Spraying device and spraying method for antibacterial layer of ptfe film

Abstract

The invention discloses an antibacterial layer spraying device for a ptfe film. The antibacterial layer spraying device comprises a rack, a conveying roller assembly rotationally connected with the rack and used for conveying the ptfe film and an overturning roller, and the conveying roller assembly and the overturning roller are matched to enable a conveying path of a spraying section of the ptfe film to form a cuboid; the spraying assembly is used for spraying an antibacterial solution into the inner cavity of the cuboid. The antibacterial layer spraying device for the ptfe film is reasonable in structure, the two faces of the ptfe film can be sprayed at the same time, and an antibacterial solution is prevented from being volatilized in air.

Description

Technical Field

[0001] The invention relates to the technical field of PTFE membranes, and in particular to an antibacterial layer spraying device and a spraying method for a PTFE membrane. Background Art

[0002] PTFE membrane is a microporous film made of polytetrafluoroethylene dispersed resin through special processes such as premixing, extrusion, calendering, and biaxial stretching.

[0003] PTFE membrane utilizes the unique node fibrillation, smooth surface, chemical resistance, air permeability and water-tightness, large air permeability, flame retardancy, high temperature resistance, strong acid and alkali resistance, and non-toxicity of polytetrafluoroethylene microporous membrane, and can be used for atmospheric dust removal, air purification, etc.

[0004] The products made of this membrane have high filtration efficiency, which can reach 99.99%, and are close to zero emissions; they have low operating resistance, fast filtration speed, long service life, and can be reused, thereby reducing the cost of use.

[0005] The antibacterial effect of the PTFE membrane can be improved by combining it with an antibacterial layer. In the prior art, the antibacterial layer is usually formed by spraying an antibacterial solution on the surface of the PTFE membrane and then curing it. This operation method, due to the fluidity of the antibacterial solution, easily causes the antibacterial solution to float in the air, resulting in waste of the antibacterial solution.

[0006] Therefore, it is necessary to improve the antibacterial layer spraying device of the PTFE membrane in the prior art. Summary of the invention

[0007] The purpose of the present invention is to overcome the defects in the prior art and provide an antibacterial layer spraying device for a PTFE film, which can spray both sides of the PTFE film at the same time and prevent the antibacterial solution from volatilizing into the air.

[0008] To achieve the above technical effects, the technical solution of the present invention is: a device for spraying an antibacterial layer of a PTFE film, comprising a frame, a transmission roller assembly rotatably connected to the frame and used to transmit the PTFE film, and a flip roller, wherein the transmission roller assembly cooperates with the flip roller to form a rectangular parallelepiped transmission path of the spraying section of the PTFE film; and also comprises a spray assembly for spraying an antibacterial solution into the inner cavity of the rectangular parallelepiped.

[0009] According to one embodiment of the present invention, the transmission roller assembly includes a first transmission roller, a second transmission roller, a third transmission roller, a fourth transmission roller, a fifth transmission roller, a sixth transmission roller, a seventh transmission roller, and an eighth transmission roller which are arranged in sequence along the transmission direction of the PTFE film, the first transmission roller and the second transmission roller are arranged on the first side of the cuboid, the third transmission roller and the fourth transmission roller are arranged on the second side of the cuboid, and the first side is arranged opposite to the second side; the fifth transmission roller and the sixth transmission roller are arranged on the third side of the cuboid, the seventh transmission roller and the eighth transmission roller are arranged on the fourth side of the cuboid, the third side is arranged opposite to the fourth side and is perpendicular to the first side.

[0010] According to one embodiment of the present invention, the flipping roller is arranged between the fourth transmission roller and the fifth transmission roller, and the axis line of the flipping roller and the axis line of the fourth transmission roller and the axis line of the fifth transmission roller are all at an angle of 45 degrees. The flipping roller is used to reverse the transmission path of the PTFE film by 90 degrees.

[0011] According to one embodiment of the present invention, it further includes a avoidance roller assembly for reducing the area of ​​the transmission roller assembly exposed in the rectangular parallelepiped.

[0012] According to one embodiment of the present invention, the avoidance roller assembly includes a first avoidance roller, a second avoidance roller, a third avoidance roller, a fourth avoidance roller and a fifth avoidance roller, the first avoidance roller is arranged on the discharge side of the second transmission roller, and the horizontal plane where the axis line of the first avoidance roller is located is adjacent to the horizontal plane where the axis line of the second transmission roller is located; the second avoidance roller is arranged on the feed side of the third transmission roller, the third avoidance roller is arranged on the feed side of the fifth transmission roller, the fourth avoidance roller is arranged on the feed side of the sixth transmission roller, and the fifth avoidance roller is arranged on the feed side of the seventh transmission roller.

