Aluminum-coated film dust removing apparatus

Abstract

The application relates to an aluminized film dust removing device which comprises a plasma cleaning assembly, a liquid cleaning assembly and a water removing assembly. The plasma cleaning assembly comprises a vacuum chamber, a gas source for feeding gas into the vacuum chamber and a plasma generator for exciting the gas. The vacuum chamber is provided with cleaning holes for passing through the film at two ends respectively. The vacuum chamber is further connected with a vacuum pump for extracting the gas inside. The liquid cleaning assembly comprises a cleaning bin, a plurality of groups of spray heads arranged in the cleaning bin and a water pump for supplying liquid to the spray heads. The spray heads are arranged on the two sides of the film respectively and the water outlets of the spray heads face the film. The gas in the vacuum chamber is converted into plasma by the plasma generator. Then the contaminants attached to the surface of the film are converted into gaseous and water-soluble compounds by the plasma. The surface of the film is washed by liquid so that the water-soluble compounds are dissolved into the liquid. Then the liquid is removed from the surface of the film by the water removing assembly so that the film is cleaned.

Description

Technical Field

[0001] This application relates to the technical field of aluminum coating film processing equipment, and in particular to an aluminum coating film dust removal device. Background Technology

[0002] Metallized film is produced by vacuum metallization, in which high-purity aluminum wire is evaporated into a gaseous state at high temperature. When the plastic film passes through the vacuum evaporation chamber, the gaseous aluminum molecules precipitate onto the surface of the plastic film, forming a bright metallic film.

[0003] During the production process, other substances and dust often adhere to the surface of plastic film. After aluminum molecules are deposited on the film surface, other substances or dust may remain between the aluminum molecules and the plastic film, which will affect the bonding strength between the aluminum molecules and the plastic film, resulting in poor quality of the produced aluminized film.

[0004] Therefore, a new technical solution is needed to address the above problems. Summary of the Invention

[0005] In order to prevent impurities from existing on the surface of the film before aluminum plating, this application provides an aluminum-plated film dust removal device.

[0006] This application provides an aluminum-coated film dust removal device, which adopts the following technical solution:

[0007] A dust removal device for an aluminized membrane includes a plasma cleaning component that decomposes contaminants on the membrane surface into gaseous or water-soluble compounds, a liquid cleaning component that sprays liquid onto the membrane, and a dehydration component that removes liquid from the membrane surface. The plasma cleaning component includes a vacuum chamber, a gas source for introducing gas into the vacuum chamber, and a plasma generator for activating the gas. Cleaning holes for passing through the membrane are respectively provided at both ends of the vacuum chamber. The vacuum chamber is also connected to a vacuum pump for extracting gas from its interior. The liquid cleaning component includes a cleaning chamber, several sets of nozzles disposed in the cleaning chamber, and a water pump for supplying liquid to the nozzles. The nozzles are respectively disposed on both sides of the membrane with the nozzle outlets facing the membrane.

[0008] By adopting the above technical solution, the gas in the vacuum chamber is converted into plasma by a plasma generator. Then, the contaminants attached to the film surface are converted into gaseous and water-soluble compounds by the plasma. The film surface is then washed with liquid to dissolve the water-soluble compounds into the liquid. Finally, the liquid is removed from the film surface by a water removal component to clean the film.

[0009] Optionally, the dewatering assembly includes an air knife disposed in the cleaning chamber and an air pump for driving air to flow into the air knife. The air knife is disposed on both sides of the membrane with its air outlet facing the membrane, and the end of the air knife facing the membrane is inclined away from the conveying direction of the membrane.

[0010] By adopting the above technical solution, the air knife applies a force in one direction to the liquid adhering to the film surface, thereby preventing the liquid adhering to the film surface from moving with the film transport, thus reducing the amount of liquid on the film surface.

[0011] Optionally: The cleaning chamber is further provided with several horizontal guide rollers and several vertical guide rollers. The vertical guide rollers are arranged between the horizontal guide rollers and are set higher than the horizontal guide rollers. The film passes between the two horizontal guide rollers and passes over the vertical guide rollers. The nozzles and air knives are respectively arranged on both sides of the upwardly conveyed film. The air knives are arranged above the film, and both the nozzles and air knives are inclined downwards.

