Foundry sand cleaning equipment for casting part machining

Abstract

The utility model discloses foundry sand cleaning equipment for casting part machining. The foundry sand cleaning equipment comprises a cleaning device, a drying device and a vibration impurity removing device. The cleaning device comprises a conveying belt, a spraying assembly, a recovery liquid tank and a uniform material placing device, the spraying assembly is located above the conveying belt, the conveying belt is fixed to the recovery liquid tank, and the uniform material placing device is located above the feeding end of the conveying belt; the drying device comprises a drying chamber and a drying assembly. A feeding port of the drying chamber is located below the discharging end of the conveying belt. The vibration impurity removing device is located below the discharging port of the drying chamber, cleaning, drying and impurity removing operation of the recycled sand can be automatically conducted, automation of the cleaning procedure of the recycled sand is achieved, the cleaning efficiency of the casting sand is effectively improved, the labor intensity of workers is reduced, and the quality of the recycled sand is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of casting processing technology, specifically to a casting sand cleaning device for casting processing. Background Technology

[0002] Foundry sand recycling and cleaning refers to the process of cleaning, recycling, and reusing sand molds and cores used in the casting process. During the casting process, sand molds and cores may sinter, agglomerate, or break due to high temperatures and the action of molten metal, requiring cleaning and repair to ensure the quality and efficiency of the next casting.

[0003] The main steps in the recycling and cleaning of foundry sand include:

[0004] Sand mold and core mold separation: The casting that has been completed is removed from the sand mold and core mold.

[0005] Sand and core mold crushing: Sand molds and core molds are crushed using crushing equipment to break them down into smaller particles.

[0006] Sand mold and core mold screening: The crushed sand mold and core mold particles are screened by screening equipment to separate sand materials of different particle sizes.

[0007] Cleaning and impurity removal: The screened sand is cleaned to remove impurities and metal residues.

[0008] Drying and baking: The cleaned sand is dried and baked to remove moisture and volatile substances, thereby improving the quality of the sand.

[0009] Sand quality testing: The quality of the recycled sand is tested, including parameters such as particle size distribution, moisture content and chemical composition.

[0010] Sand storage and reuse: The cleaned and recycled sand is stored for reuse in the next casting.

[0011] The purpose of foundry sand recycling and cleaning is to reduce resource waste and environmental pollution. By recycling and cleaning foundry sand, waste generation can be effectively reduced and production costs lowered. At the same time, cleaned and recycled sand has a certain quality assurance, which can improve the surface quality and dimensional accuracy of castings. Compared with fresh sand, recycled and cleaned sand is more stable and controllable, providing better casting quality.

[0012] Currently, the processes of cleaning, removing impurities, and drying foundry sand involve a high degree of manual labor and a low degree of automation, which is not conducive to improving the efficiency of sand recycling and thus affects the efficiency of casting operations. Utility Model Content

[0013] The purpose of this utility model is to provide a casting sand cleaning device for casting parts processing, so as to solve the problems mentioned in the background art.

[0014] To achieve the above objectives, this utility model provides the following technical solution: a foundry sand cleaning device for casting parts processing, comprising a cleaning device, a drying device, and a vibration impurity removal device; the cleaning device includes a conveyor belt, a spray assembly, a recovery liquid tank, and a uniform material placement device, wherein the spray assembly is located above the conveyor belt, the conveyor belt is fixed on the recovery liquid tank, and the uniform material placement device is located above the feed end of the conveyor belt; the drying device includes a drying chamber and a drying assembly, wherein the feed inlet of the drying chamber is located below the discharge end of the conveyor belt; and the vibration impurity removal device is located below the discharge outlet of the drying chamber.

[0015] Preferably, the spray assembly includes a spray pipe and a plurality of spray heads disposed on the spray pipe. The spray pipe is connected to the frame of the conveyor belt via a pipe support. One end of the spray pipe is connected to the outlet of a booster pump. Baffles are provided on both sides of the conveyor belt. The baffles are connected to the frame of the conveyor belt. A filter port is provided at the bottom of the baffle, and a filter screen is provided inside the filter port.

[0016] Based on the above technical features, the spray assembly realizes the function of automatically washing the recycled sand, so that the dust and waste mixed in the sand are discharged through the filter outlet, eliminating the need for manual washing by staff, which can effectively improve the cleaning efficiency of foundry sand.

[0017] Preferably, the lower end of the recovery liquid tank is connected to a filter liquid tank, the filter liquid tank is equipped with a filter element, and the lower end of the filter liquid tank is connected to the inlet of the booster pump through a water supply pipe.