[0013] According to one embodiment of the present invention, it also includes a drying component for curing the sprayed antibacterial solution, the drying component includes a hot air box blowing air toward the PTFE film, and the hot air box is fixedly connected to the frame.

[0014] According to one embodiment of the present invention, the hot air box is disposed between the first conveying roller and the second conveying roller.

[0015] According to one embodiment of the present invention, the spray assembly comprises a spray pipe, and the spray pipe enters the inner cavity of the cuboid from the exposed surface of the flipped surface.

[0016] According to one embodiment of the present invention, it further comprises a cover plate for closing the exposed surface, wherein the cover plate is fixedly connected to the frame and is provided with a through hole for the spray pipe to pass through.

[0017] The present invention also provides a method for spraying an antibacterial layer of a PTFE film, comprising the following steps: S1, the PTFE film is transported through a transport roller assembly and a flip roller, and the path of its spraying section forms a rectangular parallelepiped; S2, a spraying pipe enters the inner cavity of the rectangular parallelepiped from the exposed surface of the flipped surface to perform a spraying operation; S3, a hot air box heats the inner cavity of the rectangular parallelepiped through the PTFE film to solidify the sprayed antibacterial solution.

[0018] The advantages and beneficial effects of the present invention are that the antibacterial layer spraying device of the PTFE film of the present invention has a reasonable structure, and through the cooperation of the transmission roller assembly and the turning roller, the transmission path of the PTFE film is formed into a rectangular parallelepiped, and when the front and back sides are both facing the inner cavity of the rectangular parallelepiped, the antibacterial solution is sprayed into the inner cavity of the rectangular parallelepiped, thereby achieving the purpose of spraying both sides of the PTFE film at the same time and preventing the antibacterial solution from volatilizing into the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of an antibacterial layer spraying device for a PTFE membrane of the present invention; Figure 2 yes Figure 1 Explosion diagram of Figure 3 yes Figure 1 A cross-sectional view of Figure 4 It is the path diagram of PTFE membrane; Figure 5 yes Figure 4 A cross-sectional view of In the figure: 1. frame; 2. turning roller; 3. cuboid; 41. first transmission roller; 42. second transmission roller; 43. third transmission roller; 44. fourth transmission roller; 45. fifth transmission roller; 46. sixth transmission roller; 47. seventh transmission roller; 48. eighth transmission roller; 51. first avoidance roller; 52. second avoidance roller; 53. third avoidance roller; 54. fourth avoidance roller; 55. fifth avoidance roller; 6. hot air box; 7. spray pipe; 8. cover plate; 81. through hole. DETAILED DESCRIPTION

[0020] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention. Example

[0021] like Figure 1-5As shown, the antibacterial layer spraying device of the PTFE film of the embodiment includes a frame 1, a transmission roller assembly rotatably connected to the frame 1 and used to transmit the PTFE film, and a flip roller 2, the transmission roller assembly cooperates with the flip roller 2 to form a rectangular parallelepiped 3 for the transmission path of the spraying section of the PTFE film; and also includes a spraying assembly for spraying an antibacterial solution into the inner cavity of the rectangular parallelepiped 3.

[0022] Through such a design, under the turning action of the turning roller 2, the PTFE film will be transmitted from the inside to the outside. Therefore, the antibacterial solution is sprayed in the transmission path of the rectangular block 3 of the spraying section of the PTFE film, and the antibacterial liquid can be sprayed on both sides of the PTFE film, that is, the purpose of spraying both sides of the PTFE film at the same time is achieved, and the antibacterial solution is prevented from volatilizing into the air, thereby reducing the waste of the antibacterial solution.

[0023] Specifically, the transmission roller assembly includes a first transmission roller 41, a second transmission roller 42, a third transmission roller 43, a fourth transmission roller 44, a fifth transmission roller 45, a sixth transmission roller 46, a seventh transmission roller 47, and an eighth transmission roller 48, which are arranged in sequence along the transmission direction of the PTFE film. The first transmission roller 41 and the second transmission roller 42 are arranged on the first side of the cuboid 3, the third transmission roller 43 and the fourth transmission roller 44 are arranged on the second side of the cuboid 3, and the first side is arranged opposite to the second side; the fifth transmission roller 45 and the sixth transmission roller 46 are arranged on the third side of the cuboid 3, the seventh transmission roller 47 and the eighth transmission roller 48 are arranged on the fourth side of the cuboid 3, and the third side is arranged opposite to the fourth side and perpendicular to the first side.

[0024] Specifically, the flipping roller 2 is arranged between the fourth transmission roller 44 and the fifth transmission roller 45, and the axis line of the flipping roller 2 is at an angle of 45 degrees to the axis line of the fourth transmission roller 44 and the axis line of the fifth transmission roller 45. The flipping roller 2 is used to reverse the transmission path of the PTFE film by 90 degrees.

