Precoated sand crushing and screening device
By designing a combined structure of crushing cylinder, rotating plate and grinding crushing plate, the problem of poor crushing effect in existing coated sand crushing devices is solved, achieving efficient crushing and screening of coated sand and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIU JING MASCH EQUIP (LIYANG) CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-01
AI Technical Summary
The existing coated sand crushing device has a simple structure, resulting in poor crushing effect, requiring multiple crushing operations, which affects work efficiency and is not conducive to subsequent screening work.
A film-coated sand crushing and screening device was designed, comprising a crushing cylinder, a rotating plate, a hydraulic rod, a drive motor, and a grinding and crushing plate. The crushing effect is improved by the combination of extrusion and grinding crushing troughs, and efficient crushing and screening are achieved by the rotation of the rotating plate and the screening structure of the screen.
It improves the crushing efficiency and effect of coated sand, simplifies the screening process, and ensures the stability and efficient operation of the equipment.
Smart Images
Figure CN224182005U_ABST
Abstract
Description
A film-coated sand crushing and screening device Technical Field
[0001] This utility model belongs to the field of coated sand production technology, and in particular relates to a coated sand crushing and screening device. Background Technology
[0002] Coated sand is molding sand or core sand with a solid resin film coated on the surface of the sand grains before molding. There are two coating processes: cold and hot. The cold process involves dissolving the resin in ethanol and adding hexamethylenetetramine during sand mixing, causing both to coat the sand grains. The ethanol evaporates, resulting in coated sand. The hot process involves preheating the sand to a certain temperature, adding resin to melt it, stirring to coat the sand grains with resin, adding a hexamethylenetetramine aqueous solution and lubricant, cooling, crushing, and sieving to obtain coated sand. It is used for cast steel and cast iron parts.
[0003] In the existing technology, the crushing structure of the crushing device used for coated sand is generally simple, and the crushing effect of coated sand is poor. It needs to be crushed multiple times, which affects the working efficiency of the device and the subsequent screening work. Therefore, a coated sand crushing and screening device is proposed to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to provide a film-coated sand crushing and screening device to solve existing problems.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a device for crushing and screening coated sand, comprising a crushing cylinder and a rotating plate. A rotating shaft is rotatably installed inside the crushing cylinder, and the rotating plate is welded to the circumferential side of the rotating shaft. By flipping the rotating plate, the crushed coated sand falls onto the screen for subsequent screening. A grinding and crushing groove is formed on the upper surface of the rotating plate. Second mounting plates are welded to two opposite surfaces of the crushing cylinder, and hydraulic rods are welded to the upper surfaces of the two second mounting plates. A top plate is welded to the upper surface of the two hydraulic rods. A drive motor is fixedly installed on the upper surface of the top plate, and a drive shaft is installed at the output end of the drive motor. One end of the drive shaft extends below the top plate, and a grinding and crushing plate is welded to the other end of the drive shaft. This facilitates the crushing of the coated sand in conjunction with the grinding and crushing groove, and then the uniform rotation of the grinding and crushing plate gradually crushes the coated sand inside the grinding and crushing groove, improving the crushing effect and efficiency of the device for coated sand, thereby facilitating subsequent screening.
[0007] Furthermore, the grinding and crushing plate is positioned directly above the grinding and crushing trough, one end of the rotating shaft extends to the outside of the crushing cylinder, a first mounting plate is welded to one surface of the crushing cylinder, a rotating motor is welded to the upper surface of the first mounting plate, and the output end of the rotating motor is fixedly connected to one end of the rotating shaft.
[0008] Furthermore, the front and rear surfaces of the rotating plate are provided with slots, and the front and rear surfaces of the crushing cylinder are provided with opening slots, the positions of the two opening slots corresponding to the positions of the two slots.
[0009] Furthermore, a connecting plate is welded below each of the two opening slots. The two connecting plates are "L"-shaped plate structures. An electric push rod is welded to one surface of each of the two connecting plates, and a clamping plate is welded to one end of each of the two electric push rods.
[0010] Furthermore, the two plates extend into the slots through two openings, and the plates are slidably connected to the openings and slots to facilitate fixing the position of the rotating plate during use, prevent shaking, and ensure the stability of the rotating plate during use.
[0011] Furthermore, a third mounting plate is welded to the periphery of the crushing cylinder, and support plates are welded to both sides of the lower surface of the third mounting plate. A mounting frame is welded between the two support plates, and the mounting frame is located below the crushing cylinder.
[0012] Furthermore, a screen is installed on the bottom surface inside the mounting frame, a fourth mounting plate is welded to one surface of each of the two support plates, a vibrator is installed on the upper surface of each of the two fourth mounting plates, and the two vibrators are in contact with the lower surface of the screen.
