Plasma cleaning machine

Abstract

The utility model provides a plasma cleaning machine which comprises a cleaning machine body, a support is fixed to an inner cavity of the cleaning machine body, two oppositely-arranged rollers are arranged in the support and used for containing particle powder to be cleaned, and a control assembly for controlling the two rollers to rotate so as to improve the cleaning efficiency is arranged on the support. Each roller is correspondingly provided with an electrode assembly, each electrode assembly penetrates into the inner cavity of the cleaning machine body and enters the corresponding roller, the electrode assemblies receive voltage conducted by the plasma generator, gas in the inner cavities of the rollers is excited to be in a plasma state, and the plasma cleaning machine and the electrode assemblies receive the voltage conducted by the plasma generator. Gas in the inner cavities of the rollers is excited to be in a plasma state, vacuum plasma cleaning is conducted on particle powder, the particle powder is driven to turn over through the control assembly, the possibility that plasma cleaning is affected by mutual accumulation of the particle powder is reduced, the plasma cleaning quality is improved, and the particle powder cleaning efficiency is improved by arranging the two rollers.

Description

Technical Field

[0001] The utility model relates to the technical field of plasma cleaning equipment, and particularly relates to a plasma cleaner. Background Art

[0002] The plasma cleaner is also called a plasma cleaning machine or a plasma surface treatment instrument. It is a brand-new high-tech technology that uses plasma to achieve effects that cannot be achieved by conventional cleaning methods.

[0003] At present, the cleaning chamber of the mainstream vacuum plasma cleaning equipment on the market is mainly excited by radio frequency or intermediate frequency. Generally, multiple layers of parallel horizontal electrodes or vertical electrodes are arranged in the vacuum cleaning chamber. The product to be processed is placed between the electrodes, and plasma is generated by discharging between two parallel electrodes to treat the surface of the product. This method is suitable for treating most conventional products on the market, but it is inconvenient to process granular or powdery materials and the treatment effect is uneven.

[0004] A vacuum plasma cleaning cavity disclosed in a Chinese patent with the reference publication number CN217797816U evacuates through a vacuum suction hole, then injects process gas into the cavity shell through a gas pipeline, and generates plasma by discharging between the electrode assembly and the inner wall surface of the drum to clean the materials inside the drum; the drum inside the cavity shell can drive the materials inside the drum to tumble during rotation, making the cleaning effect on the material surface more uniform, especially the cleaning effect on the surface of powdery and granular materials is improved more significantly.

[0005] This application designs another plasma cleaning equipment to solve the problem of low processing efficiency of granular or powdery materials. Summary of the Invention

[0006] To overcome the deficiencies of the prior art, the utility model provides a plasma cleaner, which includes a cleaner body. A bracket is fixed inside the cavity of the cleaner body. Two relatively arranged drums are arranged inside the bracket. The drums are used to hold the particulate powder to be cleaned. A control component for controlling the rotation of the two drums to improve the cleaning efficiency is arranged on the bracket. An electrode assembly is correspondingly arranged for each drum. Each electrode assembly penetrates into the cavity of the cleaner body and enters the drum. The electrode assembly receives the voltage conducted by the plasma generator and excites the gas in the drum cavity into a plasma state.

[0007] To achieve the above object, the particulate powder to be cleaned is placed inside the drum cavity. The electrode assembly receives the voltage conducted by the plasma generator and excites the gas in the drum cavity into a plasma state to perform vacuum plasma cleaning on the particulate powder. The control component drives the particulate powder to tumble, reducing the possibility that the particulate powder accumulates on each other and affects plasma cleaning, improving the quality of plasma cleaning. By arranging two drums, the cleaning efficiency of the particulate powder is improved.

[0008] Furthermore, the control component includes four annular partitions radially arranged on the outer circumferential wall of the drum. The annular partitions are of an integrated structure with the drum. Every two of the annular partitions are close to each other. There are two active ear seats fixed to the bracket between the two drums. Each of the active ear seats is rotatably connected with an active rubber wheel. Each of the active rubber wheels is located between two adjacent annular partitions and abuts against the drum. The two active rubber wheels are coaxially fixed by an active transmission rod. A motor for driving the active rubber wheel to rotate is fixed on one of the active ear seats. There are also two auxiliary support components arranged oppositely on the bracket and located on the side of the drum away from the active transmission rod.

