A vertical grinding and de-agglomerating machine for foundry sand

Abstract

The utility model discloses a vertical grinding sand loosening machine for casting, including sand loosening machine: sand loosening machine's feed port is equipped with the feed hopper, both ends of one side of feed hopper are all fixedly connected with the frame, and one end of two connecting frames is fixedly provided with the shaft seat, the utility model discloses the gear and the rack of the both sides of first downcomer two sides and the second downcomer two sides are engaged, and the gear rotation drives the second downcomer to move horizontally, thereby changing the overall length of whole downcomer chute, and moreover the whole chute can be driven to carry out the angle adjustment through the electric hydraulic cylinder, and the chute length can be adjusted according to actual needs, shortens the chute and is suitable for rapid downcomer, improves the flow, prolongs the chute and is suitable for slow even downcomer, ensures the flow control, and the chute angle adjustment can be adapted to different flow rate demand, and the lightweight sand material can reduce the angle and prevent too fast, and the heavy sand material can increase the angle and ensure smooth flow.

Description

Technical Field

[0001] This utility model relates to a vertical grinding and sand loosening machine, and more particularly to a vertical grinding and sand loosening machine for casting. Background Technology

[0002] A vertical grinding and loosening sand machine is a specialized piece of equipment used in the foundry industry. It is primarily used to grind and loosen agglomerated sand clumps recovered during the casting process, restoring their fluidity for subsequent reuse or transportation. This equipment is widely used in sand processing in foundry workshops and is an important tool for improving the recycling rate of sand resources.

[0003] Fixed length and angle slides are only suitable for specific material flow characteristics and are difficult to adapt to different types of sand, such as wet sand, dry sand, or sand clumps with different particle sizes. Moreover, a fixed angle may cause wet sand or sticky materials to accumulate in the slide due to insufficient gravity, and a fixed length may result in insufficient or excessive material sliding distance, increasing the risk of blockage.

[0004] It should be noted that the above content falls within the scope of the technical knowledge of the utility model owner and does not necessarily constitute prior art. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this invention is to provide a vertical grinding and sand-loosening machine for casting.

[0006] To achieve the above objectives, this utility model proposes a vertical grinding and sand loosening machine for casting, including a sand loosening machine:

[0007] The sand loosening machine is connected to a feed hopper at its feed inlet;

[0008] Both ends of one side of the feed hopper are fixed with connecting frames, and one end of each connecting frame is fixed with a bearing seat. The two bearing seats are rotatably connected to the middle position of both sides of the first feed plate. Both sides of the bottom of the first feed plate are fixed with side frames. One end of each side of the two side frames is provided with a slot. The two sides of the inner wall of the two slots are rotatably connected to the two ends of the gears. One side of each gear meshes with a corresponding rack. One side of each rack is fixedly connected to both ends of the second feed plate. The bottom of the first feed plate is provided with a self-locking structure.

[0009] In one example, the self-locking structure includes a toothed assembly fixedly disposed at the bottom end of the first feeding tray. The toothed assembly engages with a locking strip. The two sides of the bottom end of the locking strip are fixedly connected to the top ends of two springs. The bottom ends of the two springs are fixedly disposed on both sides of the bottom end of the inner wall of the strip groove. The strip groove is located at the middle position of the top end of the movable side plate. The two ends of one side of the movable side plate are slidably connected to the top ends of the two ends of one side of the second feeding tray. A horizontal bar is fixedly disposed at the bottom of one side of the second feeding tray. Electric telescopic rods are inserted through both sides of the top end of the horizontal bar. The telescopic ends of the two electric telescopic rods are fixedly connected to the two sides of the bottom end of the movable side plate.

[0010] In one example, a slot is formed on one side of one of the side frames near the slot, and a drive motor is fixedly installed inside the slot. The output end of the drive motor is fixedly connected to the top of one of the gears.

[0011] In one example, two first connecting ears are symmetrically fixed in the middle of one side of the feed hopper. The two first connecting ears are hinged to one end of the corresponding electric hydraulic cylinder. The telescopic ends of the two electric hydraulic cylinders are hinged to the corresponding second connecting ears. The top ends of the two second connecting ears are fixedly connected to both sides of the bottom end of the first feeding plate.

[0012] In one example, a switch panel is fixedly provided on the side wall of the sand loosening machine. An electric hydraulic cylinder switch, a drive motor switch, and an electric telescopic rod switch are respectively fixedly provided on the surface of the switch panel. The electric hydraulic cylinder, drive motor, and electric telescopic rod are electrically connected to an external power source through the electric hydraulic cylinder switch, drive motor switch, and electric telescopic rod switch, respectively.