[0012] By adopting the above technical solution, the film is moved upward, and then a liquid flowing downward toward the film is sprayed onto the film. When the liquid is sprayed onto the film and comes into contact with the water-soluble compound, the liquid can flow downward under the action of gravity. Then, an air knife is used to apply a downward force to the liquid, so that less liquid adheres to the film.

[0013] Optionally, it also includes an aspiration assembly for adsorbing liquid remaining on the membrane, the aspiration assembly including an aspiration tank and a negative pressure pump for driving air to flow into the aspiration tank, the aspiration tank having an aspiration port on the side near the membrane, the aspiration port abutting against the membrane surface.

[0014] By adopting the above technical solution, the suction component applies a force toward the suction tank to the liquid attached to the film, thereby reducing the amount of liquid remaining on the film.

[0015] Optionally, the suction port is further provided with a limiting member that is parallel to the film conveying direction and is permeable to air, and the limiting member is attached to the side wall of the film near the suction groove.

[0016] By adopting the above technical solution, when the suction tank sucks up the liquid on the surface of the film, it will apply an upward force to the film. If the film moves upward too much, it will hinder the film's transport. Therefore, the limiting component is used to limit the distance the film moves upward, so that the film's transport is not easily affected.

[0017] Optionally: A sealing strip is provided on the side wall of the suction port near the film. The length direction of the sealing strip is perpendicular to the conveying direction of the film. The sealing strip is respectively provided on both sides of the limiting member and abuts against the surface of the film.

[0018] By adopting the above technical solution, the liquid on the film surface is scraped off using a sealing strip, making it easier to remove the liquid from the film surface.

[0019] Optionally, a hot air assembly is also provided on one side of the output membrane of the cleaning chamber. The hot air assembly includes a hot air chamber and a hot air blower that blows hot air into the hot air chamber, through which the membrane passes.

[0020] By adopting the above technical solution, after the membrane is introduced into the hot air chamber, the residual liquid on the membrane surface is heated by hot air, causing the residual liquid to evaporate and thus removing the liquid from the membrane surface.

[0021] Optionally, it also includes an adhesion assembly for adhering residues on the film. The adhesion assembly is disposed on one side of the film output by the hot air assembly. The adhesion assembly includes a mounting frame, a mounting seat that slides vertically on the mounting frame, a vertical drive for driving the mounting seat to move vertically, an adhesive roller, an unwinding roller, and a winding roller that are rotatably connected to the sliding seat. An electrostatic film is wound on the unwinding roller. The winding roller is connected to the end of the electrostatic film away from the unwinding roller. The adhesive roller is disposed below the unwinding roller and the winding roller and above the electrostatic film. The electrostatic film is adhered to the film surface. The mounting seat is also provided with an adhesion drive for driving the winding roller and the unwinding roller to rotate respectively.

[0022] By adopting the above technical solution, the residual substances on the surface of the film are adhered by the electrostatic film through the adhesion between the electrostatic film and the film, and then the residual substances are removed from the surface of the film during the separation process of the electrostatic film and the film.

[0023] Optionally: A sliding seat is vertically slidable on the mounting frame, the mounting seat is rotatably connected to the lower end of the sliding seat, the vertical drive component is disposed on the mounting frame, the free end of the vertical drive component is connected to the upper end of the sliding seat, and the lower end of the sliding seat is also provided with a rotary drive component that drives the mounting seat to rotate along the vertical axis.

[0024] By adopting the above technical solution, after all the electrostatic film on the unwinding roller is unwound, the mounting base rotates 180 degrees so that the unwinding roller can rewind the electrostatic film, and the rewinding roller unwinds the wound electrostatic film so that the electrostatic film can be reused.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. Use an ion generator to convert gas into plasma. Use plasma to convert contaminants on the film surface into gaseous and water-soluble compounds. Then use liquid to rinse the film surface to dissolve the substances on the film surface in water. Finally, remove the liquid to clean the film surface.

