibrate and fall off the residual molding sand on the castings, the auxiliary discharging part 4 is used for receiving the falling molding sand through the side wall and making 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 collecting box is provided with a funnel at the top for receiving the discharge of the discharge pipe 3;

[0043] The first rotating shaft 10 is provided with a pushing part 11, the pushing mechanism is arranged on the shock-absorbing plate 17, the pushing mechanism is used for driving the pushing part 11 to rotate clockwise and counterclockwise in cycles, thereby driving the first rotating shaft 10 and the collecting barrel 2 to rotate in cycles to throw the molding sand in the collecting barrel 2 from the discharge pipe 3 and fall into the collecting box.

[0044] Here, the meaning of the pushing part 11 refers to the structure connected with the first rotating shaft 10, in some embodiments, the pushing part 11 is a plate-shaped structure, two limiting slot holes 12 are symmetrically arranged along the radial direction of the pushing part 11, and the limiting slot holes 12 are in communication with the side wall of the pushing part 11, the side wall of the pushing part 11 is chamfered at the opening of the limiting slot hole 12, so that the push rod 15 can more smoothly slide into the limiting slot hole 12.

[0045] The sand cleaning device for castings of the present application is provided by installing a vibration motor 22 in a collection barrel 2. The vibration motor 22 is connected to a connecting column 24. A support assembly is provided at the top of the connecting column 24 to support and limit the casting. A cylindrical auxiliary discharge member 4 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 shake out the sand. The sand falls into the collection barrel 2 through the auxiliary discharge member 4 and is then 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 a first rotating shaft 10. The first rotating shaft 10 is provided with a pusher 11. The pusher 11 is driven by the pusher mechanism 11 to rotate clockwise and counterclockwise, thereby driving the first rotating shaft 10 and the collection barrel 2 to rotate in a cycle so that the molding sand in the collection barrel 2 is thrown out of the discharge pipe 3 and falls 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, reducing the labor and labor intensity of workers.

[0046] Preferably, please refer to Figure 1 As shown, multiple groups of support assemblies are arranged in a circular array along the axis of the connecting column 24. The support assembly includes a support member 5, a first support plate 6 and a compression spring 9. The support member 5 is arranged at the top of the auxiliary blanking member 4. 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. The first support plate 6 is arranged at the top 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, 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 when they are not working and are in a 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 move back and forth along the radial direction of the collecting 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 can be understood that the second support plate 7 can slide in the first support plate 6 and be locked by the locking member, the second support plate 7 drives the limiting plate 8 to move to adjust the position, so as to realize the support and limiting of the side of the casting, strengthen the limiting stability of the casting, and ensure the smooth vibration shakeout. At the same time, the position of the limiting plate 8 is adjustable, which is convenient for adapting to the limiting needs of castings of different sizes, and improves the adaptability of the support assembly.

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

[0051] Preferably, as shown in Figure 1 , the side wall of the limiting plate 8 abutting against the casting is a convex arc surface structure, and the side wall is provided with a rubber pad; the top of the support 5 is a convex arc surface structure, and the top surfaces of the support 5, the first support plate 6 and the second support plate 7 are all provided with rubber pads.

[0052] It can be understood that the top of the support 5 is provided as a convex arc surface structure, which can reduce the shakeout remaining on the top of the support 5, facilitate the shakeout to slide off the top of the support 5 in time, and reduce the influence of the shakeout on the casting. At the same time, the top surfaces of the support 5, 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 impact damage to the casting.

