A molding sand processing device

Abstract

This utility model relates to the field of molding sand processing technology, specifically disclosing a molding sand processing device, including a processing box. A processing cylinder is mounted on the top of one end of the processing box via a support. A pre-treatment mechanism is mounted on the processing cylinder. A feed inlet is located at the top of the processing cylinder, and a discharge outlet is located at the bottom of the cylinder. The discharge outlet is connected to the top of one end of the processing box. A cleaning box is located on one side of the processing box, and a discharge box is located on the other side. A first roller rotates inside the cleaning box, and a second motor drives the first roller in combination. A second roller is located inside the discharge box. A magnetic conveyor belt is wrapped between the first and second rollers. Conveying ports are located on opposite sides of the processing box. This utility model, through a series of structures, achieves integrated processing effects of molding sand crushing, screening, iron removal, and drying. It has good iron removal effect, convenient collection, and uniform molding sand conveying.

Description

Technical Field

[0001] This utility model relates to the field of molding sand treatment technology, specifically to a molding sand treatment device. Background Technology

[0002] Molding sand is an important raw material in the foundry industry, and its quality directly affects the quality of castings. Molding sand treatment refers to a series of processes performed on the molding sand used in the casting process to ensure that its quality and performance meet casting requirements. Molding sand treatment mainly includes used sand treatment, batching, and sand mixing. After processes such as separation, screening, and cooling, impurities are removed from the used sand, making it reusable.

[0003] Currently, molding sand processing requires multiple equipment such as crushing equipment, screening equipment, iron removal equipment, and drying equipment. Molding sand processing equipment is costly and energy-intensive. Furthermore, iron removal from molding sand is affected by the amount of molding sand and the iron filings on the surface of the iron removal rod. The amount of molding sand passing through the iron removal rod is relatively large, and the molding sand covering the surface of the iron removal rod blocks the magnetism, resulting in residual iron in the molding sand and poor practicality. Utility Model Content

[0004] The purpose of this invention is to provide a molding sand processing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a molding sand processing device, comprising a processing box, a processing cylinder mounted on the top of one end of the processing box via a support, a pre-treatment mechanism mounted on the processing cylinder, a feed inlet at the top of the processing cylinder, a discharge outlet at the bottom of the processing cylinder, the discharge outlet being connected to the top of one end of the processing box, a cleaning box on one side of the processing box, and a discharge box on the other side of the processing box, a first roller rotating inside the cleaning box, driven by a second motor, a second roller inside the discharge box, a magnetic conveyor belt wrapped between the first and second rollers, conveying ports on opposite sides of the processing box, the magnetic conveyor belt passing through the conveying ports through the processing box, a cleaning mechanism inside the cleaning box, and a drying mechanism mounted on the processing box above the magnetic conveyor belt.

[0006] Preferably, the pretreatment mechanism includes a screening screen, a crushing rod, a crushing knife, a cleaning brush, and a No. 1 motor. The screening screen is located at the lower end of the inside of the treatment cylinder, and the crushing rod is located inside the treatment cylinder above the screening screen. The No. 1 motor is located at the top of the treatment cylinder, and the No. 1 motor drives the crushing rod to rotate. The crushing rod is equipped with a crushing knife, and a cleaning brush is located at the lower end of one side of the crushing rod.

[0007] Preferably, the cleaning mechanism includes a scraper, a support plate, and a waste drawer. The scraper is provided inside the cleaning box on the side of the first roller away from the processing box via the support plate. The scraper is positioned on the side away from the support plate corresponding to the magnetic conveyor belt. The waste drawer is provided inside the cleaning box below the magnetic conveyor belt via a drawer slot.

[0008] Preferably, the drying mechanism includes a circulating fan, an exhaust port, an electric heater, an air supply plate, and a support rod. The top of the processing box is equipped with a circulating fan and an electric heater. An exhaust port is provided on the top of the processing box near the discharge box. An air supply plate is provided inside the processing box above the magnetic conveyor belt via a support rod. Several evenly distributed air supply ports are provided at the bottom of the air supply plate. The exhaust port is connected to the input end of the circulating fan via a duct. The output end of the circulating fan is connected to the air inlet of the electric heater via a duct. The air outlet of the electric heater is connected to the air supply plate via a duct.

[0009] Preferably, an opening is provided on one side of the discharge box below the second roller, and a storage box is provided inside the discharge box through the opening.

[0010] Preferably, the support rod is an electric telescopic rod, the air duct above the air supply plate is a corrugated pipe, and a limiting plate is provided at the end of the air supply plate near the discharge port.

