A water curtain cabinet for workpiece grinding

Abstract

This utility model relates to the field of water curtain cabinet technology, and in particular to a water curtain cabinet for workpiece grinding. It includes a cabinet body with a grinding station. A first air intake is located behind the grinding station, and a first rain curtain is installed at the first air intake. A second air intake is located below the grinding station, and a second rain curtain is installed at the second air intake. The cabinet body is equipped with a suction adjustment component capable of adjusting the suction power of the first and second air intakes. By setting the first and second air intakes, two independent suction and dust removal paths are formed, improving the dust collection range and direction control capability, and allowing for flexible adjustment of the dust removal method according to the specific gravity and movement state of the dust.

Description

Technical Field

[0001] This utility model relates to the field of water curtain cabinet technology, and in particular to a water curtain cabinet for workpiece grinding. Background Technology

[0002] Grinding is a common surface treatment process in metal processing, machinery manufacturing, and woodworking, playing a crucial role in deburring, polishing, and dimensional correction. However, grinding often generates a large amount of particulate dust, including metal powder, wood chips, ceramic fragments, and composite material particles. This dust not only pollutes the workshop environment but also endangers the health of operators and may even pose safety hazards such as fires or explosions. Therefore, the installation of efficient dust collection devices has become an indispensable part of the grinding station.

[0003] Currently, the most commonly used dust removal equipment in industrial sites is the water curtain dust collector. This device typically has a water curtain wall above or behind the grinding station, supplemented by a negative pressure fan to form an air suction zone. Dust generated during grinding is drawn in with the airflow, intercepted and settled by the water curtain, thus purifying the air. This type of structure has a certain dust suppression capacity, and the water curtain reduces dust re-entrainment, making it a relatively common dust removal solution for grinding.

[0004] However, traditional water curtain dust removal cabinets mostly use a single top or rear top suction method (such as the public announcement number: CN214213442U, single rear top suction). Their negative pressure area is concentrated in the upper part of the grinding area. This is effective when dealing with light, easily suspended dust (such as wood dust and plastic dust), but for heavy particles or high-density dust generated by metal grinding, because they are easy to settle quickly along the direction of gravity, they are often deposited on the grinding table or floor before entering the negative pressure suction area, resulting in a significant reduction in dust removal efficiency. Utility Model Content

[0005] The purpose of this invention is to solve the problem of reduced dust removal efficiency caused by using a single suction method when the dust weight is different in the existing technology, and to propose a water curtain cabinet for workpiece grinding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A water curtain cabinet for workpiece grinding includes a cabinet body with a grinding station. The cabinet body has a first air intake behind the grinding station and a first rain curtain at the first air intake. The cabinet body has a second air intake below the grinding station and a second rain curtain at the second air intake. The cabinet body is equipped with a suction adjustment component that can adjust the suction power of the first air intake and the second air intake.

[0007] The water curtain cabinet for workpiece grinding proposed in this utility model has the following advantages: by setting a first air inlet and a second air inlet, and cooperating with a first rain curtain and a second rain curtain respectively, two independent air suction and dust removal paths are formed, which improves the dust collection range and directional control capability; by using a suction adjustment component to dynamically distribute the suction force of the first air inlet and the second air inlet, the dust removal mode can be flexibly adjusted according to the specific gravity and movement state of the dust, which solves the technical problem in the prior art that a single air suction direction cannot take into account both light and heavy dust. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the first state structure of this utility model; Figure 2 This is a schematic diagram of the second state structure of this utility model.