[0053] Preferably, as shown in Figure 2 , 3 , 4, two limiting slot holes 12 are symmetrically formed on the push member 11 along the radial direction, the push 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 with 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 and the second rotating assembly 14, so that the first rotating assembly 13 drives the second rotating assembly 14 to synchronously and reversely rotate through the gear transmission assembly, the first rotating assembly 13 is used to slide into one side of the limiting slot hole 12 when rotating, push the push member 11 to rotate by a certain angle in a first direction, and then disengage from the limiting slot hole 12, the second rotating assembly 14 is used to slide into the other side of the limiting slot hole 12 when rotating, push the push member 11 to rotate by a certain angle in a second direction, and then disengage from the limiting slot hole 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 (e.g. both clockwise), the second direction is the same rotation direction as the first rotating component 13 (e.g. both counterclockwise), and the rotation direction of the first rotating component 13 and the second rotating component 14 is opposite, that is, one is clockwise and the other is counterclockwise, so as to realize the clockwise and counterclockwise alternating rotation of the pushing member 11, the first rotating shaft 10 and the collecting barrel 2, and the sand falling from the bottom of the collecting barrel 2 can be thrown out of the discharge pipe 3 to the collecting box, which facilitates the timely cleaning and collection of the sand, and reduces the cleaning workload of the collecting barrel 2.

[0055] Preferably, please refer to Figure 2 、 3 , 4, 5, the first rotating component 13 and the second rotating component 14 each 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 the pre-set 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 hole 12 to push the pushing member 11 to rotate, and the second rotating shaft 23 of the first rotating component 13 is connected with the output shaft of the motor 19.

[0056] It can be understood that the first rotating component 13 and the second rotating component 14 have the same structure, and the rotation directions of the two are opposite, so as to realize that the first rotating component 13 drives the pushing member 11 to rotate a certain angle in the direction opposite to the first rotating component 13 through the push rod 15, and then the first rotating component 13 is separated from the pushing member 11, and the second rotating component 14 starts to contact and push the pushing member 11 to rotate a certain angle in the direction opposite to the second rotating component 14, so as to realize the alternating rotation of the pushing member 11 in the opposite directions, which can effectively drive the collecting barrel 2 to rotate alternately, so that the sand in the collecting barrel 2 is thrown, and finally discharged from the discharge pipe 3. In this way, the workload of workers cleaning the collecting barrel 2 can be greatly reduced, the work intensity can be effectively reduced, the sand can be prevented from gathering in the collecting barrel 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 assembly. The gear transmission assembly 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 is understood that the first rotating assembly 13 and the second rotating assembly 14 are respectively disposed on the top of the shock-absorbing plate 17 via the second rotating shaft 23, and the gear rotating assembly is disposed on the bottom of the shock-absorbing plate 17 via 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, thereby transmitting the motion of the first rotating assembly 13 to the second rotating assembly 14 via the gear rotating assembly, and achieving synchronous counter-rotation of the second rotating assembly 14 and the first rotating assembly 13. Because the mating connection between the first gear 18 and the gear pair 20, and between the gear pair 20 and the second gear 21, can have a large margin, they are less affected by vibration. Combined with the shock-absorbing effect of the shock-absorbing plate 17, the impact of the operation of the vibration motor 22 on the motor 19 can be effectively reduced, effectively improving the operating stability and service life of the drive component.

[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 can be understood 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 is understood that the bottom plate of the collection bucket 2 is designed with a high center and low perimeter, allowing the falling sand to slide smoothly into the outermost portion for discharge from the discharge pipe 3. The vibration motor 22 is positioned at the highest point of the bottom plate of the collection bucket 2 to minimize the impact of falling sand on the operation of the vibration motor 22. Optionally, a protective cylinder is provided at the bottom of the collection bucket 2 to shield and protect the vibration motor 22.

[0063] Preferably, the discharge pipe 3 annular array is provided with multiple, multiple discharge pipe 3 can facilitate the collection of sand falling through the different discharge pipe 3 at the bottom of the barrel 2.

[0064] In addition, the application also discloses a sand cleaning method of a casting, which adopts the sand cleaning device of the casting.

[0065] S100, completing pouring of the ZL114A alloy sand mold casting with the complex closed cavity;

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

[0067] S300, placing the ZL114A alloy sand mold casting with the complex closed cavity into a heating furnace and heating to 450 DEG C ± 10 DEG C and keeping for 5h-6h;

[0068] S400, discharging after completing the heating and keeping of the ZL114A alloy sand mold casting with the complex closed cavity;

[0069] S500, placing the ZL114A alloy sand mold casting with the complex closed cavity on the top of the connecting column 24 and supporting by the supporting assembly, starting the vibration motor 22 to vibrate and clean the sand, and collecting the sand by the collecting barrel 2, and completing the overall sand cleaning of the ZL114A alloy sand mold casting with the complex closed cavity.