[0013] Furthermore, a base plate is welded to the lower surface of the two support plates, and a collection box is slidably installed on the upper surface of the base plate, the collection box being disposed on the screen.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model uses a hydraulic rod, a drive motor, and a grinding and crushing plate structure to facilitate the first compression and crushing of coated sand in conjunction with the grinding and crushing tank. Then, through the uniform rotation of the grinding and crushing plate, the coated sand is gradually pulverized inside the grinding and crushing tank, which improves the pulverization effect and efficiency of the device for coated sand, thereby facilitating subsequent screening.
[0016] 2. This utility model uses an electric push rod and a clamping plate structure to easily fix the position of the rotating plate during use, avoid shaking, and ensure the stability of the rotating plate during use. At the same time, when the clamping plate is pulled out, the rotating plate is flipped by the rotating shaft and the rotating motor, so that the crushed coated sand falls onto the screen for subsequent screening.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 is a schematic diagram of the structure of a coated sand crushing and screening device according to the present invention.
[0020] Figure 2 is a front view schematic diagram of a film-coated sand crushing and screening device according to the present invention.
[0021] Figure 3 is a right-view structural schematic diagram of a coated sand crushing and screening device according to this utility model;
[0022] Figure 4 is a top view of the structure of a film-coated sand crushing and screening device according to this utility model.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Crushing cylinder; 2. Rotating shaft; 3. Rotating plate; 4. Grinding and crushing trough; 5. Rotating motor; 6. First mounting plate; 7. Second mounting plate; 8. Hydraulic rod; 9. Top plate; 10. Drive motor; 11. Drive shaft; 12. Grinding and crushing plate; 13. Connecting plate; 14. Opening slot; 15. Electric push rod; 16. Clamping plate; 17. Third mounting plate; 18. Support plate; 19. Mounting frame; 20. Screen; 21. Fourth mounting plate; 22. Vibrator; 23. Base plate; 24. Collection box. Detailed Implementation
[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.
[0027] Please refer to Figures 1-4. This utility model is a film-coated sand crushing and screening device, including a crushing cylinder 1 and a rotating plate 3. A rotating shaft 2 is rotatably installed inside the crushing cylinder 1. The rotating plate 3 is welded to the circumferential side of the rotating shaft 2. When the rotating plate 3 is flipped, the crushed film-coated sand falls onto the screen 20 for subsequent screening. A grinding and crushing groove 4 is opened on the upper surface of the rotating plate 3. Second mounting plates 7 are welded to two opposite surfaces of the crushing cylinder 1. Hydraulic rods 8 are welded to the upper surfaces of the two second mounting plates 7. A top plate 9 is welded to the top plate 9, and a drive motor 10 is fixedly installed on the upper surface of the top plate 9. A drive shaft 11 is installed at the output end of the drive motor 10. One end of the drive shaft 11 extends to the bottom of the top plate 9, and a grinding and crushing plate 12 is welded to the other end of the drive shaft 11. This facilitates the crushing of the coated sand in conjunction with the grinding and crushing tank 4. Then, through the uniform rotation of the grinding and crushing plate 12, the coated sand is gradually crushed inside the grinding and crushing tank 4, which improves the crushing effect and efficiency of the device on the coated sand, thereby facilitating the subsequent screening work.
[0028] The grinding and crushing plate 12 is positioned directly above the grinding and crushing trough 4. One end of the rotating shaft 2 extends to the outside of the crushing cylinder 1. A first mounting plate 6 is welded to one surface of the crushing cylinder 1. A rotating motor 5 is welded to the upper surface of the first mounting plate 6. The output end of the rotating motor 5 is fixedly connected to one end of the rotating shaft 2.
[0029] The front and rear surfaces of the rotating plate 3 are provided with slots, and the front and rear surfaces of the crushing cylinder 1 are provided with opening slots 14. The positions of the two opening slots 14 correspond to the positions of the two slots.
[0030] Below each of the two opening slots 14, there is a connecting plate 13. The two connecting plates 13 are "L" shaped plate structures. An electric push rod 15 is welded to one surface of each of the two connecting plates 13. A clamping plate 16 is welded to one end of each of the two electric push rods 15.
[0031] Two clamping plates 16 extend into the slot through two opening slots 14. The clamping plates 16 are slidably connected to the opening slots 14 and the slot, which facilitates fixing the position of the rotating plate 3 during use, avoids shaking, and ensures the stability of the rotating plate 3 during use.
[0032] A third mounting plate 17 is welded to the side of the crushing cylinder 1. Support plates 18 are welded to both sides of the lower surface of the third mounting plate 17. A mounting frame 19 is welded between the two support plates 18. The mounting frame 19 is located below the crushing cylinder 1.