[0009] Through the above technical solution, power is provided by the motor to drive the active rubber wheel coaxial with its output shaft to rotate. The power is transmitted through the active transmission rod to drive the other active rubber wheel to rotate. The active rubber wheel abuts against the drum and cooperates with the auxiliary support component. Due to the frictional force, the two drums are driven to rotate, so as to facilitate the turning of the granular powder in the drum. The rotation of the drum is limited by the annular partition, reducing the possibility of the drum moving around.

[0010] Furthermore, the auxiliary support component includes two driven ear seats located on the side of the drum away from the active transmission rod. The driven ear seats are fixed to the bracket. Each of the driven ear seats is rotatably connected with a driven rubber wheel. Every two adjacent driven rubber wheels are coaxially fixed by a driven transmission rod. The driven rubber wheels are located between two adjacent annular partitions and abut against the outer side wall of the adjacent drum.

[0011] Through the above technical solution, the rotation of the drum will drive the two driven rubber wheels to rotate. The rotation of the four driven rubber wheels assists in supporting the two drums, improving the stability of the drum rotation.

[0012] Furthermore, there is also a limiting component on the bracket to reduce the possibility of the four drums shaking.

[0013] Through the above technical solution, the rotation of the drum is limited by the limiting component, reducing the possibility of the drum shaking and deviating during rotation.

[0014] Furthermore, the limiting component includes two screw rods passing through the bracket and slidably connected with the bracket. One end of two adjacent screw rods passing through the bracket is rotatably connected with a pressing plate. The side of the pressing plate facing the drum is arc-shaped and extends between the two annular partitions. A roller abutting against the drum is rotatably connected to the part of the pressing plate extending between the two annular partitions. The pressing plate and the bracket are fixed by a spring sleeved on the screw rod. The other end of the screw rod passing through the bracket is threadedly sleeved with a nut.

[0015] Through the above technical solution, the movement of the screw rod drives the pressing plate rotatably connected thereto to move. The pressing plate moves until the roller abuts against the circumferential outer wall of the drum. The nut fixedly connects the screw rod and the bracket, and the spring limits the position of the pressing plate. Through the cooperation of the pressing plate, the roller, the driving rubber wheel and the driven rubber wheel, the possibility of shaking during the rotation of the drum is reduced.

[0016] Further, the electrode assembly includes an electrode column, an electrode feeding shaft and a ceramic column. The electrode column is arranged in the inner cavity of the drum and is eccentrically connected to the drum. One end of the ceramic tube and the electrode feeding shaft are both connected to the electrode column. One end of the ceramic column away from the electrode column is fixed on the cleaning machine body. An installation hole for the electrode feeding shaft to extend out is opened on the cleaning machine body. A ceramic tube is nested outside the electrode column.

[0017] Through the above technical solution, the voltage required by the electrode column is conducted through the electrode feeding shaft, and the gas in the inner cavity of the drum is excited into a plasma state.

[0018] Further, a plurality of through holes communicating with the inner cavity of the electrode column are opened on both the electrode column and the ceramic tube, and the process gas is input through the electrode column.

[0019] Through the above technical solution, the process gas enters the electrode column and passes through the through holes to penetrate the electrode column and the ceramic tube. The voltage required by the electrode column conducted by the electrode feeding shaft excites the gas in the inner cavity of the drum into a plasma state.

[0020] Further, the inner cavity of the drum is hollow and open at one end. A sealing cover for closing the open part of the drum is hinged to the drum. A circular hole is opened at the other end. A connecting plate for closing the circular hole is rotatably connected to the drum. A cover plate fixed to the connecting plate is nested outside the connecting plate. The cover plate is rotatably connected to the drum and fixed to the cleaning machine body. The ceramic column penetrates the connecting plate and the cover plate and is fixedly connected to the connecting plate and the cover plate.

