Dust-free polishing machine

Abstract

The utility model belongs to the technical field of environmental protection equipment, and provides a dust-free polishing machine which comprises a cabinet, a polishing mechanism and a dust removal mechanism, a polishing cavity is arranged on one side of the cabinet, the polishing mechanism is arranged in the polishing cavity, and the dust removal mechanism comprises a water tank arranged at the bottom of the cabinet, an air duct arranged in the cabinet and a fan arranged at the top of the cabinet. The bottom of the air channel communicates with the bottom of the polishing cavity through the wading cavity, the wading cavity communicates with the water tank, a flow guide part is arranged at the bottom of the air channel, an air suction opening is formed in the side, close to the flow guide part, of the polishing cavity, and a collecting opening is formed in the side, close to the flow guide part, of the water tank. One end of the first intercepting plate is connected with the side, close to the polishing cavity, of the air duct, a backflow port is formed in the joint of the first intercepting plate and the air duct, one end of the second intercepting plate is connected with the side, close to the water tank, of the air duct, and an air inlet of the fan communicates with the top of the air duct through the filter box. The device has the characteristics of simple structure, high dust removal efficiency and good safety.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a dust-free polishing machine. Background Art

[0002] Polishing machine, also known as grinding machine, is commonly used for mechanical grinding, polishing and waxing; its working principle is: the motor drives the sponge or wool polishing disk installed on the polishing machine to rotate at high speed. Due to the joint action of the polishing disk and the polishing agent and the friction with the surface to be polished, the paint surface pollution, oxide layer and shallow marks can be removed.

[0003] Traditional polishing machines will generate a lot of flying metal chips and dust when polishing metal or wood products, which will affect the health of workshop workers. Therefore, in order to reduce the impact of dust generated during polishing on the production environment and workers, polishing machines are usually equipped with dust removal devices, which generally use negative pressure to absorb dust or use water spray to form a water curtain to bring dust into the water. Some polishing machines are also equipped with negative pressure suction devices and spray devices for dust removal.

[0004] However, in order to ensure the suction effect, the polishing machine using negative pressure dust removal usually sets the suction port as close to the grinding wheel as possible. Although this can ensure the suction effect, it will also cause the operator's clothes to be pulled, posing a greater safety hazard. The polishing machine using water curtain dust removal needs to use a water pump to pressurize the water and then spray it on the side of the grinding wheel. Since the water used for spraying is usually internally circulated, as the use time increases, the increase in impurities in the water can easily cause the water pump to be damaged due to blockage, resulting in a shorter service life of the spraying device.

[0005] The technical problem to be solved by the utility model is: how to improve the problem of poor dust removal effect of the existing polishing machine. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model aims to provide a dust-free polishing machine which has the characteristics of simple structure, efficient dust removal and good safety.

[0007] The technical solution adopted by the utility model is: a dust-free polishing machine, including a cabinet and a polishing mechanism, a polishing cavity is provided on one side of the cabinet, the polishing mechanism is built in the polishing cavity, and also includes a dust removal mechanism installed on the cabinet;

[0008] The dust removal mechanism includes a water tank arranged on one side of the bottom of the cabinet, an air duct built into the cabinet and a fan arranged on the top of the cabinet, the bottom of the air duct is connected with the bottom of the polishing chamber through a wading chamber, the wading chamber is connected with the water tank, a flow guide is arranged at the bottom of the air duct, an air exhaust port is arranged on the side of the polishing chamber close to the flow guide, a collecting port is arranged on the side of the water tank close to the flow guide, the upper edge of the air exhaust port is higher than the upper edge of the collecting port, at least one first intercepting plate and at least one second intercepting plate are arranged on the inner wall of the air duct, one end of the first intercepting plate is connected to the side of the air duct close to the polishing chamber, and the other side extends obliquely toward the direction away from the wading chamber, a return port is provided at the connection between the first intercepting plate and the air duct, the return port connects the air duct and the polishing chamber, the second intercepting plate is arranged opposite to the first intercepting plate, and one end of the second intercepting plate is connected to the side of the air duct close to the water tank, and the other end extends obliquely toward the direction of the wading chamber, and the air inlet of the fan is connected to the top of the air duct through a filter box.