[0027] 2. After the film surface is dried, an electrostatic film is used to adhere any remaining substances to the film surface, so that the residual substances on the film surface are removed by the electrostatic film, making the film surface cleaner. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0029] Figure 2 This is a schematic diagram illustrating the structure of a plasma cleaning assembly according to an embodiment of this application;

[0030] Figure 3 This is a schematic diagram of the structure of the liquid cleaning assembly according to an embodiment of this application;

[0031] Figure 4 This is a schematic diagram illustrating the suction groove structure in an embodiment of this application;

[0032] Figure 5 This is a schematic diagram illustrating the structure of the adhesion component in an embodiment of this application.

[0033] In the diagram, 1. Plasma cleaning assembly; 11. Vacuum chamber; 12. Air source; 13. Plasma generator; 14. Cleaning port; 15. Vacuum pump; 2. Liquid cleaning assembly; 21. Cleaning chamber; 22. Water pump; 23. Nozzle; 24. Horizontal guide roller; 25. Vertical guide roller; 3. Dewatering assembly; 31. Air knife; 32. Air pump; 4. Suction assembly; 41. Suction tank; 411. Suction port; 42. Negative pressure pump; 43. Limiting component; 44. Sealing strip; 5. Hot air assembly; 51. Hot air chamber; 52. Hot air blower; 6. Adhesion assembly; 61. Mounting bracket; 62. Mounting base; 63. Vertical drive component; 64. Adhesive roller; 65. Unwinding roller; 66. Rewinding roller; 67. Electrostatic film; 68. Rotary drive component; 69. Sliding seat. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This application discloses an aluminized film dust removal device, such as... Figure 1 As shown, the system includes a plasma cleaning component 1 that decomposes contaminants on the film surface into gaseous or water-soluble compounds, a liquid cleaning component 2 that sprays liquid onto the film, and a water removal component 3 that removes liquid from the film surface. The plasma cleaning component 1 decomposes contaminants on the film surface into gaseous and water-soluble compounds. The gaseous compounds are directly separated, while the water-soluble compounds are dissolved by the liquid cleaning component 2. The water removal component 3 then removes the liquid, thereby cleaning the film surface.

[0036] like Figure 2As shown, the plasma cleaning assembly 1 includes a hollow vacuum chamber 11, a gas source 12 located outside the vacuum chamber 11 and supplying gas into it, and a plasma generator 13 for exciting the gas. The vacuum chamber 11 is located on the ground, and each of its two mutually distant end faces has a cleaning hole 14 for a thin film to pass through. The plasma generator 13 is located inside the vacuum chamber 11. The gas source 12 is connected to the vacuum chamber 11 to supply gas into the plasma generator 13. The plasma generator 13 then uses heating, ionization, or laser to convert air into plasma, thereby utilizing the free radicals, particles, and electrons in the plasma to react with contaminants on the thin film surface to generate gaseous substances or water-soluble organic matter. The vacuum chamber 11 is also connected to a vacuum pump 15 that draws out the air inside, ensuring that external air does not affect the plasma reaction.

[0037] like Figure 3 As shown, the liquid cleaning assembly 2 includes a cleaning chamber 21 mounted on the ground, several sets of nozzles 23 mounted inside the cleaning chamber 21, and a water pump 22 supplying liquid to the nozzles 23. The film, after being output from the vacuum chamber 11, re-enters the cleaning chamber 21 and then exits from the end of the cleaning chamber 21 furthest from the vacuum chamber 11. The cleaning chamber 21 also includes two horizontal guide rollers 24 and two vertical guide rollers 25 that guide the movement of the film. The horizontal guide rollers 24 are arranged horizontally to drive the film horizontally. The two vertical guide rollers 25 are positioned above the horizontal guide rollers 24, with the horizontal guide rollers 24 located outside the two vertical guide rollers 25. The film passes between the two horizontal guide rollers 24 and also passes above the two vertical guide rollers 25, causing the film to move upwards first, then horizontally downwards, and then continue to be horizontally conveyed. Nozzles 23 are positioned on both sides of the upwardly conveyed membrane, with the spray nozzles of nozzles 23 facing the membrane and tilted downwards. This applies a downward force to the water-soluble compounds on the membrane surface, causing them to move downwards. A water pump 22 is located outside the cleaning chamber 21, with its outlet connected to the nozzles 23 and its inlet connected to a clean water source, enabling the nozzles 23 to continuously spray liquid onto the membrane.