[0021] Through the above technical solution, the electrode column is eccentrically arranged with the drum. The electrode column is rotatably connected to the drum through the connecting plate and the cover plate. The rotation of the drum does not affect the electrode column. The eccentric arrangement of the electrode column facilitates feeding.

[0022] In summary, the plasma cleaning machine has the following beneficial effects: The particulate powder to be cleaned is placed in the inner cavity of the drum. The electrode assembly receives the voltage conducted by the plasma generator, excites the gas in the inner cavity of the drum into a plasma state, and performs vacuum plasma cleaning on the particulate powder. The control component drives the particulate powder to turn over, reducing the possibility that the particulate powder accumulates on each other and affects the plasma cleaning, improving the plasma cleaning quality. By setting two drums, the cleaning efficiency of the particulate powder is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following further describes and elaborates the present invention with reference to the drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the preferred embodiment of the present utility model;

[0025] Figure 2 It is a schematic diagram of the overall rear view structure of the present utility model;

[0026] Figure 3 It is a schematic diagram for embodying the structure of the drum of the present utility model;

[0027] Figure 4 It is a schematic diagram for embodying the structure of the electrode post of the present utility model;

[0028] Figure 5 It is a schematic diagram for embodying the structure of the cover plate of the present utility model;

[0029] Figure 6 It is a schematic diagram for embodying the structure of the circular hole of the present utility model.

[0030] Reference numerals: 1, cleaning machine body; 2, bracket; 3, drum; 4, annular partition; 5, active ear seat; 6, active rubber wheel; 7, driven ear seat; 8, driven rubber wheel; 9, driven transmission rod; 10, screw; 11, pressing plate; 12, spring; 13, nut; 14, electrode post; 15, ceramic post; 16, electrode feeding shaft; 17, sealing cover; 18, circular hole; 19, connecting plate; 20, cover plate; 21, vacuum suction hole; 22, motor. Specific embodiments

[0031] Next, the technical solution of the present utility model will be described more clearly and completely by combining with the drawings and through the description of the preferred embodiments of the present utility model.

[0032] As Figure 1-6 shown, a plasma cleaning machine of the preferred embodiment of the present utility model includes a cleaning machine body 1. A bracket 2 adapted to the cleaning machine body 1 is fixed inside the cleaning machine body 1. Two oppositely arranged drums 3 are provided inside the bracket 2. The drums 3 are horizontally arranged and are used to accommodate the particulate powder to be cleaned. A control component for controlling the rotation of the two drums 3 to improve the cleaning efficiency is provided on the bracket 2, and an electrode component is correspondingly provided for each drum 3. Each electrode component penetrates into the inner cavity of the cleaning machine body 1 and enters the drum 3. The electrode component receives the voltage conducted by the plasma generator and excites the gas in the inner cavity of the drum 3 into a plasma state.

[0033] As Figure 1 and Figure 2 and Figure 3 and Figure 4, the particulate powder to be cleaned is placed in the inner cavity of the drum 3. The electrode assembly receives the voltage conducted by the plasma generator, excites the gas in the inner cavity of the drum 3 into a plasma state, and performs vacuum plasma cleaning on the particulate powder. The control assembly drives the particulate powder to turn over, reducing the possibility of the particulate powder accumulating on each other and affecting the plasma cleaning, improving the quality of plasma cleaning. By providing two drums 3, the cleaning efficiency of the particulate powder is improved.

[0034] As Figure 3 and Figure 4 , the control assembly includes four annular partitions 4 radially arranged on the circumferential outer wall of the drum 3. The annular partitions 4 and the drum 3 are of an integral structure. Every two annular partitions 4 are close to each other. There are two active lugs 5 fixed to the bracket 2 between the two drums 3. The two active lugs 5 are arranged oppositely. Each active lug 5 is rotatably connected with an active rubber wheel 6. Each active rubber wheel 6 is located between two adjacent annular partitions 4 and abuts against the drum 3. The width of the active rubber wheel 6 is slightly smaller than the distance between two adjacent annular partitions 4. The rotation of the drum 3 is limited by the annular partition 4, reducing the possibility of the drum 3 moving axially. The two active rubber wheels 6 are coaxially fixed by an active transmission rod. A motor 22 for driving the active rubber wheel 6 to rotate is fixed on one of the active lugs 5. The bracket 2 is also provided with two auxiliary support assemblies which are arranged oppositely and are respectively located on the side of the drum 3 far from the active transmission rod.