[0009] In the diagram: 1. Drain hole; 2. Sinking adsorption chamber; 3. First channel; 4. First hinge; 5. Slider; 6. Valve plate; 7. Second hinge; 8. Negative pressure fan; 9. Main channel; 10. Cabinet; 11. Push-pull rod; 12. Adjusting valve; 13. Second channel; 14. First rain curtain; 15. Grinding station; 16. Water collection box; 18. Second rain curtain; 19. First air intake; 20. Second air intake; 21. Partition. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0011] Reference Figures 1-2 A water curtain cabinet for workpiece grinding includes a cabinet body 10, a grinding station 15, a first air intake 19 located behind the grinding station 15, a first rain curtain 14 located at the first air intake 19, a second air intake 20 located below the grinding station 15, a second rain curtain 18 located at the second air intake 20, and a suction force adjustment component that can adjust the suction force of the first air intake 19 and the second air intake 20.

[0012] When a workpiece is processed at the grinding station 15, the generated dust disperses in the space. The suction power of the first suction port 19 and the second suction port 20 is distributed by the suction power adjustment component, so that the device can adjust the dust removal mode according to the mass of dust.

[0013] If the dust generated during the sanding process is light dust, such as plastic shavings or wood chips, this type of dust is easy to float in the space with the airflow and does not easily sink. At this time, the suction power of the first air intake 19 is increased and the suction power of the second air intake 20 is reduced by the suction power adjustment component, so as to enhance the negative pressure above and more effectively suck in the floating dust, and the dust is wetly intercepted by the first rain curtain 14.

[0014] If the dust generated during the grinding process is heavy dust, such as metal particles or ceramic fragments, this type of dust tends to settle quickly along the direction of gravity. At this time, the suction adjustment component can be adjusted to increase the suction of the second air inlet 20 and decrease the suction of the first air inlet 19, thereby improving the bottom absorption efficiency. After the dust falls, it is quickly sucked in by the negative pressure at the ground and the settled dust is captured by the second rain curtain 18.

[0015] The inhaled dust-laden airflow is intercepted by the liquid films of the first rain curtain 14 and the second rain curtain 18. After the dust comes into contact with the water droplets, it settles into the water tank area, realizing wet dust removal and gas purification, and avoiding dust backflow and diffusion.

[0016] By setting up a first air intake 19 and a second air intake 20, and cooperating with a first rain curtain 14 and a second rain curtain 18 respectively, two independent air intake and dust removal paths are formed, which improves the dust collection range and directional control capability. By using a suction adjustment component to dynamically distribute the suction power of the first air intake 19 and the second air intake 20, the dust removal mode can be flexibly adjusted according to the specific gravity and movement state of the dust, which solves the technical problem in the prior art that a single air intake direction cannot take into account both light and heavy dust.

[0017] The suction adjustment component includes an adjustment valve 12, a main channel 9, a first channel 3, and a second channel 13 located inside the cabinet 10. A negative pressure fan 8 is installed above the main channel 9 in the cabinet 10. The first channel 3 is connected to the main channel 9 at the top and to the first air intake 19 at the bottom. The second channel 13 is connected to the main channel 9 at the top and to the second air intake 20 at the bottom. The adjustment valve 12 can adjust the airflow between the first channel 3 and the second channel 13 and the main channel 9, respectively.

[0018] During operation, the negative pressure fan 8 generates suction, which is transmitted to the first channel 3 and the second channel 13 through the main channel 9. The operator adjusts the suction ratio between the first channel 3 and the second channel 13 by adjusting the position of the regulating valve 12 according to the weight characteristics of the dust.

[0019] Specifically, the regulating valve 12 includes a valve plate 6 and an adjusting component. Inside the cabinet 10, there is a partition 21 located between the first channel 3 and the second channel 13. The bottom of the valve plate 6 is rotatably connected to the partition 21 through the first hinge 4. The adjusting component can make the valve plate 6 tilt upwards towards the first channel 3 or towards the second channel 13.

[0020] Inside the cabinet 10, a partition 21 is provided between the first channel 3 and the second channel 13. The partition 21 serves as a supporting reference structure. The bottom of the valve plate 6 is rotatably connected to the partition 21 through the first hinge 4, so that the valve plate 6 can swing around the first hinge 4.