[0011] Preferably, a guide plate is provided inside the processing box on the side away from the discharge box below the discharge port, and the guide plate is located above the magnetic conveyor belt.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This molding sand processing device, through the processing cylinder set on the top of the processing box, the screening screen, crushing rod, crushing knife, cleaning brush and No. 1 motor work together to realize the integrated processing of molding sand crushing and screening, and the screening is smooth; the magnetic conveyor belt, discharge box and storage box set inside the processing box work together, and the cleaning box works together with scraper and waste drawer to realize the iron removal of molding sand. The iron removal effect of molding sand is good and the cleaning and collection are convenient.

[0014] 2. This molding sand processing device, through the air supply plate and air outlet set in the processing box on the magnetic conveyor belt, together with the exhaust port, electric heater and circulating fan, realizes the circulating air supply and drying of molding sand for iron removal and conveying. Combined with the set support rod and limit plate, the molding sand is conveyed more evenly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the processing cylinder in this utility model;

[0017] Figure 3This is a schematic diagram of the structure of the magnetic conveyor belt in this utility model;

[0018] Figure 4 This is a schematic diagram of the scraper structure in this utility model;

[0019] Figure 5 This is a schematic diagram of the exhaust vent structure in this utility model.

[0020] In the diagram: 1. Processing box; 2. Processing cylinder; 21. Feed inlet; 22. Screening screen; 23. Crushing rod; 24. Crushing knife; 25. Cleaning brush; 26. Motor No. 1; 3. Magnetic conveyor belt; 31. Roller No. 1; 32. Roller No. 2; 33. Motor No. 2; 4. Discharge box; 41. Storage box; 5. Cleaning box; 6. Circulating fan; 61. Exhaust vent; 62. Electric heater; 63. Air supply plate; 64. Support rod; 65. Limiting plate; 7. Discharge port; 8. Scraper; 81. Support plate; 9. Waste drawer; 10. Guide plate. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 5 As shown, a molding sand processing device includes a processing box 1. A processing cylinder 2 is mounted on the top of the processing box 1 via a support. A pre-treatment mechanism is mounted on the processing cylinder 2. A feed inlet 21 is located at the top of the processing cylinder 2, and a discharge outlet 7 is located at the bottom of the processing cylinder 2. The discharge outlet 7 is connected to the top of the processing box 1. A cleaning box 5 is located on one side of the processing box 1, and a discharge box 4 is located on the other side of the processing box 1. A first roller 31 is rotatably mounted inside the cleaning box 5. A second motor 33 is mounted on one side of the cleaning box 5 via a motor frame. The second motor 33 drives the first roller 31 to rotate. A second roller 32 is located inside the discharge box 4. A magnetic conveyor belt 3 is wrapped between the first roller 31 and the second roller 32. Conveying ports are located on opposite sides of the processing box 1. The magnetic conveyor belt 3 passes through the conveying ports of the processing box 1. A cleaning mechanism is located inside the cleaning box 5. A drying mechanism is located on the processing box 1 above the magnetic conveyor belt 3. This device integrates molding sand crushing and screening, ensuring smooth screening. The magnetic conveyor belt 3 facilitates iron removal, drying, and conveying of the molding sand, making iron removal, cleaning, and collection of the molding sand convenient.

[0023] Specifically, the pretreatment mechanism includes a screening screen 22, a crushing rod 23, a crushing knife 24, a cleaning brush 25, and a primary motor 26. The screening screen 22 is located at the lower end of the processing cylinder 2, and the crushing rod 23 is located inside the processing cylinder 2 above the screening screen 22. The primary motor 26 drives the crushing rod 23 to rotate. The crushing knife 24 is located on the crushing rod 23, and the cleaning brush 25 is located at the lower end of the crushing rod 23. The primary motor 26 drives the crushing rod 23 and the crushing knife 24 to rotate inside the processing cylinder 2. After the molding sand is crushed in the processing cylinder 2, it is screened through the screening screen 22, and the cleaning brush 25 cleans the screening screen 22.