[0035] As Figure 2 and Figure 3 and Figure 4 , the motor 22 provides power to drive the active rubber wheel 6 coaxially fixed to its output shaft to rotate. The power is transmitted through the active transmission rod to drive the other active rubber wheel 6 to rotate. The active rubber wheel 6 abuts against the drum 3 and cooperates with the auxiliary support assembly. Due to the frictional force, the two drums 3 are driven to rotate to facilitate the turning over of the particulate powder in the drums 3.

[0036] As Figure 3 and Figure 4 , the auxiliary support assembly includes two driven lugs 7 located on the side of the drum 3 far from the active transmission rod. The driven lugs 7 are fixed to the bracket 2. Each driven lug 7 is rotatably connected with a driven rubber wheel 8. Every two adjacent driven rubber wheels 8 are coaxially fixed by a driven transmission rod 9. The driven rubber wheels 8 are located between two adjacent annular partitions 4 and abut against the outer side wall of the adjacent drum 3. The rotation of the drum 3 will drive the two driven rubber wheels 8 to rotate. The rotation of the four driven rubber wheels 8 assists in supporting the two drums 3, improving the stability of the rotation of the drums 3.

[0037] As Figure 3 and Figure 4 , in order to further reduce the possibility of the drum 3 moving axially, the bracket 2 is also provided with a limiting assembly for reducing the possibility of the four drums 3 shaking.

[0038] like Figure 3 and Figure 4 The limiting assembly includes two screws 10 that pass through the bracket 2 and are slidably connected to the bracket 2. The screws 10 are axially arranged, and one end of two adjacent screws 10 that pass through the bracket 2 is rotatably connected to a pressure plate 11. The pressure plate 11 is arc-shaped toward the side of the roller 3 and extends between the two annular partitions 4. The pressure plate 11 is close to the roller 3 and does not contact the roller 3. The part of the pressure plate 11 extending between the two annular partitions 4 is rotatably connected to a roller that contacts the roller 3. When the roller 3 rotates, it will drive the roller to rotate. The pressure plate 11 and the bracket 2 are fixed by a spring 12 sleeved outside the screw 10, and the other end of the screw 10 that passes through the bracket 2 is provided with a nut 13 through a threaded sleeve.

[0039] like Figure 3 and Figure 4 The movement of the screw 10 will drive the pressure plate 11 connected to it to move. The pressure plate 11 moves until the roller contacts the outer wall of the drum 3. The nut 13 fixes the screw 10 and the bracket 2. The spring 12 limits the position of the pressure plate 11. Through the cooperation of the pressure plate 11, the roller, the active rubber wheel 6 and the driven rubber wheel 8, the possibility of shaking of the drum 3 during rotation is reduced.

[0040] like Figure 4 and Figure 5 and Figure 6 The electrode assembly includes an electrode column 14, an electrode feeding shaft 16 and a ceramic column 15. The electrode column 14 is arranged in the inner cavity of the drum 3 and is eccentrically connected to the drum 3. The ceramic column 15 and the electrode feeding shaft 16 are both connected to one end of the electrode column 14. The end of the ceramic column 15 away from the electrode column 14 is fixed to the cleaning machine body 1. The cleaning machine body 1 is provided with a mounting hole for the electrode feeding shaft 16 to extend out. A ceramic tube is nested outside the electrode column 14. The voltage required by the electrode column 14 is conducted through the electrode feeding shaft 16 to excite the gas in the inner cavity of the drum 3 into a plasma state. The technology for exciting the gas into a plasma state is a prior art, so it will not be described in detail here.