[0018] Based on the above technical features, the filter tank filters the cleaning liquid in the recovery tank, allowing it to be reused for sand cleaning, thereby realizing the recycling of the cleaning liquid, effectively reducing the cost of screen cleaning and reducing resource waste.

[0019] Preferably, the uniform material placement device is connected to the pipe support. The uniform material placement device includes a material placement plate and a limiting block. The upper end of the material placement plate is rotatably connected to the pipe support, and the upper end of the material placement plate is also provided with a torsion spring. The two ends of the torsion spring are in contact with the material placement plate and the limiting block, respectively. The lower end of the limiting block is located within the rotation range of the material placement plate.

[0020] Based on the above technical features, the uniform material feeding device can evenly spread the sand on the surface of the conveyor belt to ensure that the sand is fully washed and improve the cleaning effect of the sand.

[0021] Preferably, the drying chamber is equipped with a filter cartridge, the outer circumferential surface of which is provided with multiple filter holes, the diameter of which is no greater than 1.5 mm. A feeding screw is provided inside the filter cartridge, the feeding screw is rotatably connected to the drying chamber, and one end of the feeding screw is connected to a screw motor via a coupling. A scraper block is provided at the upper end of the feed inlet of the drying chamber, the distance between the scraper block and the discharge end of the conveyor belt is no greater than 1 mm. The drying assembly includes a fan, an air heater, and a hot air duct. The fan is connected to the air inlet of the air heater, and the air outlet of the air heater is connected to the drying chamber via the hot air duct.

[0022] Based on the above technical features, the feeding screw in the drying chamber agitates the sand during the conveying process, thereby ensuring that the sand is heated and dried evenly, effectively improving the drying efficiency of the sand.

[0023] Preferably, the vibration impurity removal device includes a vibration trough, a trough fixing frame, and a vibration motor. A filter screen is fixedly connected inside the vibration trough, and the mesh diameter of the filter screen is no greater than 1.5 mm. The vibration trough is located at the upper end of the trough fixing frame, and a rubber spring is connected to the lower end of the trough fixing frame. The vibration motor is fixedly connected to the trough fixing frame. The vibration trough is inclined, with a sand outlet at its lower end and its higher end located below the discharge port of the drying chamber. A slag discharge channel is provided at the lower end of the side of the vibration trough located at the sand outlet.

[0024] Based on the above technical features, the vibration removal device further screens and cleans the dried sand, separating the waste material mixed in with the sand and the sand particles that do not meet the minimum particle size, which helps to improve the quality of the recovered sand.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This foundry sand cleaning equipment for casting parts processing can automatically perform the cleaning, drying and impurity removal of recycled sand, realizing the automation of the recycled sand cleaning process, effectively improving the cleaning efficiency of foundry sand, reducing the labor intensity of workers, and ensuring the quality of recycled sand.

[0027] The cleaning device thoroughly cleans the sand using water flow or a spray system, removing impurities and dirt. The drying device removes moisture from the sand to improve its quality and stability. The vibration removal device separates and removes impurities and metal residues from the sand using sieving or other physical methods, ensuring the purity of the recycled sand. Furthermore, this invention features automated design, enabling automatic operation and adjustment of the equipment and reducing the need for manual intervention. By using foundry sand cleaning equipment, foundry sand can be utilized and recycled to the maximum extent, improving resource utilization efficiency, reducing waste generation, and simultaneously improving casting quality and production efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 for Figure 1 A magnified view of part A;

[0030] Figure 3 This is a schematic diagram of the structure of the vibration impurity removal device of this utility model;

[0031] In the picture:

[0032] 1 Conveyor belt, 2 Recovery liquid tank, 3 Drying chamber, 4 Feed inlet, 5 Spray pipe, 6 Spray head, 7 Booster pump, 8 Filter liquid tank, 9 Water supply pipe, 10 Pipe support, 11 Material plate, 12 Limiting block, 13 Torsion spring, 14 Filter cartridge, 15 Feeding screw, 16 Fan, 17 Air heater, 18 Hot air pipe, 19 Vibrating tank, 20 Tank fixing frame, 21 Vibrating motor, 22 Filter screen, 23 Sand outlet, 24 Slag discharge channel, 25 Rubber spring, 26 Discharge port, 27 Screw motor, 28 Baffle plate, 29 Water filter port. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-3 This utility model provides an embodiment of a foundry sand cleaning device for casting parts processing, comprising a cleaning device, a drying device, and a vibration impurity removal device; the cleaning device includes a conveyor belt 1, a spray assembly, a recovery liquid tank 2, and a uniform material placement device, the spray assembly being located above the conveyor belt 1, the conveyor belt 1 being fixed on the recovery liquid tank 2, and the uniform material placement device being located above the feed end of the conveyor belt 1; the drying device includes a drying chamber 3 and a drying assembly, the feed inlet 4 of the drying chamber 3 being located below the discharge end of the conveyor belt 1; the vibration impurity removal device is located below the discharge outlet 26 of the drying chamber 3.