[0024] Furthermore, the cleaning mechanism includes a scraper 8, a support plate 81, and a waste drawer 9. Inside the cleaning box 5 on the side of the first roller 31 furthest from the processing box 1, a scraper 8 is provided via the support plate 81. The scraper 8 is positioned opposite the magnetic conveyor belt 3 on the side furthest from the support plate 81. Below the magnetic conveyor belt 3, inside the cleaning box 5, a waste drawer 9 is provided via a drawer slot. Iron filings magnetically attracted to the magnetic conveyor belt 3 are conveyed to the interior of the cleaning box 5. When the magnetic conveyor belt 3 passes the scraper 8, the scraper 8 scrapes the iron filings from the magnetic conveyor belt 3 into the waste drawer 9 of the cleaning box 5, thus achieving iron removal, cleaning, and collection of the molding sand. In this application, the magnetic conveyor belt can be made of soft magnetic material.

[0025] Furthermore, the drying mechanism includes a circulating fan 6, an exhaust vent 61, an electric heater 62, an air supply plate 63, and a support rod 64. The top of the processing box 1 is equipped with the circulating fan 6 and the electric heater 62. An exhaust vent 61 is located at the top of the processing box 1 near the discharge box 4. The exhaust vent 61 has a dustproof screen inside. An air supply plate 63 is located inside the processing box 1 above the magnetic conveyor belt 3, connected by the support rod 64. The air supply plate 63 has a hollow internal structure and uses an existing air distribution plate design. Several evenly distributed air supply vents are located at the bottom of the air supply plate 63. The outlet 61 is connected to the input end of the circulating fan 6 through a duct. The output end of the circulating fan 6 is connected to the air inlet of the electric heater 62 through a duct. The air outlet of the electric heater 62 is connected to the air supply plate 63 through a duct. The electric heater 62 is an air heater with existing electric heating wire. Under the action of the circulating fan 6, the air in the treatment box 1 is transported to the electric heater 62 through the duct from the exhaust outlet 61. After being heated by the electric heater 62, it is transported to the air supply plate 63 through the duct. The air is then sent to the molding sand on the magnetic conveyor belt 3 for drying through the air outlet on the air supply plate 63.

[0026] Furthermore, an opening is provided on one side of the discharge box 4 below the second roller 32. A storage box 41 is provided inside the discharge box 4 through the opening. The height and width of the storage box 41 are set to correspond to the height and width of the opening. The storage box 41 can block the opening of the discharge box 4. The storage box 41 is placed inside the discharge box 4 through the opening to receive the molding sand conveyed by the magnetic conveyor belt 3.

[0027] Furthermore, the support rod 64 is an electric telescopic rod, the air duct above the air supply plate 63 is a corrugated pipe, and a limiting plate 65 is provided at one end of the air supply plate 63 near the discharge port 7. The processing box 1 at the top of the limiting plate 65 is provided with an opening, and the limiting plate 65 is set through the processing box 1 through the opening. The support rod 64, which is set by the electric telescopic rod, can adjust the height of the air supply plate 63 and the limiting plate 65, that is, adjust the thickness of the molding sand conveyed above the limiting magnet conveyor belt 3. The limiting plate 65 limits the thickness of the molding sand conveyed above the passing magnet conveyor belt 3, so that the molding sand is uniformly de-ironed and dried.

[0028] Furthermore, a guide plate 10 is provided inside the processing box 1 on the side away from the discharge box 4 below the discharge port 7. The guide plate 10 is located above the magnetic conveyor belt 3 and guides the molding sand discharged from the discharge port 7.