[0009] The dust-free polishing machine of the present application utilizes the negative pressure generated by the suction of the fan to draw the dust in the polishing chamber and the water in the wading chamber from the suction port into the air duct, and the water vapor collides with the dust and the inner wall of the air duct, the first interception plate and the second interception plate, so that the dust and water droplets are fully fused, and the water droplets are changed from small droplets to large droplets. Under the action of gravity, some of the water droplets fused with the dust fall on the guide member and flow into the water tank through the collection port. Some of the water droplets fall on the first interception plate and flow back into the polishing chamber through the reflux port to form a water curtain, thereby further removing the dust in the polishing chamber. The remaining small-volume water droplets and dust are intercepted by the filter box, so that the dust can be fully removed.

[0010] This dust-free polishing machine uses negative pressure to draw water, does not need a water pump, saves the cost of the water pump, and can also avoid the problem that impurities in the water tank affect the service life of the water pump;

[0011] In addition, the dust-free polishing machine of the present application sets the exhaust port at a position lower than the polishing chamber, which can ensure the suction effect while avoiding the risk of negative pressure pulling the clothes of the polishing workers, thereby improving safety performance.

[0012] In some embodiments, the guide member includes an air flow plate and a water flow plate, one end of the air flow plate is connected to the lower edge of the exhaust port, and the other end is inclined to extend into the air duct in a direction away from the wading chamber, and one end of the water flow plate is connected to the lower edge of the collecting port, and the other end is inclined to extend into the air duct in a direction away from the wading chamber.

[0013] By adopting the above technical solution, the air flow plate can guide the dust and water vapor entering the air duct, so that the airflow hits the inner wall of the air duct at the maximum flow rate, prompting the small droplets in the water vapor to merge into larger water droplets, while wrapping the dust in the water droplets and reducing the flow rate of the air flow so that the dust and water droplets can fully merge; the water flow plate can guide the water droplets mixed with dust to converge into the water tank and discharge the dust into the air duct.

[0014] In some embodiments, the air flow plate and the water flow plate are connected at one end extending into the air duct through a connecting plate, the end of the air flow plate close to the air exhaust port is connected to a first transition plate, and the end of the water flow plate close to the collection port is connected to a second transition plate.

[0015] By adopting the above technical solution, the connecting plate, the first transition plate and the second transition plate can enhance the strength of the water flow plate and the air flow plate.

[0016] In some embodiments, a sealing plate is disposed on one side of the water tank close to the water flow plate, and the sealing plate and the water flow plate form a sealed channel.

[0017] By adopting the above technical solution, the sealing plate and the water flow plate form a sealed channel, so that the height of the collecting port can be lowered. When in use, the collecting port is submerged below the water surface of the water tank, ensuring that the air pressure of the exhaust port is not dispersed and the suction effect is guaranteed.

[0018] In some embodiments, a first bend is provided at one end of the first intercepting plate away from the polishing chamber, and a second bend is provided at one end of the second intercepting plate close to the polishing chamber.

[0019] By adopting the above technical solution, the first bend can improve the strength of the first interception plate, and the second bend can improve the strength of the second interception plate.

[0020] In some embodiments, the first intercepting plate and the second intercepting plate partially overlap in the vertical projection direction.

[0021] By adopting the above technical solution, the path length of the air duct can be extended, so that dust and water vapor can be fully integrated, thereby improving the dust removal effect.

[0022] In some embodiments, a silencer is provided at the air outlet of the fan.

[0023] By adopting the above technical solution, wind noise can be reduced and user experience can be improved.

[0024] In some embodiments, the polishing mechanism includes a machine base disposed in the polishing chamber, an explosion-proof motor installed on the top of the machine base, and a grinding wheel connected to an output shaft of the explosion-proof motor.