[0041] like Figure 4 and Figure 5 and Figure 6 The inner cavity of the electrode column 14 is hollow, and a connecting hole for a gas pipeline is provided on the cleaning machine body 1. The end of the gas pipeline away from the cleaning machine body 1 is connected to the inner cavity of the electrode column 14, and the inner cavity of the electrode column 14 is hollow. The electrode column 14 and the ceramic tube are provided with a plurality of through holes connected to the inner cavity of the electrode column 14. The process gas enters the inner cavity of the electrode column 14 through the gas pipeline. The technology for the process gas to enter the electrode column 14 is prior art, so it will not be described in detail here.

[0042] like Figure 4 and Figure 5 and Figure 6, the inner cavity of the drum 3 is hollow and open at one end. A sealing cover 17 for closing the open part of the drum 3 is hinged to the drum 3. A circular hole 18 is provided at the other end. A connecting disk 19 for closing the circular hole 18 is rotatably connected to the drum 3. A cover plate 20 fixed to the connecting disk 19 is nested outside the connecting disk 19. The cover plate 20 is rotatably connected to the drum 3 and fixed to the cleaning machine body 1. The ceramic column 15 passes through the connecting disk 19 and the cover plate 20 and is fixedly connected to the connecting plate and the cover plate 20.

[0043] As Figure 4 and Figure 5 and Figure 6 , the electrode column 14 is eccentrically arranged with respect to the drum 3. The electrode column 14 is rotatably connected to the drum 3 through the connecting disk 19 and the cover plate 20. The rotation of the drum 3 does not affect the electrode column 14. The eccentric arrangement of the electrode column 14 facilitates feeding.

[0044] As Figure 4 and Figure 5 and Figure 6 , a vacuum suction hole 21 communicating with the inner cavity of the cleaning machine body 1 is provided on the cleaning machine body 1. The vacuum suction hole 21 is communicated with the suction port of the vacuum pump through a pipeline.

[0045] During use, the power is turned on and the switch is turned on. The staff opens the sealing cover 17, pours the particulate powder to be cleaned into the drum 3 from the open end of the drum 3, and closes the sealing cover 17. The sealing cover 17 closes the drum 3.

[0046] Manually move the screw 10. The movement of the screw 10 will drive the pressing plate 11 rotatably connected thereto to move. The pressing plate 11 moves until the roller abuts against the circumferential outer wall of the drum 3. The nut 13 is sleeved outside the screw 10 and threadedly connected to the screw 10. Rotate the nut 13. The nut 13 moves during rotation until it abuts against the bracket 2. The nut 13 and the screw 10 cooperate to limit the position of the pressing plate 11.

[0047] Turn on the vacuum pump. Powered by the vacuum pump, the inner cavity of the cleaning machine body 1 is evacuated through the vacuum suction hole 21. Then, the gas pipeline is used to inject process gas into the inner cavity of the drum 3, and plasma is generated by discharging between the electrode assembly and the inner wall surface of the drum 3 to clean the particulate powder inside the drum 3. Turn on the motor 22. Powered by the motor 22, the driving rubber wheel 6 coaxially fixed to its output shaft is driven to rotate. The power is transmitted through the driving rod to drive another driving rubber wheel 6 to rotate. The driving rubber wheel 6 abuts against the drum 3. Through the frictional force, the two drums 3 are driven to rotate. The rotation of the two drums 3 will drive the other four driven rubber wheels 8 to rotate. The rotation of the four driven rubber wheels 8 assists in supporting the two drums 3, improving the rotation stability of the drums 3. The drums 3 rotate to facilitate the turning of the particulate powder inside the drums 3, improving the cleaning efficiency of the particulate powder.

[0048] The above specific embodiments only describe the preferred embodiments of the present utility model, rather than limiting the protection scope of the present utility model. Without departing from the design concept and spirit scope of the present utility model, various deformations, substitutions and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model according to the written description and drawings provided by the present utility model shall all fall within the protection scope of the present utility model. The protection scope of the present utility model is determined by the claims.

Claims

1. A plasma cleaning machine, characterized in that: The invention comprises a cleaning machine body (1), wherein a bracket (2) is fixed to the inner cavity of the cleaning machine body (1), wherein two rollers (3) arranged opposite to each other and used for accommodating granular powder to be cleaned are arranged in the bracket (2), wherein a control component for controlling the rotation of the two rollers (3) to improve cleaning efficiency is arranged on the bracket (2), and each roller (3) is correspondingly provided with an electrode component, wherein each electrode component penetrates into the inner cavity of the cleaning machine body (1) and enters into the roller (3), and the electrode component receives a voltage conducted by a plasma generator to excite the gas in the inner cavity of the roller (3) into a plasma state.