[0070] The sand cleaning method of the casting also has the beneficial effects as described above. Meanwhile, after completing the conventional cleaning of the sand of the outer mold of the casting, the casting is heated for a long time at a medium-low temperature, so that the residual sand in the cavity is in an unstable state, and the residual sand can be cleaned effectively by vibrating and cleaning, the sand cleaning difficulty of the ZL114A alloy sand mold casting with the complex closed cavity is greatly reduced, the efficiency of the casting production is effectively improved, and the casting is delivered on time and with high quality.

[0071] It should be noted that in the present document, the terms "comprising", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles or devices.

[0072] The principles and implementations of the present application are described herein with specific examples. The above examples are only used to help understand the method and its core idea of the present application. The above description is only the preferred embodiments of the present application. It should be pointed out that due to the limited nature of the language expression, there are objectively infinite specific structures, and for ordinary skilled persons in the art, without departing from the principles of the present application, a number of improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner. The improvements, refinements, changes or combinations, or the application of the inventive concept and technical solution to other fields without improvement, shall be regarded as the protection of the present application.

Claims

1. A sand cleaning device for a casting, characterized by The device comprises a mounting frame (1), a collecting barrel (2), an auxiliary discharging part (4), a vibration motor (22), a supporting assembly, a pushing mechanism and a collecting box: The mounting frame (1) is provided with a shock-absorbing plate (17), the shock-absorbing plate (17) is provided with a first rotating shaft (10), the collecting barrel (2) is arranged at the top end of the first rotating shaft (10), the vibration motor (22) is arranged in the collecting barrel (2), the vibration motor (22) is connected with a vertically arranged connecting column (24), the supporting assembly is arranged at the top end of the connecting column (24), the supporting assembly is used for supporting the limited casting, the auxiliary discharging part (4) comprises a limited cylinder with a narrow top and a wide bottom, the top of the limited cylinder is sealed, the top of the limited cylinder is connected with the top end of the connecting column (24), the side wall of the limited 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 for driving the connecting column (24), the supporting assembly, the auxiliary discharging part (4) and the casting to vibrate, so as to vibrate and fall off the residual sand in the casting, the auxiliary discharging part (4) is used for receiving the falling sand through the side wall and making the sand fall into the collecting barrel (2), the side wall of the collecting barrel (2) is provided with a discharging pipe (3), the collecting box is arranged below the discharging pipe (3), and the collecting box is provided with a funnel at the top for receiving the discharging of the discharging pipe (3). The first rotating shaft (10) is provided with a pushing part (11), the pushing mechanism is arranged on the shock-absorbing plate (17), the pushing mechanism is used for driving the pushing part (11) to rotate clockwise and counterclockwise, thereby driving the first rotating shaft (10) and the collecting barrel (2) to rotate to shake the sand in the collecting barrel (2) from the discharging pipe (3) and fall into the collecting box.

2. A sand cleaning apparatus for castings as claimed in claim 1 wherein, The supporting assembly is arranged in multiple groups along the axis of the connecting column (24), the supporting assembly comprises a supporting part (5), a first supporting plate (6) and a compression spring (9), the supporting part (5) is arranged at the top end of the auxiliary discharging part (4), the supporting part (5) is used for supporting the casting, the bottom end of the compression spring (9) is connected to the side wall of the auxiliary discharging part (4), the first supporting plate (6) is arranged at the top end of the compression spring (9), the compression spring (9) is used to provide an elastic force for pushing the first supporting plate (6) vertically upward, thereby supporting and buffering the casting by the first supporting plate (6).