[0038] The water removal assembly 3 includes two sets of air knives 31 disposed within the cleaning chamber 21 and an air pump 32 supplying air to the air knives 31. The two sets of air knives 31 are respectively disposed above the nozzle 23, with the air outlets of the air knives 31 facing the membrane and inclined downwards. The air pump 32 is disposed outside the cleaning chamber 21, and a filter plate is provided at the air inlet of the air pump 32 to filter dust and other substances in the air. The air outlet of the air pump 32 is connected to the air knives 31 and supplies air to the air knives 31. After water spraying, the air knives 31 apply a downward force to the liquid adhering to the membrane, causing the liquid to flow downwards and making it less likely to remain on the membrane, thus reducing the amount of liquid adhering to the membrane.

[0039] like Figure 3 and Figure 4 As shown, since some liquid remains adhering to the surface of the membrane after the liquid is blown downwards by wind, a suction assembly 4 for adsorbing the residual liquid on the membrane is also provided inside the cleaning chamber 21. The suction assembly 4 includes two sets of suction slots 41 and a negative pressure pump 42 for driving air to flow into the suction slots 41. Both sets of suction slots 41 are fixed inside the cleaning chamber 21 with bolts. The two sets of suction slots 41 are respectively located on both sides of the membrane, which is positioned horizontally above. Suction ports 411 communicating with the inner cavity are opened on the side wall of the suction slots 41 near the membrane, and the suction ports 411 abut against the surface of the membrane. The negative pressure pump 42 is located outside the cleaning chamber 21, and the air inlet of the negative pressure pump 42 is connected to the two suction slots 41 respectively.

[0040] A limiting member 43, which can close the suction port 411 and allow air to pass through, is fixed inside the suction port 411 with bolts. In this embodiment, the limiting member 43 is made of wire mesh. When the film is subjected to negative pressure and moves toward the suction groove 41, the limiting member 43 abuts against the surface of the film, thereby limiting the distance the film moves toward the suction groove 41. This prevents the film from moving too far toward the suction groove 41 and also makes the film less prone to damage. In addition, during the contact between the limiting member 43 and the film, a certain amount of friction is applied to the surface of the film, thereby making the surface of the film rougher, which is convenient for subsequent aluminum plating.

[0041] Two sealing strips 44 are also provided on the end face of the suction groove 41 near the film. In this embodiment, the sealing strips 44 are made of hard rubber similar to windshield wipers. The sealing strips 44 are arranged along the conveying direction of the film and are respectively provided on both sides of the limiting member 43. The end of the sealing strip 44 away from the suction groove 41 abuts against the surface of the film. When the film passes through the surface of the sealing strip 44, the negative pressure makes the film adhere to the sealing strip 44 and move. The sealing strip 44 is used to scrape off the liquid on the surface of the film, thereby further reducing the amount of liquid adhering to the surface of the film.

[0042] like Figure 1As shown, a hot air assembly 5 for drying the film surface is also provided on one side of the output film of the cleaning chamber 21. The hot air assembly 5 includes a hot air chamber 51 set on the ground and a hot air blower 52 that introduces hot air into the hot air chamber 51. The film passes through the hot air chamber 51. The hot air blower 52 is set on the ground, and a filter screen is provided at the air inlet of the hot air blower 52. The air outlet of the hot air blower 52 is connected to the hot air chamber 51, thereby introducing high-temperature air into the hot air chamber 51. When the film passes through the hot air chamber 51, the high-temperature air evaporates the liquid on the surface of the film, thereby drying the liquid on the surface of the film.