[0033] A screen 20 is installed on the bottom surface inside the mounting frame 19. A fourth mounting plate 21 is welded to one surface of each of the two support plates 18. A vibrator 22 is installed on the upper surface of each of the two fourth mounting plates 21. The two vibrators 22 are in contact with the lower surface of the screen 20.
[0034] A base plate 23 is welded to the lower surface of the two support plates 18, and a collection box 24 is slidably installed on the upper surface of the base plate 23. The collection box 24 is set on the screen 20.
[0035] Please refer to Figures 1-4. This utility model is a coating sand crushing and screening device. Its usage is as follows: First, the coating sand to be crushed is fed from above the crushing cylinder 1 into the grinding and crushing trough 4. Then, the hydraulic rod 8 is activated and continuously descends, causing the grinding and crushing plate 12 to descend and crush the coating sand. The inside of the grinding and crushing trough 4 and the surface of the grinding and crushing plate 12 are both frosted. Then, the drive motor 10 is activated to drive the drive shaft 11 to rotate. The drive shaft 11 drives the grinding and crushing plate 12 to rotate and grind the coating sand. The grinding and crushing plate 12 is lowered at a constant speed by the hydraulic rod 8 according to the degree of crushing, so that the grinding and crushing plate 12 can thoroughly crush the coated sand at the bottom. Compared with the existing method of secondary crushing, the crushing effect is better. After crushing, the electric push rod 15 is activated, so that the clamping plate 16 is pulled out of the crushing cylinder 1 from the inside of the clamping slot. Then, the rotating motor 5 is activated to drive the rotating shaft 2 to rotate. The rotating shaft 2 drives the rotating plate 3 to flip, so that the coated sand falls onto the screen 20. Then, the vibrator 22 is activated to vibrate the screen 20, so that the screen 20 completes the screening work.
[0036] 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.
[0037] 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 the specific implementations described. 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 film-coated sand crushing and screening device, comprising a crushing cylinder (1) and a rotating plate (3), characterized in that: The crushing cylinder (1) is rotatably mounted with a rotating shaft (2). The rotating plate (3) is welded to the circumferential side of the rotating shaft (2). The upper surface of the rotating plate (3) is provided with a grinding and crushing groove (4). The crushing cylinder (1) is welded with two opposite surfaces. The upper surfaces of the two second mounting plates (7) are welded with hydraulic rods (8). The upper surfaces of the two hydraulic rods (8) are welded with a top plate (9). The upper surface of the top plate (9) is fixedly mounted with a drive motor (10). The output end of the drive motor (10) is equipped with a drive shaft (11). One end of the drive shaft (11) extends to the bottom of the top plate (9). The other end of the drive shaft (11) is welded with a grinding and crushing plate (12).
2. The coated sand crushing and screening device according to claim 1, characterized in that, The grinding and crushing plate (12) is positioned directly above the grinding and crushing trough (4). One end of the rotating shaft (2) extends to the outside of the crushing cylinder (1). A first mounting plate (6) is welded to one surface of the crushing cylinder (1). A rotating motor (5) is welded to the upper surface of the first mounting plate (6). The output end of the rotating motor (5) is fixedly connected to one end of the rotating shaft (2).
3. The coated sand crushing and screening device according to claim 1, characterized in that, The rotating plate (3) has slots on both its front and rear surfaces, and the crushing cylinder (1) has opening slots (14) on both its front and rear surfaces. The positions of the two opening slots (14) correspond to the positions of the two slots.
4. The coated sand crushing and screening device according to claim 3, characterized in that, A connecting plate (13) is welded below each of the two opening slots (14). The two connecting plates (13) are "L" shaped plate structures. An electric push rod (15) is welded to one surface of each of the two connecting plates (13). A clamping plate (16) is welded to one end of each of the two electric push rods (15).
5. The coated sand crushing and screening device according to claim 4, characterized in that, The two card plates (16) extend into the card slot through two opening slots (14), and the card plates (16) are slidably connected to the opening slots (14) and the card slot.
6. The coated sand crushing and screening device according to claim 1, characterized in that, A third mounting plate (17) is welded to the periphery of the crushing cylinder (1). Support plates (18) are welded to both sides of the lower surface of the third mounting plate (17). A mounting frame (19) is welded between the two support plates (18). The mounting frame (19) is located below the crushing cylinder (1).
7. The coated sand crushing and screening device according to claim 6, characterized in that, A screen (20) is installed on the bottom surface inside the mounting frame (19). A fourth mounting plate (21) is welded to one surface of each of the two support plates (18). A vibrator (22) is installed on the upper surface of each of the two fourth mounting plates (21). The two vibrators (22) are in contact with the lower surface of the screen (20).
8. The coated sand crushing and screening device according to claim 7, characterized in that, A base plate (23) is welded to the lower surface of the two support plates (18), and a collection box (24) is slidably installed on the upper surface of the base plate (23). The collection box (24) is set on the screen (20).