3. A sand cleaning apparatus for castings as claimed in claim 2 wherein, The supporting assembly further comprises a second supporting plate (7), a limiting plate (8) and a locking part, the second supporting plate (7) is movably arranged in a pre-set guide slot hole of the first supporting plate (6), the height of the first supporting plate (6) and the second supporting plate (7) in the non-working static state is higher than that of the supporting part (5), the limiting plate (8) is arranged on the second supporting plate (7) and perpendicular to the second supporting plate (7), the second supporting plate (7) is used for reciprocating movement along the radial direction of the collecting barrel (2), thereby driving the limiting plate (8) to compress and limit the side wall of the casting, and the locking part is used for penetrating through a pre-set locking screw hole of the first supporting plate (6) to tightly press the second supporting plate (7), so as to lock and limit the second supporting plate (7) and the first supporting plate (6).

4. A sand cleaning apparatus for castings as claimed in claim 3 wherein, The side wall of the limiting plate (8) abutting against the casting is a convex arc surface structure, and a rubber pad is arranged on the side wall; the top of the support (5) is a convex arc surface structure, and rubber pads are arranged on the top surfaces of the support (5), the first support plate (6) and the second support plate (7).

5. The sand cleaning apparatus for a casting according to claim 1, wherein The pushing member (11) is radially symmetrical and has two limiting slot holes (12) formed therein; the pushing mechanism comprises a motor (19), a gear transmission assembly, and a first rotating assembly (13) and a second rotating assembly (14) arranged on the two sides of the shock-absorbing plate (17), respectively; the motor (19) is connected with the first rotating assembly (13), and 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), and is used to connect the first rotating assembly (13) and the second rotating assembly (14) so that the first rotating assembly (13) drives the second rotating assembly (14) to synchronously and reversely rotate through the gear transmission assembly; the first rotating assembly (13) is used to slide into one of the limiting slot holes (12) and push the pushing member (11) to rotate by a certain angle in a first direction, and then to be separated from the limiting slot hole (12); the second rotating assembly (14) is used to slide into the other limiting slot hole (12) and push the pushing member (11) to rotate by a certain angle in a second direction, and then to be separated from the limiting slot hole (12); the first direction is opposite to the second direction.

6. A sand cleaning apparatus for castings as claimed in claim 5 wherein, The first rotating assembly (13) and the second rotating assembly (14) each comprise 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, and is used to be connected with a connecting bearing prearranged 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, and the rotating rod (16) is used to drive the push rod (15) to rotate, and then to push the pushing member (11) to rotate by sliding into the limiting slot hole (12); the second rotating shaft (23) of the first rotating assembly (13) is connected with the output shaft of the motor (19).

7. A sand cleaning apparatus for castings as claimed in claim 6 wherein, The second rotating shafts (23) of the first rotating assembly (13) and the second rotating assembly (14) are connected through the gear transmission assembly; the gear transmission assembly comprises 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 assembly (13); the second gear (21) is arranged on the second rotating shaft (23) of the second rotating assembly (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) synchronously and reversely rotate with the first gear (18).

8. A sand cleaning device for a casting according to any one of claims 5 to 7, characterised in that, The shock-absorbing plate (17) is a plate-shaped structure made of elastic material; rubber pads are arranged on the top surface and the bottom surface of the shock-absorbing plate (17); the bottom of the mounting frame (1) is provided with shock-absorbing springs.

9. The sand cleaning apparatus of claim 1, wherein The cross section of the bottom plate of the collecting barrel (2) is a truncated cone structure, the vibration motor (22) is arranged at 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 method of sand cleaning of a casting, characterized in that A sand cleaning device for a casting as claimed in any one of claims 1 to 9, comprising the following steps: S100, complete the pouring of the complex closed cavity ZL114A alloy sand mold casting; S200, normally clean the sand of the outer mold of the casting; S300, place the complex closed cavity ZL114A alloy sand mold casting into a heating furnace and heat it to 450℃±10℃, and keep it at this temperature for 5h-6h; S400, after the heating and keeping of the complex closed cavity ZL114A alloy sand mold casting are completed, take it out of the furnace; S500, place the complex closed cavity ZL114A alloy sand mold casting on the top of the connecting column (24) and support it by the supporting assembly, start the vibration motor (22) to vibrate and drop the sand, collect the dropped sand by the collecting barrel (2), and complete the overall sand cleaning of the complex closed cavity ZL114A alloy sand mold casting.

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