[0013] The vertical grinding and sand loosening machine for casting proposed in this utility model can bring the following beneficial effects:

[0014] This invention utilizes the meshing of gears on both sides of the first feeding disc and racks on both sides of the second feeding disc. As the gears rotate, they drive the second feeding disc to move laterally, thereby changing the overall length of the feeding chute. Furthermore, the entire chute can be driven by an electric hydraulic cylinder to adjust its angle. The chute length can be adjusted according to actual needs; shortening the chute is suitable for rapid feeding and increased flow rate; extending the chute is suitable for slow and uniform feeding, ensuring flow control. The chute angle adjustment can adapt to different flow rate requirements. Lightweight sand can have its angle reduced to prevent excessive speed, while heavy sand can have its angle increased to ensure smooth flow. The adjustable length allows for a more reasonable sand sliding distance, reducing accumulation or stagnation. Adjusting the angle prevents sand from getting stuck due to an excessively small angle or from concentrating material impact due to an excessively large angle, thus improving the material flow state. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the first and second feeding trays of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the electric hydraulic cylinder of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the bottom of the first feeding tray and the top of the second feeding tray of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Sand loosening machine; 2. Feed hopper; 3. Second discharge plate; 4. First discharge plate; 5. Connecting frame; 6. Shaft seat; 7. Side frame; 8. Gear; 9. Slot; 10. Drive motor; 11. Rack; 12. First connecting lug; 13. Electric hydraulic cylinder; 14. Second connecting lug; 15. Gear assembly; 16. Strip groove; 17. Locking strip; 18. Spring; 19. Movable side plate; 20. Crossbar; 21. Electric telescopic rod. Detailed Implementation

[0022] To more clearly illustrate the overall concept of this utility model, a detailed description is provided below with reference to the accompanying drawings.

[0023] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] like Figures 1-5 As shown, an embodiment of this utility model proposes a vertical grinding and sand loosening machine for casting, including a sand loosening machine 1:

[0025] The feed hopper 2 is connected to the feed inlet of the sand loosening machine 1;

[0026] Both ends of one side of the feed hopper 2 are fixedly provided with connecting brackets 5, and one end of each of the two connecting brackets 5 is fixedly provided with a bearing seat 6. The two bearing seats 6 are rotatably connected to the middle position of both sides of the first feed plate 4. Both sides of the bottom end of the first feed plate 4 are fixedly provided with side brackets 7. One end of each side of the two side brackets 7 is provided with a slot 9. The two sides of the inner wall of the two slots 9 are rotatably connected to the two ends of the gears 8. One side of each gear 8 meshes with the corresponding rack 11. One side of each rack 11 is fixedly connected to the two ends of the second feed plate 3. The bottom end of the first feed plate 4 is provided with a self-locking structure.

[0027] Specifically, the self-locking structure includes a toothed assembly 15 fixedly disposed at the bottom end of the first feeding tray 4. The toothed assembly 15 is engaged with the locking strip 17. The two sides of the bottom end of the locking strip 17 are fixedly connected to the top ends of two springs 18. The bottom ends of the two springs 18 are fixedly disposed on both sides of the bottom end of the inner wall of the strip groove 16. The strip groove 16 is opened at the middle position of the top end of the movable side plate 19. The two ends of one side of the movable side plate 19 are slidably connected to the top ends of the two ends of one side of the second feeding tray 3. A horizontal bar 20 is fixedly disposed at the bottom of one side of the second feeding tray 3. Electric telescopic rods 21 are inserted through both sides of the top end of the horizontal bar 20. The telescopic ends of the two electric telescopic rods 21 are fixedly connected to the two sides of the bottom end of the movable side plate 19.

[0028] Specifically, one of the side frames 7 has a slot at one end near the slot 9, and a drive motor 10 is fixedly installed inside the slot. The output end of the drive motor 10 is fixedly connected to the top of one of the gears 8.

[0029] Specifically, two first connecting ears 12 are symmetrically fixed in the middle of one side of the feed hopper 2. The two first connecting ears 12 are hinged to one end of the corresponding electric hydraulic cylinder 13. The telescopic ends of the two electric hydraulic cylinders 13 are hinged to the corresponding second connecting ears 14. The top ends of the two second connecting ears 14 are fixedly connected to both sides of the bottom end of the first feed plate 4.

[0030] Specifically, a switch panel is fixedly provided on the side wall of the sand loosening machine 1. An electric hydraulic cylinder switch, a drive motor switch, and an electric telescopic rod switch are respectively fixedly provided on the surface of the switch panel. The electric hydraulic cylinder 13, the drive motor 10, and the electric telescopic rod 21 are electrically connected to an external power source through the electric hydraulic cylinder switch, the drive motor switch, and the electric telescopic rod switch, respectively.