[0025] By adopting the above technical solution, the explosion-proof motor can prevent dust explosion caused by dust generated by grinding and polishing.

[0026] In some embodiments, a water baffle and an explosion-proof lamp are provided on one side of the cabinet close to the grinding wheel. The explosion-proof lamp is located above the grinding wheel, and the water baffle is provided between the explosion-proof lamp and the grinding wheel.

[0027] By adopting the above technical solution, the water baffle can prevent water droplets from splashing out of the polishing chamber, ensuring the safety performance of the polishing machine, and the explosion-proof lamp can prevent dust explosion.

[0028] In some embodiments, an observation window for observing the interior of the air duct and an installation window for loading and unloading the filter box are provided on the cabinet, and the installation window is provided with a sealing door.

[0029] By adopting the above technical solution, the observation window can facilitate observation of the situation in the air duct, so that the operator can adjust the fan speed and other parameters according to the actual situation. The installation window can facilitate loading and unloading of the filter box, and the sealing door can ensure the sealing of the air duct when the equipment is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a dust-free polishing machine of a preferred embodiment of the utility model;

[0031] Figure 2 for Figure 1 A schematic structural diagram of the dust-free polishing machine from another perspective shown;

[0032] Figure 3 for Figure 1 The schematic diagram of the cross-sectional structure of the dust-free polishing machine along line AA is shown.

[0033] In the figure: 100, dust-free polishing machine; 10, cabinet; 11, polishing chamber; 12, water baffle; 13, explosion-proof lamp; 14, observation window; 15, installation window; 20, polishing mechanism; 21, machine base; 22, explosion-proof motor; 23, grinding wheel; 30, dust removal mechanism; 31, water tank; 32, air duct; 321, exhaust port; 322, collecting port; 323, return port; 33, fan; 34, wading chamber; 35, guide piece; 351, air flow plate; 352, water flow plate; 353, connecting plate; 354, first transition plate; 355, second transition plate; 36, first intercepting plate; 361, first bend; 37, second intercepting plate; 371, second bend; 38, filter box; 39, sealing plate; 40, muffler. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When the number of an element is referred to as "plurality", it may be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] See also Figures 1 to 3 , which is a dust-free polishing machine 100 of a preferred embodiment of the utility model, comprises a cabinet 10, a polishing mechanism 20 and a dust removal mechanism 30. A polishing chamber 11 is provided on one side of the cabinet 10, the polishing mechanism 20 is built in the polishing chamber 11, and the dust removal mechanism 30 is installed on the cabinet 10. The dust-free polishing machine 100 of the present application has the characteristics of simple structure, efficient dust removal and good safety.

[0038] like Figure 1 and Figure 2 As shown, the polishing mechanism 20 includes a machine base 21 arranged in the polishing chamber 11, an explosion-proof motor 22 installed on the top of the machine base 21, and a grinding wheel 23 connected to the output shaft of the explosion-proof motor 22. The explosion-proof motor 22 can prevent dust explosion caused by dust generated by grinding and polishing. Correspondingly, a water baffle 12 and an explosion-proof lamp 13 are arranged on one side of the cabinet 10 close to the grinding wheel 23. The explosion-proof lamp 13 is located above the grinding wheel 23, and the water baffle 12 is arranged between the explosion-proof lamp 13 and the grinding wheel 23. The water baffle 12 can prevent water droplets from splashing out of the polishing chamber 11, prevent water droplets from hurting the operator's mouth, nose, ears and eyes, and ensure the safety performance of the polishing machine, while the explosion-proof lamp 13 can prevent dust explosion.