[0029] The usage method of this embodiment is as follows: The equipment is connected to the power supply and powered on. The molding sand to be processed is added into the processing cylinder 2 through the feed inlet 21. The first motor 26 drives the crushing rod 23 and the crushing knife 24 to rotate inside the processing cylinder 2. The molding sand is crushed in the processing cylinder 2 and screened through the screening screen 22. The cleaning brush 25 cleans the screening screen 22, realizing the integrated processing of molding sand crushing and screening. The screening is smooth. The molding sand after crushing and screening in the processing cylinder 2 enters the processing box 1 through the discharge port 7. The molding sand is guided by the guide plate 10 and falls above the magnetic conveyor belt 3. The second motor 33 drives the first roller 31 on the cleaning box 5 to rotate, driving the magnetic conveyor belt 3 wrapped between the first roller 31 and the second roller 32 to be transported in the cleaning box 5, the processing box 1 and the discharge box 4. The molding sand on the magnetic conveyor belt 3 is limited by the limiting plate 65. The magnetic conveyor belt 3 is used to guide the molding sand. Iron filings in the sand are magnetically attracted, and the magnetic conveyor belt 3 transports the molding sand to the discharge box 4. The molding sand is then transported from the output end of the magnetic conveyor belt 3 to the storage box 41 of the discharge box 4. The iron filings magnetically attracted on the magnetic conveyor belt 3 are transported to the interior of the cleaning box 5. When the magnetic conveyor belt 3 passes the scraper 8, the scraper 8 scrapes the iron filings on the magnetic conveyor belt 3 into the waste drawer 9 of the cleaning box 5, thus removing iron from the molding sand. Iron removal, cleaning, and collection of molding sand are convenient. During the process of the molding sand being uniformly transported in the processing box 1 by the magnetic conveyor belt 3, under the action of the circulating fan 6, the air in the processing box 1 is transported from the exhaust port 61 to the electric heater 62 through the air duct. After being heated by the electric heater 62, the air is transported to the air supply plate 63 through the air duct. Air is then supplied to the molding sand on the magnetic conveyor belt 3 through the air supply port on the air supply plate 63, thus realizing the circulating air supply and drying treatment of the molding sand for iron removal.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sand treatment device comprising a treatment tank (1), characterized in that: The processing cylinder (2) is mounted on the top of one end of the processing box (1) via a bracket. A pre-treatment mechanism is mounted on the processing cylinder (2). An inlet (21) is located at the top of the processing cylinder (2), and a discharge port (7) is located at the bottom of the processing cylinder (2). The discharge port (7) is connected to the top of the processing box (1). A cleaning box (5) is located on one side of the processing box (1), and a discharge box (4) is located on the other side of the processing box (1). A first roller (…) is rotatably mounted inside the cleaning box (5). 31), the second motor (33) drives the first roller (31) to work. The discharge box (4) is equipped with the second roller (32). A magnetic conveyor belt (3) is wrapped between the first roller (31) and the second roller (32). The processing box (1) is equipped with conveying ports on both sides. The magnetic conveyor belt (3) passes through the processing box (1) through the conveying port. The cleaning box (5) is equipped with a cleaning mechanism. The processing box (1) above the magnetic conveyor belt (3) is equipped with a drying mechanism.

2. The molding sand treatment apparatus according to claim 1, characterized by: The pretreatment mechanism includes a screening screen (22), a crushing rod (23), a crushing knife (24), a cleaning brush (25), and a No. 1 motor (26). The screening screen (22) is located at the lower end of the inside of the treatment cylinder (2). The crushing rod (23) is located inside the treatment cylinder (2) above the screening screen (22). The No. 1 motor (26) is located at the top of the treatment cylinder (2). The No. 1 motor (26) drives the crushing rod (23) to rotate. The crushing knife (24) is located on the crushing rod (23). The cleaning brush (25) is located at the lower end of one side of the crushing rod (23).

3. The molding sand treatment apparatus according to claim 1, characterized by: The cleaning mechanism includes a scraper (8), a support plate (81), and a waste drawer (9). The scraper (8) is provided inside the cleaning box (5) on the side of the first roller (31) away from the processing box (1) via the support plate (81). The scraper (8) is provided on the side away from the support plate (81) corresponding to the magnetic conveyor belt (3). The waste drawer (9) is provided inside the cleaning box (5) below the magnetic conveyor belt (3) via the drawer slot.

4. The molding sand treatment apparatus according to claim 1, characterized by: The drying mechanism includes a circulating fan (6), an exhaust port (61), an electric heater (62), an air supply plate (63), and a support rod (64). The top of the processing box (1) is equipped with a circulating fan (6) and an electric heater (62). The top of the processing box (1) near the discharge box (4) is equipped with an exhaust port (61). The processing box (1) above the magnetic conveyor belt (3) is equipped with an air supply plate (63) through the support rod (64). The bottom of the air supply plate (63) is equipped with several evenly distributed air supply ports. The exhaust port (61) is connected to the input end of the circulating fan (6) through a duct. The output end of the circulating fan (6) is connected to the air inlet of the electric heater (62) through a duct. The air outlet of the electric heater (62) is connected to the air supply plate (63) through a duct.

5. The molding sand treatment apparatus of claim 1, wherein: The discharge box (4) below the second roller (32) has an opening on one side, and the discharge box (4) has a storage box (41) inside through the opening.

6. The molding sand treatment apparatus according to claim 4, characterized by: The support rod (64) is an electric telescopic rod, the air duct above the air supply plate (63) is a corrugated pipe, and a limiting plate (65) is provided at one end of the air supply plate (63) near the discharge port (7).

7. The molding sand treatment apparatus of claim 1, wherein: The processing box (1) located below the discharge port (7) on the side away from the discharge box (4) is equipped with a guide plate (10), which is positioned above the magnetic conveyor belt (3).

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