[0031] Working principle: Sand is poured into the feed hopper 2 and enters the first discharge plate 4 through the lower opening of the feed hopper 2. After the chute is adjusted, when rapid discharge is required, the drive motor 10 drives the gear 8 to rotate, so that the gear 8 meshes with the rack 11, driving the second discharge plate 3 to move closer to the first discharge plate 4, thereby shortening the chute length, reducing the sand sliding distance, and speeding up the discharge. When slow and uniform discharge is required, the second discharge plate 3 is moved away from the first discharge plate 4 by operating in the opposite direction, extending the chute length, making the sand sliding process more uniform and suitable for flow control. By adjusting the length of the telescopic end of the electric hydraulic cylinder 13, the tilt angle of the first discharge plate 4 is controlled. For light sand, the tilt angle is reduced to avoid sand accumulation caused by excessively fast discharge. For heavy sand, the tilt angle is increased to ensure smooth sand flow and prevent blockage.

[0032] The first feeding tray 4, through its self-locking structure at the bottom, achieves stable sliding by engaging the locking tooth assembly 15 with the locking strip 17, ensuring the stability of the entire device during operation. The locking tooth assembly 15 is fixedly installed at the bottom of the first feeding tray 4 and engages with the locking strip 17 in the strip groove 16 on the movable side plate 19. Under the action of the spring 18, the locking strip 17 is always kept in an upward-push-up state, tightly fitting with the locking tooth assembly 15, ensuring the fixed position between the first feeding tray 4 and the second feeding tray 3. Under the pressure of the spring 18, the locking tooth assembly 15 and the locking strip 17 form a self-locking mechanism. In the locked state, the angle and length of the entire slide are locked to prevent the slide from sliding or loosening. When it is necessary to adjust the angle or length of the slide, the movement of the electric telescopic rod 21 is controlled to drive the movable side plate 19 to move down, and the locking tooth group 15 and the locking strip 17 are disengaged. After the self-locking structure is unlocked, the angle and length of the slide are no longer restricted. The first feeding plate 4 and the second feeding plate 3 can be adjusted as needed. After adjusting the angle or length of the slide, the movement of the electric telescopic rod 21 is controlled to move in the opposite direction, causing the movable side plate 19 to move up, and the locking strip 17 to move closer to the locking tooth group 15.

[0033] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0034] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A vertical grinding and sand loosening machine for casting, comprising a sand loosening machine (1): The sand loosening machine (1) is connected to a feed hopper (2) at its feed inlet; Its features are: Both ends of one side of the feed hopper (2) are fixedly provided with connecting frames (5), and one end of the two connecting frames (5) is fixedly provided with a bearing seat (6). The two bearing seats (6) are rotatably connected to the middle position of both sides of the first feed plate (4). Both sides of the bottom end of the first feed plate (4) are fixedly provided with side frames (7). One end of both sides of the two side frames (7) is provided with a slot (9). Both sides of the inner wall of the two slots (9) are rotatably connected to the two ends of the gears (8). One side of the two gears (8) meshes with the corresponding rack (11). One side of the two racks (11) is fixedly connected to the two ends of the second feed plate (3). The bottom end of the first feed plate (4) is provided with a self-locking structure.

2. The vertical grinding and sand loosening machine for casting according to claim 1, characterized in that: The self-locking structure includes a toothed assembly (15) fixedly installed at the bottom of the first feeding tray (4). The toothed assembly (15) is engaged with the toothed strip (17). The two sides of the bottom of the toothed strip (17) are fixedly connected to the top of two springs (18). The bottom of the two springs (18) is fixedly installed on both sides of the bottom of the inner wall of the strip groove (16). The strip groove (16) is opened at the middle position of the top of the movable side plate (19). The two ends of one side of the movable side plate (19) are slidably connected to the top of the two ends of one side of the second feeding tray (3). A horizontal bar (20) is fixedly provided at the bottom of one side of the second feeding tray (3). Electric telescopic rods (21) are inserted on both sides of the top of the horizontal bar (20). The telescopic ends of the two electric telescopic rods (21) are fixedly connected to the two sides of the bottom of the movable side plate (19).

3. A vertical grinding and sand loosening machine for casting according to claim 2, characterized in that: One of the side frames (7) has an organic groove at one end near the slot (9), and a drive motor (10) is fixedly installed inside the groove. The output end of the drive motor (10) is fixedly connected to the top of one of the gears (8).

4. A vertical grinding and sand loosening machine for casting according to claim 1, characterized in that: Two first connecting ears (12) are symmetrically fixed in the middle of one side of the feed hopper (2). The two first connecting ears (12) are hinged to one end of the corresponding electric hydraulic cylinder (13). The telescopic ends of the two electric hydraulic cylinders (13) are hinged to the corresponding second connecting ears (14). The top ends of the two second connecting ears (14) are fixedly connected to both sides of the bottom end of the first feed plate (4).

5. A vertical grinding and sand loosening machine for casting according to claim 4, characterized in that: The side wall of the sand loosening machine (1) is fixedly provided with a switch panel. The surface of the switch panel is respectively fixed with an electric hydraulic cylinder switch, a drive motor switch and an electric telescopic rod switch. The electric hydraulic cylinder (13), the drive motor (10) and the electric telescopic rod (21) are electrically connected to an external power source through the electric hydraulic cylinder switch, the drive motor switch and the electric telescopic rod switch respectively.

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