[0039] Please also read Figures 1 to 3The dust removal mechanism 30 includes a water tank 31 arranged at one side of the bottom of the cabinet 10, an air duct 32 built into the cabinet 10, and a fan 33 arranged at the top of the cabinet 10. The bottom of the air duct 32 is connected to the bottom of the polishing chamber 11 through a wading chamber 34, and the wading chamber 34 is connected to the water tank 31. A guide member 35 is arranged at the bottom of the air duct 32. A suction port 321 is arranged on one side of the polishing chamber 11 close to the guide member 35. A collection port 322 is arranged on one side of the water tank 31 close to the guide member 35. The upper edge of the suction port 321 is higher than the upper edge of the collection port 322. At least one first interception plate is arranged on the inner wall of the air duct 32. 36 and at least one second intercepting plate 37, one end of the first intercepting plate 36 is connected to the side of the air duct 32 close to the polishing chamber 11, and the other side extends obliquely toward the direction away from the wading chamber 34, a return port 323 is provided at the connection between the first intercepting plate 36 and the air duct 32, the return port 323 connects the air duct 32 and the polishing chamber 11, the second intercepting plate 37 is arranged opposite to the first intercepting plate 36, and one end of the second intercepting plate 37 is connected to the side of the air duct 32 close to the water tank 31, and the other end extends obliquely toward the direction of the wading chamber 34, the air inlet of the fan 33 is connected to the top of the air duct 32 through the filter box 38.

[0040] In this embodiment, the number of the first transition plate 354 and the number of the second transition plate 355 are both one. In other embodiments, more than one first transition plate 354 and second transition plate 355 may be provided in the air duct 32 according to actual needs.

[0041] It should be noted that, in order to ensure the suction effect, during the use of the dust-free polishing machine 100, the collecting port 322 should be immersed below the water surface to prevent air leakage at the collecting port 322, resulting in uneven air pressure and affecting the suction effect.

[0042] Similarly, in order to ensure the suction effect and prevent the airflow from entering the air duct 32 from the return port 323, a water curtain cover (not shown) is provided on the side of the return port 323 close to the grinding wheel 23. The upper edge of the water curtain cover is hinged to the inner wall of the polishing chamber 11. The water curtain cover completely covers the return port 323, and a serrated water flow channel is provided on the lower edge of the water curtain cover. In this way, the water curtain cover can prevent the airflow from entering the air duct 32 from the return port 323, and the water droplets intercepted in the air duct 32 converge on the first interception plate 36 and enter the polishing chamber 11 through the return port 323 to form a water curtain.

[0043] like Figure 3As shown, specifically, the guide member 35 includes an airflow plate 351 and a water flow plate 352. One end of the airflow plate 351 is connected to the lower edge of the air suction port 321, and the other end is inclined to extend into the air duct 32 in a direction away from the wading cavity 34. One end of the water flow plate 352 is connected to the lower edge of the collection port 322, and the other end is inclined to extend into the air duct 32 in a direction away from the wading cavity 34. The airflow plate 351 can guide dust and water vapor to enter the air duct 32, so that the airflow hits the inner wall of the air duct 32 at the maximum flow rate, prompting small droplets in the water vapor to merge into larger water droplets, and at the same time wrap the dust in the water droplets, and reduce the flow rate of the airflow, so that the dust and the water droplets can fully merge; the water flow plate 352 can guide the water droplets mixed with dust to converge into the water tank 31, and discharge the dust into the air duct 32.

[0044] Furthermore, the ends of the airflow plate 351 and the waterflow plate 352 extending into the air duct 32 are connected via a connecting plate 353, the end of the airflow plate 351 close to the air inlet 321 is connected to a first transition plate 354, and the end of the waterflow plate 352 close to the collecting port 322 is connected to a second transition plate 355. The connecting plate 353, the first transition plate 354, and the second transition plate 355 can enhance the strength of the waterflow plate 352 and the airflow plate 351.

[0045] Preferably, a sealing plate 39 is provided on one side of the water tank 31 close to the water flow plate 352, and the sealing plate 39 and the water flow plate 352 form a sealed passage. The sealing plate 39 and the water flow plate 352 form a sealed passage, so that the height of the collection port 322 can be lowered, and the collection port 322 is submerged under the water surface of the water tank 31 when in use, ensuring that the air pressure of the air suction port 321 is not dispersed, thereby ensuring the suction effect.