[0021] The adjusting element is connected to the side of the valve plate 6 and is used to drive the valve plate 6 to tilt in two directions. In actual operation... Figure 1 As shown, when the regulating component drives the valve plate 6 to tilt towards the first channel 3, the airflow channel at the upper end of the first channel 3 is partially blocked, thereby reducing the airflow of the first channel 3. The second channel 13 remains unobstructed, and most of the negative pressure flow in the main channel 9 enters the first air intake 19 through the second channel 13, enhancing the suction force above.

[0022] Conversely, refer to Figure 2 When the regulating component drives the valve plate 6 to tilt towards the second channel 13, the upper channel of the second channel 13 is partially blocked, the suction of the first intake port 19 is weakened, while the first channel 3 remains unobstructed. The negative pressure airflow in the main channel 9 mainly enters the second intake port 20 through the first channel 3, thereby enhancing the lower suction.

[0023] By adjusting the angle of the valve plate 6 in the regulating valve 12, the dynamic control of the air flow distribution of the main channel 9 to the first channel 3 and the second channel 13 is realized. The structure is simple and easy to use.

[0024] As one implementation method, refer to Figure 1 , Figure 2 The adjusting component includes a slider 5 slidably connected to the side of the valve plate 6. A push-pull mechanism is installed between the slider 5 and the cabinet 10. The push-pull mechanism includes a push-pull rod 11, which is threadedly connected to the cabinet 10. One end of the push-pull rod 11 is located inside the cabinet 10, and the other end is located outside the cabinet 10. The end of the push-pull rod 11 located inside the cabinet 10 is connected to a second hinge 7. The second hinge 7 includes a first end and a second end, which are rotatably connected by a pin. The first end of the second hinge 7 is fixed to the slider 5, and the second end of the second hinge 7 is rotatably connected to the push-pull rod 11. By rotating the push-pull rod 11, the threaded action causes the push-pull rod 11 to push and pull the slider 5, which in turn causes the valve plate 6 to rotate around the first hinge 4.

[0025] In one embodiment, the adjusting component includes a slider 5 slidably connected to the side of the valve plate 6, and a push-pull mechanism is installed between the slider 5 and the cabinet 10; the push-pull mechanism includes an electric telescopic rod, the cylinder of which is fixed to the cabinet 10, and the piston rod of which is rotatably connected to the slider 5. By pushing and pulling the slider 5 with the electric telescopic rod, the valve plate 6 is driven to rotate around the first hinge 4.

[0026] The cabinet 10 is located below the polishing station 15 and has a sinking adsorption chamber 2. The second air intake 20 has a mesh structure. The sinking adsorption chamber 2 is located between the second air intake 20 and the first channel 3 and a second rain curtain 18 is set. The second rain curtain 18 includes a water collection box 16 and a guide plate 17 located at the bottom of the water collection box 16. The bottom of the water collection box 16 has a rain curtain drip slit. The top of the water collection box 16 is open and the liquid dripping from the first rain curtain 14 can enter the water collection box 16. The bottom wall of the sinking adsorption chamber 2 has an inclined structure and a drain hole 1 is opened at the lowest end of the sinking adsorption chamber 2.

[0027] The second air intake 20 is located above the sinking adsorption chamber 2 and has a mesh structure, which can both ventilate and absorb dust, and prevent larger foreign objects from directly entering the channel. The sinking adsorption chamber 2 is located between the second air intake 20 and the first channel 3, and a second rain curtain 18 is installed inside it.

[0028] The top of the water collection box 16 is open, allowing it to directly receive the water dripping from the first rain curtain 14. When the water droplets from the first rain curtain 14 fall into the water collection box 16, the water accumulated in the water collection box 16 will drip down through the rain curtain drip seams at the bottom, forming a second rain curtain 18. Since the second rain curtain 18 can receive the first rain curtain 14, only the first rain curtain 14 needs to be filled with water.