[0025] Through such a design, the PTFE film passes through the first transmission roller 41, the second transmission roller 42, the third transmission roller 43, the fourth transmission roller 44, the turning roller 2, the fifth transmission roller 45, the sixth transmission roller 46, the seventh transmission roller 47, and the eighth transmission roller 48 in sequence, so that the transmission path of the spraying section of the PTFE film can be formed into a rectangular parallelepiped, and the front side of the PTFE film faces the inner cavity of the rectangular parallelepiped 3 on the first side and the second side, and the back side of the PTFE film faces the inner cavity of the rectangular parallelepiped 3 on the third side and the fourth side.

[0026] Specifically, it also includes a avoidance roller assembly for reducing the area of ​​the transmission roller assembly exposed in the rectangular parallelepiped 3.

[0027] Through such a design, the effect of the antibacterial solution on the transmission roller assembly is reduced, thereby reducing the waste of the antibacterial solution.

[0028] Specifically, the avoidance roller assembly includes a first avoidance roller 51, a second avoidance roller 52, a third avoidance roller 53, a fourth avoidance roller 54 and a fifth avoidance roller 55. The first avoidance roller 51 is arranged on the discharge side of the second transmission roller 42, and the horizontal plane where the axis line of the first avoidance roller 51 is located is adjacent to the horizontal plane where the axis line of the second transmission roller 42 is located; the second avoidance roller 52 is arranged on the feed side of the third transmission roller 43, the third avoidance roller 53 is arranged on the feed side of the fifth transmission roller 45, the fourth avoidance roller 54 is arranged on the feed side of the sixth transmission roller 46, and the fifth avoidance roller 55 is arranged on the feed side of the seventh transmission roller 47.

[0029] With such a design, the PTFE film is detoured by the first avoidance roller 51, the second avoidance roller 52, the third avoidance roller 53, the fourth avoidance roller 54 and the fifth avoidance roller 55, thereby reducing the exposed area of ​​the first avoidance roller 51, the second avoidance roller 52, the third avoidance roller 53, the fourth avoidance roller 54 and the fifth avoidance roller 55, and at the same time, the side edges of the first side, the third side and the fourth side are more closely fitted, and the side edges of the second side, the third side and the fourth side are more closely fitted, thereby reducing the phenomenon of antibacterial solution dispersing into the air.

[0030] Specifically, it also includes a drying component for solidifying the sprayed antibacterial solution, and the drying component includes a hot air box 6 for blowing air toward the PTFE film, and the hot air box 6 is fixedly connected to the frame 1.

[0031] Through such a design, the antibacterial solution sprayed on the surface of the PTFE film is solidified in time, so as to avoid the antibacterial solution being adsorbed and wiped off by the transmission roller assembly or the avoidance roller assembly when the PTFE film is transmitted.

[0032] Specifically, the hot air box 6 is disposed between the first conveying roller 41 and the second conveying roller 42 .

[0033] Through such a design, the antibacterial solution on the PTFE film between the first conveying roller 41 and the second conveying roller 42 is solidified preferentially, thereby reducing the phenomenon of the antibacterial solution remaining on the first avoidance roller 51 .

[0034] Specifically, the spray assembly includes a spray tube 7, and the spray tube 7 enters the inner cavity of the cuboid 3 from the exposed surface of the flipped surface.

[0035] With such a design, the spray tube 7 extends from the triangular exposed surface exposed when the PTFE film is turned over by the turning roller 2 into the inner cavity of the cuboid 3 to spray the inner cavity of the cuboid 3 so that the antibacterial solution is evenly distributed in the inner cavity of the cuboid.

[0036] Specifically, it further comprises a cover plate 8 for closing the exposed surface, the cover plate 8 is fixedly connected to the frame 1 , and the cover plate 8 is provided with a through hole 81 for the spray pipe 7 to pass through.

[0037] Through such a design, the cover plate 8 can prevent the antibacterial solution in the cuboid 3 from being exposed to the air. Compared with the spray box in the prior art, the area of ​​the cover plate 8 is much smaller than the spray box in the prior art. Even if the antibacterial solution is adsorbed on the surface of the cover plate 8, the waste amount is much less than the waste amount in the prior art.