[0046] Please refer to Figure 3 The first intercepting plate 36 is provided with a first bend 361 at one end away from the polishing chamber 11, and the second intercepting plate 37 is provided with a second bend 371 at one end close to the polishing chamber 11. The first bend 361 can improve the strength of the first intercepting plate 36, and the second bend 371 can improve the strength of the second intercepting plate 37.

[0047] In this embodiment, the first bend 361 and the second bend 371 are both U-shaped bends. The first bend 361 is arranged on the side of the first intercepting plate 36 close to the second intercepting plate 37, and the opening of the first bend 361 faces the polishing chamber 11, so that the edge of the first bend 361 can be prevented from colliding with the airflow, thereby reducing wind noise. The second bend 371 is arranged on the side of the second intercepting plate 37 close to the first intercepting plate 36, and the opening of the second bend 371 faces the water tank 31, so that the water droplets intercepted on the second intercepting plate 37 can be converged inside the second bend 371, thereby preventing the airflow from sucking away the water droplets intercepted by the second intercepting plate 37 again.

[0048] Furthermore, the first interception plate 36 and the second interception plate 37 partially overlap in the vertical projection direction. This arrangement can extend the path length of the air duct 32, so that the dust and water vapor can be fully integrated, thereby improving the dust removal effect.

[0049] Preferably, a silencer 40 is provided at the air outlet of the fan 33 to reduce wind noise and improve user experience.

[0050] In this embodiment, the cabinet 10 is provided with an observation window 14 for observing the inside of the air duct 32 and an installation window 15 for loading and unloading the filter box 38, and the installation window 15 is provided with a sealing door. The observation window 14 can facilitate observation of the situation in the air duct 32, so that the operator can adjust the parameters such as the rotation speed of the fan 33 according to the actual situation, the installation window 15 can facilitate loading and unloading of the filter box 38, and the sealing door can ensure the sealing of the air duct 32 when the equipment is working.

[0051] In one embodiment, a liquid level sensor is provided inside the water tank 31, and the liquid level sensor is connected to the water replenishing device. When the water level in the water tank 31 is lower than a preset height, the water replenishing device is started to replenish water for the water tank 31. When the water level in the water tank 31 reaches a preset height, the water replenishing device is closed to stop replenishing water. A sewage outlet is also provided at the bottom of the water tank 31, and the sewage outlet can discharge dust deposited inside the water tank 31 out of the water tank 31.

[0052] The dust-free polishing machine 100 of the present application utilizes the negative pressure generated by the suction of the fan 33 to draw the dust in the polishing chamber 11 and the water in the wading chamber 34 from the suction port 321 into the air duct 32, and the water vapor collides with the dust and the inner wall of the air duct 32, the first interception plate 36 and the second interception plate 37, so that the dust and the water droplets are fully fused, and the water droplets are changed from small droplets to large droplets. Under the action of gravity, some of the water droplets that have fused with the dust fall on the guide member 35, flow into the water tank 31 through the collection port 322, and some of the water droplets fall on the first interception plate 36 and flow back to the polishing chamber 11 through the reflux port 323 to form water. The curtain further removes the dust in the polishing chamber 11, and the remaining small volume of water droplets and dust are intercepted by the filter box 38, so that the dust can be fully removed; the dust-free polishing machine 100 uses the negative pressure generated by the fan 33 to draw water, and does not need a water pump, which saves the investment cost of the water pump and avoids the problem that impurities in the water tank 31 affect the service life of the water pump; in addition, the dust-free polishing machine 100 of the present application sets the exhaust port 321 at a position lower than the polishing chamber 11, which can ensure the suction effect while avoiding the risk of negative pressure pulling the clothes of the polishing operator, thereby improving the safety performance.