[0035] Please refer to the attached diagram in the instruction manual. Figure 1The spray assembly includes a spray pipe 5 and multiple spray heads 6 installed on the spray pipe 5. The spray pipe 5 is connected to the frame of the conveyor belt 1 through a pipe support 10. One end of the spray pipe 5 is connected to the outlet of a booster pump 7. Baffle plates 28 are provided on both sides of the conveyor belt 1. The baffle plates 28 are connected to the frame of the conveyor belt 1. A filter port 29 is provided at the bottom of the baffle plate 287. A filter screen is provided inside the filter port 29.

[0036] Please refer to the attached diagram in the instruction manual. Figure 1 The lower end of the recovery liquid tank 2 is connected to the filter liquid tank 8, which contains a filter element. The lower end of the filter liquid tank 8 is connected to the inlet of the booster pump 7 through the water supply pipe 9.

[0037] Please refer to the attached diagram in the instruction manual. Figure 2 The uniform material feeding device is connected to the pipe support 10. The uniform material feeding device includes a feeding plate 11 and a limiting block 12. The upper end of the feeding plate 11 is rotatably connected to the pipe support 10, and the upper end of the feeding plate 11 is also provided with a torsion spring 13. The two ends of the torsion spring 13 are in contact with the feeding plate 11 and the limiting block 12 respectively. The lower end of the limiting block 12 is located within the rotation range of the feeding plate 11. The uniform material feeding device is used to spread the sand material on the surface of the uniform conveyor belt 1.

[0038] Please refer to the attached diagram in the instruction manual. Figure 1 The drying chamber 3 is equipped with a filter cylinder 14. Multiple filter holes with a diameter of 1mm are distributed on the outer surface of the filter cylinder 14. A feeding screw 15 is installed inside the filter cylinder 14, rotatably connected to the drying chamber 3. One end of the feeding screw 15 is connected to a screw motor 27 via a coupling. During the conveying process, the feeding screw 15 can cause the sand to tumble, improving the drying efficiency of the sand in the drying chamber 3. A scraper block is installed at the upper end of the feed inlet 4 of the drying chamber 3. The distance between the material block and the discharge end of the conveyor belt 1 is 0.5mm. When the sand adheres to the surface of the conveyor belt 1 and cannot fall, the sand is scraped off by the scraper block and falls into the feed inlet 4. The drying component includes a fan 16, an air heater 17 and a hot air duct 18. The fan 16 is connected to the air inlet of the air heater 17, and the air outlet of the air heater 17 is connected to the drying chamber 3 through the hot air duct 18. The fan 16 delivers the heated air to the drying chamber 3 to dry the sand.

[0039] Please refer to the attached diagram in the instruction manual. Figure 3The vibration removal device includes a vibration trough 19, a trough fixing frame 20, and a vibration motor 21. A filter screen 22 with a mesh diameter of 1mm is fixedly connected inside the vibration trough 19. The vibration trough 19 is located at the upper end of the trough fixing frame 20, and a rubber spring 25 is connected to the lower end of the trough fixing frame 20. The vibration motor 21 is fixedly connected to the trough fixing frame 20. The vibration trough 19 is inclined, with a sand outlet 23 at its lower end and a slag discharge channel 24 at its higher end below the discharge port 5 of the drying chamber 3. The vibration removal device is used to separate and discharge waste chips carried in the sand and broken sand fragments during processing to improve the quality of the recycled sand.

[0040] Working principle

[0041] The present invention relates to a casting sand cleaning device for processing castings, which is used for cutting and processing iron castings;

[0042] In use, the conveyor belt motor, booster pump 7, fan 16, air heater 17, vibrating motor 21 and screw motor 27 are electrically connected to an external power supply and controller. The controller can be a conventional known component such as a computer that provides control.

[0043] During operation, the conveyor belt 1 transports the recycled foundry sand to be cleaned, the material plate 11 smooths the sand on the surface of the conveyor belt 1, the booster pump 7 pumps the cleaning liquid in the filter tank 8 to the spray pipe 5, and the sand on the surface of the conveyor belt 1 is washed through each spray head 6. The washing liquid carries the dust through the water filter port 29 into the recycling tank 2, and is filtered through the filter tank 8 before being pumped into the booster pump 7.

[0044] After cleaning, the sand is conveyed by conveyor belt 1 to filter cartridge 14 in drying chamber 3. Screw motor 27 drives the feeding screw 15 to rotate and convey the sand. At the same time, fan 16 delivers outside air to air heater 17 for heating and then delivers it to drying chamber 3 through hot air pipe 18 to dry the sand.