[0043] like Figure 5 As shown, the hot air chamber 51, on the side for outputting the film, is also equipped with an adhesion assembly 6 for adhering temporary residues to the film surface. The adhesion assembly 6 includes a mounting frame 61 mounted on the ground, a mounting base 62 mounted on the mounting frame 61, a vertical drive member 63 for driving the mounting base 62 to move vertically, an adhesive roller 64 rotatably connected to a sliding base 69, an unwinding roller 65, and a winding roller 66. The sliding base 69 is vertically slidably mounted on the mounting frame 61, and the mounting base 62 is rotatably connected to the lower end of the sliding base 69. The rotation axis of the mounting base 62 is vertically oriented. In this embodiment, the vertical drive member 63 is a hydraulic cylinder. The vertical drive member 63 is fixed to the mounting frame 61 with bolts, and the free end of the vertical drive member 63 is connected to the upper end of the sliding base 69. The lower end of the sliding base 69 is also provided with a rotary drive 68 that drives the mounting base 62 to rotate. In this embodiment, the rotary drive 68 is a motor. The rotary drive 68 is fixed to the lower end of the sliding base 69 with bolts. The free end of the rotary drive 68 drives the mounting base 62 to rotate via a belt. The unwinding roller 65 and the take-up roller 66 are located at the same height and are far apart from each other. An electrostatic film 67 is wound on the unwinding roller 65. The end of the electrostatic film 67 away from the unwinding roller 65 is connected to the take-up roller 66. The take-up roller 66 can rewind the electrostatic film 67 unwound by the unwinding roller 65. The lower end of the mounting base 62 is also provided with an adhesion drive component that drives the take-up roller 66 and the unwind roller 65 to rotate respectively. In this embodiment, the adhesion drive component is a motor. The free end of the adhesion drive component is connected to the take-up roller 66 or the unwind roller 65 via a belt, thereby driving the take-up roller 66 and the unwind roller 65 to rotate respectively. The free end of the adhesion drive component is also provided with a pressure detection element to detect the force that hinders the rotation of the unwind roller 65 and the take-up roller 66 during rotation, thereby controlling the rotation speed of the unwind roller 65 and the take-up roller 66. The adhesive roller 64 is disposed between the unwind roller 65 and the take-up roller 66 and is located below the unwind roller 65 and the take-up roller 66. The electrostatic film 67 passes under the adhesive roller 64 and abuts against the film. The static film 67 is used to adhere and remove temporary residues on the film surface. After the static film 67 on the unwinding roller 65 is unwound, the mounting base 62 rotates 180 degrees so that the unwinding roller 65 can rewind the static film 67, allowing the static film 67 to be reused multiple times.

[0044] The implementation principle of this embodiment is as follows: The thin film enters the vacuum chamber 11, the gas source 12 injects gas into the vacuum chamber 11, and the plasma generator 13 causes the injected gas to form plasma. The plasma transforms the contaminants on the surface of the thin film into gaseous or water-soluble compounds. Then the thin film enters the cleaning chamber 21, and the water-soluble compounds dissolve when the nozzle 23 sprays liquid onto the thin film. Then the air knife 31 applies a downward force to the liquid adhering to the thin film, causing the liquid to flow downward and not easily adhere to the surface of the thin film. The thin film then passes through the suction tank 41, and the sealing strip 44 scrapes off the liquid on the surface of the thin film. Then the suction tank 41 sucks away the residual liquid on the surface of the thin film. The thin film enters the hot air chamber 51, where heated air dries the liquid on the surface of the thin film. The thin film passes under the electrostatic membrane 67, which contacts the thin film and removes the residue on the surface of the thin film. After the electrostatic membrane 67 is completely unwound, the mounting base 62 rises and rotates 180 degrees, and the electrostatic membrane 67 continues to maintain contact with the thin film.