[0053] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust-free polishing machine (100), comprising a cabinet (10) and a polishing mechanism (20), wherein a polishing chamber (11) is provided on one side of the cabinet (10), and the polishing mechanism (20) is built in the polishing chamber (11), characterized in that: It also includes a dust removal mechanism (30) installed on the cabinet (10); The dust removal mechanism (30) comprises a water tank (31) arranged at one side of the bottom of the cabinet (10), an air duct (32) built into the cabinet (10), and a fan (33) arranged at the top of the cabinet (10); the bottom of the air duct (32) is connected to the bottom of the polishing chamber (11) through a wading chamber (34); the wading chamber (34) is connected to the water tank (31); a flow guide (35) is arranged at the bottom of the air duct (32); an air suction port (321) is arranged on the side of the polishing chamber (11) close to the flow guide (35); a collecting port (322) is arranged on the side of the water tank (31) close to the flow guide (35); the upper edge of the air suction port (321) is higher than the upper edge of the collecting port (322); and the inner wall of the air duct (32) is provided with at least one first An interception plate (36) and at least one second interception plate (37), one end of the first interception plate (36) is connected to one side of the air duct (32) close to the polishing chamber (11), and the other side is obliquely extended in a direction away from the wading chamber (34), a return port (323) is provided at the connection between the first interception plate (36) and the air duct (32), and the return port (323) connects the air duct (32) and the polishing chamber (11), the second interception plate (37) is arranged opposite to the first interception plate (36), and one end of the second interception plate (37) is connected to one side of the air duct (32) close to the water tank (31), and the other end is obliquely extended in the direction of the wading chamber (34), and the air inlet of the fan (33) is connected to the top of the air duct (32) through a filter box (38).

2. The dust-free polishing machine (100) according to claim 1, characterized in that: The flow guide (35) comprises an air flow plate (351) and a water flow plate (352); one end of the air flow plate (351) is connected to the lower edge of the air suction port (321), and the other end of the air flow plate (351) is inclined to extend into the air duct (32) in a direction away from the wading cavity (34); one end of the water flow plate (352) is connected to the lower edge of the collection port (322), and the other end of the air flow plate (352) is inclined to extend into the air duct (32) in a direction away from the wading cavity (34).

3. The dust-free polishing machine (100) according to claim 2, characterized in that: The ends of the air flow plate (351) and the water flow plate (352) extending into the air duct (32) are connected via a connecting plate (353); the end of the air flow plate (351) close to the air suction port (321) is connected to a first transition plate (354); and the end of the water flow plate (352) close to the collection port (322) is connected to a second transition plate (355).

4. The dust-free polishing machine (100) according to claim 2, characterized in that: A sealing plate (39) is provided on one side of the water tank (31) close to the water flow plate (352), and the sealing plate (39) and the water flow plate (352) form a sealed channel.

5. The dust-free polishing machine (100) according to claim 1, characterized in that: The first intercepting plate (36) is provided with a first bend (361) at one end away from the polishing chamber (11), and the second intercepting plate (37) is provided with a second bend (371) at one end close to the polishing chamber (11).

6. The dust-free polishing machine (100) according to claim 1, characterized in that: The first interception plate (36) and the second interception plate (37) partially overlap in the vertical projection direction.

7. The dust-free polishing machine (100) according to claim 1, characterized in that: The air outlet of the fan (33) is provided with a silencer (40).

8. The dust-free polishing machine (100) according to claim 1, characterized in that: The polishing mechanism (20) comprises a machine base (21) arranged in the polishing chamber (11), an explosion-proof motor (22) installed on the top of the machine base (21), and a grinding wheel (23) connected to the output shaft of the explosion-proof motor (22).

9. The dust-free polishing machine (100) according to claim 8, characterized in that: A water baffle (12) and an explosion-proof lamp (13) are arranged on one side of the cabinet (10) close to the grinding wheel (23); the explosion-proof lamp (13) is located above the grinding wheel (23); and the water baffle (12) is arranged between the explosion-proof lamp (13) and the grinding wheel (23).

10. The dust-free polishing machine (100) according to claim 1, characterized in that: The cabinet (10) is provided with an observation window (14) for observing the interior of the air duct (32) and an installation window (15) for loading and unloading the filter box (38); the installation window (15) is provided with a sealing door.

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