[0045] After drying, the sand enters the vibrating tank 19 through the discharge port 26. The vibrating motor 21 drives the vibrating tank 19 to vibrate and separate the waste and broken sand attached to the surface of the sand. The waste and broken sand are discharged through the slag discharge channel 24 through the filter screen 22. The separated sand is discharged through the sand outlet 23.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A foundry sand cleaning device for processing castings, characterized in that, Includes cleaning equipment, drying equipment, and vibration removal equipment; The cleaning device includes a conveyor belt (1), a spray assembly, a recovery liquid tank (2), and a uniform feeding device. The spray assembly is located above the conveyor belt (1), the conveyor belt (1) is fixed on the recovery liquid tank (2), and the uniform feeding device is located above the feed end of the conveyor belt (1). The drying device includes a drying chamber (3) and a drying assembly, wherein the feed inlet (4) of the drying chamber (3) is located below the discharge end of the conveyor belt (1); The vibration cleaning device is located below the discharge port (26) of the drying chamber (3).

2. The foundry sand cleaning equipment for casting parts processing according to claim 1, characterized in that, The spray assembly includes a spray pipe (5) and multiple spray heads (6) arranged on the spray pipe (5). The spray pipe (5) is connected to the frame of the conveyor belt (1) through a pipe support (10). One end of the spray pipe (5) is connected to the outlet of a booster pump (7). Baffles (28) are provided on both sides of the conveyor belt (1). The baffles (28) are connected to the frame of the conveyor belt (1). A filter port (29) is provided at the bottom of the baffle (28). A filter screen is provided inside the filter port (29).

3. The foundry sand cleaning equipment for casting parts processing according to claim 1, characterized in that, The lower end of the recovery liquid tank (2) is connected to a filter liquid tank (8), and the filter liquid tank (8) is equipped with a filter element. The lower end of the filter liquid tank (8) is connected to the inlet of the booster pump (7) through a water supply pipe (9).

4. The foundry sand cleaning equipment for casting parts processing according to claim 1, characterized in that, The uniform material placement device is connected to the pipe support (10). The uniform material placement device includes a material placement plate (11) and a limiting block (12). The upper end of the material placement plate (11) is rotatably connected to the pipe support (10), and the upper end of the material placement plate (11) is also provided with a torsion spring (13). The two ends of the torsion spring (13) are in contact with the material placement plate (11) and the limiting block (12) respectively. The lower end of the limiting block (12) is located within the rotation range of the material placement plate (11).

5. The foundry sand cleaning equipment for casting parts processing according to claim 1, characterized in that, The drying chamber (3) is equipped with a filter cylinder (14), and the outer circumferential surface of the filter cylinder (14) is provided with multiple filter holes. The filter cylinder (14) is equipped with a feeding screw (15), which is rotatably connected to the drying chamber (3). One end of the feeding screw (15) is connected to the screw motor (27) through a coupling. The upper end of the feed inlet (4) of the drying chamber (3) is provided with a scraper block, and the distance between the scraper block and the discharge end of the conveyor belt (1) is not greater than 1 mm.

6. The foundry sand cleaning equipment for casting parts processing according to claim 1, characterized in that, The drying assembly includes a fan (16), an air heater (17), and a hot air duct (18). The fan (16) is connected to the air inlet of the air heater (17), and the air outlet of the air heater (17) is connected to the drying chamber (3) through the hot air duct (18).

7. The foundry sand cleaning equipment for casting parts processing according to claim 1, characterized in that, The vibration removal device includes a vibration tank (19), a tank fixing frame (20), and a vibration motor (21). A filter screen (22) is fixedly connected inside the vibration tank (19). The vibration tank (19) is located at the upper end of the tank fixing frame (20). A rubber spring (25) is connected to the lower end of the tank fixing frame (20). The vibration motor (21) is fixedly connected to the tank fixing frame (20).

8. The foundry sand cleaning equipment for casting parts processing according to claim 7, characterized in that, The vibrating trough (19) is inclined, with a sand outlet (23) at its lower end and a material outlet (26) at its higher end below the material outlet (26) of the drying chamber (3); and a slag discharge channel (24) is provided at the lower end of the vibrating trough (19) on one side of the sand outlet (23).

9. A foundry sand cleaning device for casting parts processing according to claim 5, characterized in that, The diameter of the filter holes on the surface of the filter cartridge (14) is no greater than 1.5 mm.

10. A foundry sand cleaning device for casting parts processing according to claim 7, characterized in that, The mesh diameter of the filter screen (22) is no greater than 1.5 mm.

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