[0029] The bottom wall of the sinking adsorption chamber 2 is inclined, which facilitates the collection of wastewater containing dust particles captured by the water curtain and mixed with water, concentrating it at the lowest point. A drain hole 1 is provided at the lowest end of the sinking adsorption chamber 2 to promptly discharge the deposited liquid, prevent water overflow or blockage, and maintain stable system operation. The further drainage hole 1 is connected to the impurity filter. The water filtered by the filter is pumped back to the first rain curtain 14. The first rain curtain 14 can also be a water collection box with rain curtain drip slits at the bottom. Of course, this device does not limit the specific structure of the first rain curtain 14 and the second rain curtain 18. Of course, the first rain curtain 14 and the second rain curtain 18 can also be two separate rain curtain systems, as long as they can meet the usage requirements of this device.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A workpiece polishing wet bench comprising a cabinet (10) having a polishing station (15), characterized in that, The cabinet (10) has a first air intake (19) behind the polishing station (15), and a first rain curtain (14) is provided at the first air intake (19). The cabinet (10) has a second air intake (20) below the polishing station (15), and a second rain curtain (18) is provided at the second air intake (20). The cabinet (10) is provided with a suction adjustment component, which can adjust the suction power of the first air intake (19) and the second air intake (20).

2. A workpiece polishing sink according to claim 1, wherein, The suction adjustment component includes an adjustment valve (12), a main channel (9), a first channel (3), and a second channel (13) located inside the cabinet (10). The cabinet (10) is equipped with a negative pressure fan (8) above the main channel (9). The first channel (3) is connected to the main channel (9) at the top and to the first air intake (19) at the bottom. The second channel (13) is connected to the main channel (9) at the top and to the second air intake (20) at the bottom. The adjustment valve (12) can adjust the airflow between the first channel (3) and the second channel (13) and the main channel (9), respectively.

3. A workpiece polishing sink according to claim 2, wherein, The regulating valve (12) includes a valve plate (6) and an adjusting component. The cabinet (10) has a partition (21) located between the first channel (3) and the second channel (13). The bottom of the valve plate (6) is rotatably connected to the partition (21) through a first hinge (4). The adjusting component can make the valve plate (6) tilt upwards towards the first channel (3) or towards the second channel (13).

4. A workpiece polishing sink according to claim 3, wherein, The adjusting component includes a slider (5) that is slidably connected to the side of the valve plate (6), and a push-pull mechanism is installed between the slider (5) and the cabinet (10).

5. A workpiece polishing sink according to claim 4, wherein, The push-pull mechanism includes a push-pull rod (11), which is threadedly connected to the cabinet (10). One end of the push-pull rod (11) is located inside the cabinet (10), and the other end is located outside the cabinet (10). The end of the push-pull rod (11) located inside the cabinet (10) is connected to a second hinge (7). The second hinge (7) includes a first end and a second end, which are rotatably connected by a pin. The first end of the second hinge (7) is fixed to the slider (5), and the second end of the second hinge (7) is rotatably connected to the push-pull rod (11).

6. A workpiece polishing sink according to claim 4, wherein, The push-pull mechanism includes an electric telescopic rod, the cylinder of which is fixed to the cabinet (10), and the piston rod of which is rotatably connected to the slider (5).

7. A workpiece polishing sink according to any one of claims 2-6, wherein, The cabinet (10) has a sinking adsorption chamber (2) located below the polishing station (15). The second air intake (20) has a mesh structure. The sinking adsorption chamber (2) is located between the second air intake (20) and the first channel (3) and the second rain curtain (18) is provided.

8. A workpiece polishing sink according to claim 7, wherein, The second rain curtain (18) includes a water collection box (16) and a guide plate (17) located at the bottom of the water collection box (16). The bottom of the water collection box (16) has a rain curtain drip slit. The top of the water collection box (16) is open, and the liquid dripping from the first rain curtain (14) can enter the water collection box (16). The bottom wall of the sinking adsorption chamber (2) is an inclined structure, and a drain hole (1) is opened at the lowest end of the sinking adsorption chamber (2).

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