2. A plasma cleaning machine according to claim 1, characterized in that: The control assembly comprises four annular baffles (4) radially arranged on the circumferential outer wall of the roller (3); the annular baffles (4) and the roller (3) are an integrated structure; every two of the annular baffles (4) are close to each other; an active ear seat (5) fixed to the bracket (2) is arranged between the two rollers (3); there are two active ear seats (5); each of the active ear seats (5) is rotatably connected to an active rubber wheel (6); each of the active rubber wheels (6) is located between two adjacent annular baffles (4) and contacts the roller (3); the two active rubber wheels (6) are coaxially fixed via an active transmission rod; a motor (22) for driving the active rubber wheel (6) to rotate is fixed to one of the active ear seats (5); and the bracket (2) is further provided with two auxiliary support assemblies arranged opposite to each other and respectively located on the side of the roller (3) away from the active transmission rod.

3. A plasma cleaning machine according to claim 2, characterized in that: The auxiliary support assembly comprises two driven ear seats (7) located on a side of the roller (3) away from the active transmission rod, the driven ear seats (7) being fixed to the bracket (2), each driven ear seat (7) being rotatably connected to a driven rubber wheel (8), and every two adjacent driven rubber wheels (8) being coaxially fixed via a driven transmission rod (9), and the driven rubber wheel (8) being located between two adjacent annular partitions (4) and abutting against the outer side wall of the adjacent roller (3).

4. A plasma cleaning machine according to claim 2, characterized in that: The bracket (2) is also provided with four limit assemblies for reducing the possibility of shaking of the roller (3).

5. A plasma cleaning machine according to claim 4, characterized in that: The limiting assembly comprises two screw rods (10) which pass through the bracket (2) and are slidably connected to the bracket (2); one end of two adjacent screw rods (10) passing through the bracket (2) is rotatably connected to a pressure plate (11); the pressure plate (11) is arc-shaped on the side facing the roller (3) and extends between the two annular partitions (4); the part of the pressure plate (11) extending between the two annular partitions (4) is rotatably connected to a roller that contacts the roller (3); the pressure plate (11) and the bracket (2) are fixed by a spring (12) sleeved outside the screw rod (10); and the other end of the screw rod (10) passing through the bracket (2) is provided with a nut (13) through a threaded sleeve.

6. The plasma cleaning machine according to claim 1, characterized in that: The electrode assembly comprises an electrode column (14), an electrode feed shaft (16) and a ceramic column (15); the electrode column (14) is arranged in the inner cavity of the drum (3) and is eccentrically connected to the drum (3); the ceramic column (15) and the electrode feed shaft (16) are both connected to one end of the electrode column (14); the end of the ceramic column (15) away from the electrode column (14) is fixed to a cleaning machine body (1); a mounting hole for the electrode feed shaft (16) to extend out is provided on the cleaning machine body (1); and a ceramic tube is embedded outside the electrode column (14).

7. The plasma cleaning machine according to claim 6, characterized in that: The electrode column (14) and the ceramic tube are both provided with a plurality of through holes communicating with the inner cavity of the electrode column (14), and process gas is input through the electrode column (14).

8. The plasma cleaning machine according to claim 6, characterized in that: The inner cavity of the drum (3) is hollow and one end is open. A sealing cover (17) is hingedly connected to the drum (3) for closing the opening of the drum (3). A circular hole (18) is opened at the other end. A connecting plate (19) for closing the circular hole (18) is rotatably connected to the drum (3). A cover plate (20) fixed to the connecting plate (19) is embedded outside the connecting plate (19). The cover plate (20) is rotatably connected to the drum (3) and fixed to the cleaning machine body (1). The ceramic column (15) passes through the connecting plate (19) and the cover plate (20) and is fixedly connected to the connecting plate and the cover plate (20).

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