[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An aluminized film dust removal device, characterized in that: The system includes a plasma cleaning assembly (1) for decomposing contaminants on the film surface into gaseous or water-soluble compounds, a liquid cleaning assembly (2) for spraying liquid onto the film, and a dehydration assembly (3) for removing liquid from the film surface. The plasma cleaning assembly (1) includes a vacuum chamber (11), a gas source (12) for introducing gas into the vacuum chamber (11), and a plasma generator (13) for activating the gas. Cleaning holes (14) for passing through the film are respectively provided at both ends of the vacuum chamber (11). The vacuum chamber (11) is also connected to a vacuum pump (15) for extracting the gas inside. The liquid cleaning assembly (2) includes a cleaning chamber (21), several sets of nozzles (23) disposed in the cleaning chamber (21), and a water pump (22) for supplying liquid to the nozzles (23). (23) The nozzles (23) are respectively set on both sides of the film and the outlet of the nozzle (23) faces the film; it also includes an absorption assembly (4) for adsorbing the liquid remaining on the film. The absorption assembly (4) includes an absorption groove (41) and a negative pressure pump (42) for driving air to flow into the absorption groove (41). The absorption groove (41) is provided with an absorption port (411) on the side near the film. The absorption port (411) abuts against the surface of the film. The absorption port (411) is also provided with a limiting member (43) that is parallel to the film conveying direction and can be permeated with air. The limiting member (43) is attached to the side wall of the film near the absorption groove (41). During the contact between the limiting member (43) and the film, a certain friction is applied to the surface of the film, thereby making the surface of the film rough.

2. The aluminized film dust removal device according to claim 1, characterized in that: The dewatering assembly (3) includes an air knife (31) disposed in the cleaning chamber (21) and an air pump (32) for driving air to flow into the air knife. The air knife (31) is disposed on both sides of the membrane and its air outlet faces the membrane. The end of the air knife (31) facing the membrane is inclined away from the conveying direction of the membrane.

3. The aluminized film dust removal equipment according to claim 2, characterized in that: The cleaning chamber (21) is also equipped with several horizontal guide rollers (24) and several vertical guide rollers (25). The vertical guide rollers (25) are arranged between the horizontal guide rollers (24) and are higher than the horizontal guide rollers (24). The film passes between the two horizontal guide rollers (24) and passes over the vertical guide rollers (25). The nozzle (23) and the air knife (31) are respectively arranged on both sides of the upwardly conveyed film. The air knife (31) is arranged above the film, and both the nozzle (23) and the air knife (31) are inclined downward.

4. The aluminized film dust removal equipment according to claim 1, characterized in that: A sealing strip (44) is provided on the side wall of the suction port (411) near the film. The length direction of the sealing strip (44) is perpendicular to the conveying direction of the film. The sealing strip (44) is respectively provided on both sides of the limiting member (43) and abuts against the surface of the film.

5. The aluminized film dust removal equipment according to claim 1, characterized in that: A hot air assembly (5) is also provided on one side of the output membrane of the cleaning chamber (21). The hot air assembly (5) includes a hot air chamber (51) and a hot air blower (52) that blows hot air into the hot air chamber (51). The membrane passes through the hot air chamber (51).

6. The aluminized film dust removal equipment according to claim 5, characterized in that: It also includes an adhesion assembly (6) for adhering residues on the film, the adhesion assembly (6) being disposed on one side of the film output by the hot air assembly (5), the adhesion assembly (6) including a mounting frame (61), a mounting seat (62) vertically sliding on the mounting frame (61), a vertical drive member (63) for driving the mounting seat (62) to move vertically, an adhesive roller (64) rotatably connected to the sliding seat (69), an unwinding roller (65) and a take-up roller (66), the... An electrostatic film (67) is wound on the unwinding roller (65). The take-up roller (66) is connected to the end of the electrostatic film (67) away from the unwinding roller (65). The adhesive roller (64) is located below the unwinding roller (65) and the take-up roller (66) and above the electrostatic film (67). The electrostatic film (67) is adhered to the surface of the film. The mounting base (62) is also provided with an adhesion drive that drives the take-up roller (66) and the unwinding roller (65) to rotate respectively.

7. The aluminized film dust removal equipment according to claim 6, characterized in that: A sliding seat (69) slides vertically on the mounting bracket (61), and the mounting seat (62) is rotatably connected to the lower end of the sliding seat (69). The vertical drive member (63) is disposed on the mounting bracket (61), and the free end of the vertical drive member (63) is connected to the upper end of the sliding seat (69). The lower end of the sliding seat (69) is also provided with a rotary drive member (68) that drives the mounting seat (62) to rotate along the vertical axis.

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