[0038] The present invention also provides a method for spraying an antibacterial layer on both sides of a PTFE film at the same time, comprising the following steps: S1, the PTFE film is transported through a transport roller assembly and a flip roller 2, and the path of its spraying section forms a rectangular parallelepiped 3; S2, a spraying tube 7 enters the inner cavity of the rectangular parallelepiped 3 from the exposed surface of the flipped surface to perform a spraying operation; S3, a hot air box 6 heats the inner cavity of the rectangular parallelepiped 3 through the PTFE film to solidify the sprayed antibacterial solution.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A PTFE film antibacterial layer spraying device, characterized in that: The invention comprises a frame (1), a transmission roller assembly rotatably connected to the frame (1) and used for transmitting a PTFE film, and a flipping roller (2), wherein the transmission roller assembly cooperates with the flipping roller (2) to form a transmission path of a spraying section of the PTFE film into a rectangular parallelepiped (3); and also comprises a spraying assembly used for spraying an antibacterial solution into the inner cavity of the rectangular parallelepiped (3).

2. The antibacterial layer spraying device of PTFE film according to claim 1, characterized in that: The transmission roller assembly comprises a first transmission roller (41), a second transmission roller (42), a third transmission roller (43), a fourth transmission roller (44), a fifth transmission roller (45), a sixth transmission roller (46), a seventh transmission roller (47), and an eighth transmission roller (48) which are sequentially arranged along the transmission direction of the PTFE film, wherein the first transmission roller (41) and the second transmission roller (42) are arranged on the first side of the rectangular parallelepiped (3), the third transmission roller (43) and the fourth transmission roller (44) are arranged on the second side of the rectangular parallelepiped (3), and the first side is arranged opposite to the second side; the fifth transmission roller (45) and the sixth transmission roller (46) are arranged on the third side of the rectangular parallelepiped (3), and the seventh transmission roller (47) and the eighth transmission roller (48) are arranged on the fourth side of the rectangular parallelepiped (3), and the third side is arranged opposite to the fourth side and is perpendicular to the first side.

3. The antibacterial layer spraying device of the PTFE film according to claim 2, characterized in that: The flipping roller (2) is arranged between the fourth transmission roller (44) and the fifth transmission roller (45); the axis of the flipping roller (2) and the axis of the fourth transmission roller (44) and the axis of the fifth transmission roller (45) are all at an angle of 45 degrees; the flipping roller (2) is used to reverse the transmission path of the PTFE film by 90 degrees.

4. The antibacterial layer spraying device of the PTFE film according to claim 3 is characterized in that, It also includes a avoidance roller assembly for reducing the area of ​​the transmission roller assembly exposed in the rectangular parallelepiped (3).

5. The antibacterial layer spraying device of PTFE film according to claim 4 is characterized in that, The avoidance roller assembly comprises a first avoidance roller (51), a second avoidance roller (52), a third avoidance roller (53), a fourth avoidance roller (54) and a fifth avoidance roller (55), wherein the first avoidance roller (51) is arranged on the discharge side of the second transmission roller (42), and the horizontal plane where the axis of the first avoidance roller (51) is located is adjacent to the horizontal plane where the axis of the second transmission roller (42) is located; the second avoidance roller (52) is arranged on the feed side of the third transmission roller (43), the third avoidance roller (53) is arranged on the feed side of the fifth transmission roller (45), the fourth avoidance roller (54) is arranged on the feed side of the sixth transmission roller (46), and the fifth avoidance roller (55) is arranged on the feed side of the seventh transmission roller (47).

6. The antibacterial layer spraying device of PTFE film according to claim 5, characterized in that: It also comprises a drying component for curing the sprayed antibacterial solution, the drying component comprising a hot air box (6) for blowing air towards the PTFE film, the hot air box (6) being fixedly connected to the frame (1).

7. The antibacterial layer spraying device of PTFE film according to claim 6 is characterized in that: The hot air box (6) is arranged between the first transport roller (41) and the second transport roller (42).

8. The antibacterial layer spraying device of PTFE film according to claim 3 is characterized in that: The spraying assembly comprises a spraying tube (7), and the spraying tube (7) enters the inner cavity of the rectangular parallelepiped (3) from the exposed surface of the flipped surface.

9. The antibacterial layer spraying device of PTFE membrane according to claim 8, characterized in that: It also comprises a cover plate (8) for closing the exposed surface, the cover plate (8) being fixedly connected to the frame (1), and the cover plate (8) being provided with a through hole (81) for the spray pipe (7) to pass through.

10. A method for spraying an antibacterial layer of a PTFE film, using the antibacterial layer spraying device of the PTFE film as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, the PTFE film is transported through the transport roller assembly and the flip roller (2), and the path of the spraying section forms a rectangular parallelepiped (3); S2, the spraying tube (7) enters the inner cavity of the rectangular parallelepiped (3) from the exposed surface of the flipped surface to perform a spraying operation; S3, the hot air box (6) heats the inner cavity of the cuboid (3) through the PTFE membrane to solidify the sprayed antibacterial solution.

Images