Rear spraying method and device for rare earth antibacterial and antiviral color printing metal plate

Abstract

The invention relates to a rear spraying method and device for a rare earth antibacterial and antiviral color printing metal plate, and provides the following scheme aiming at the problems that when an existing spray head moves to one end of the plate, part of paint is sprayed to the device or the ground, pollution is caused, meanwhile, the paint volatilizes, and indoor pollution is increased. A penetrating transmission roller is rotationally connected between the two sides of the rack, a plurality of conveying belts are in transmission connection between the multiple transmission rollers, a collecting box is arranged between the two sides of the rack, water is arranged in the collecting box, and extending boxes extending upwards are arranged on the two sides of the collecting box; according to the paint spraying device, sprayed paint can fall into the collection box, collection is convenient, pollution to equipment or the ground is reduced, meanwhile, volatilization of harmful substances is reduced, and meanwhile through cooperative use of the water pump and the draught fan, part of harmful gas generated during paint spraying can be dissolved in water more sufficiently.

Description

Technical Field

[0001] The invention relates to the technical field of rare earth antibacterial and antiviral color-printed metal plate processing, and in particular to a post-spraying method and device for rare earth antibacterial and antiviral color-printed metal plates. Background Art

[0002] Rare earth antibacterial and antiviral color printed metal plate is a material that combines rare earth new technology, has antibacterial and antiviral functions, and also has decorative effects. This metal plate achieves antibacterial and antiviral effects through physical functions, is effective for a long time, and is suitable for places that require high hygiene standards such as hospitals, office buildings, and schools.

[0003] When rare earth antibacterial and antiviral color-printed metal plates are produced, the prepared paint needs to be sprayed onto the plates and then dried before they can be used. When existing spraying equipment is used, in order to completely spray the plates, the nozzle usually moves to one end of the plate, and part of the paint will be sprayed onto the device or the ground, causing pollution. At the same time, the paint evaporates, increasing indoor pollution. For this reason, a rare earth antibacterial and antiviral color-printed metal plate post-spraying device is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art that when the nozzle moves to one end of the plate, part of the paint will be sprayed onto the device or the ground, causing pollution, and the paint will evaporate, increasing indoor pollution, and a rare earth antibacterial and antiviral color-printed metal plate post-spraying device is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A rare earth antibacterial and antiviral color-printed metal plate post-spraying device comprises a frame, a through transmission roller is rotatably connected between the two sides of the frame, a plurality of transmission rollers are transmission-connected with a plurality of conveyor belts, a collection box is arranged between the two sides of the frame, water is arranged in the collection box, an extension box extending upward is arranged on both sides of the collection box, a water separation box is fixedly connected to the inner wall of one side of the extension box, and a long strip-shaped liquid outlet is opened at the bottom of the water separation box;

[0007] A water pump is provided on one side of the collection box, the water pumping end of the water pump is fixedly connected to the collection box, a first three-way pipe is fixedly installed on the water outlet end of the water pump, and two water outlet ends of the first three-way pipe are respectively connected to two water distribution boxes;

[0008] A spraying mechanism is arranged on the top of the frame and is used for spraying the metal plate.

[0009] As a further solution of the present invention, the spraying mechanism includes a gantry, which is fixed on the top of the frame, and a threaded rod is rotatably connected between the two sides of the gantry, and a slide is connected to the circumferential thread of the threaded rod, and a spray head is fixedly installed on the bottom of the slide, and a guide rod is fixedly connected between the two sides of the gantry, and the guide rod slides through the slide, and a first motor is fixedly connected to one side of the gantry, and one end of the output shaft of the first motor is fixed to the threaded rod.

[0010] As a further solution of the present invention, a fan is provided on one side of the collecting box, an exhaust pipe is fixedly installed on the exhaust end of the fan, a filter box is fixedly connected to the middle surface of the collecting box, a plurality of activated carbon filters are arranged in the filter box, the exhaust pipe is fixedly connected to the filter box, a second three-way pipe is fixedly connected to the top of the filter box, the other two ends of the second three-way pipe are respectively fixedly connected to two extension boxes, and the connection point between the second three-way pipe and the extension box is located below the water diversion box.

[0011] As a further solution of the present invention, one side of the collection box is rotatably connected with a penetrating rotating frame, and two pairs of fixed boxes are fixedly installed on the circumference of the rotating frame. The two pairs of fixed boxes are respectively located below the two liquid outlets.

[0012] As a further solution of the present invention, a second motor is fixedly connected to one side of the frame, one end of the second motor output shaft is fixed to one of the transmission rollers, the circumference of the second motor output shaft and one end of the rotating frame are fixedly connected with a synchronous wheel, and the two synchronous wheels are connected by a synchronous belt transmission.

[0013] As a further solution of the present invention, a window is provided on one side of the collection box.

[0014] In the present application, when in use, the second motor is started, and the second motor drives multiple transmission rollers and transmission belts to rotate, thereby conveying the plate, and at the same time, paint is supplied to the nozzle through the spraying equipment, and the paint is sprayed onto the plate through the nozzle. During the spraying process, the second motor stops, and the first motor is started, and the threaded rod is driven to rotate by the first motor, thereby driving the slide plate and the nozzle to move, so as to spray the surface of the plate. After one spraying, the second motor is started again to drive the plate to move forward one spraying position and then stop, and then the nozzle is reset to continue spraying the plate. The spraying of the plate is completed in this reciprocating manner. During the spraying process, when the nozzle moves out from above the plate, the sprayed paint can fall into and The collection box is convenient for collection, which reduces pollution to equipment or the ground. The water pump and the fan are started. The water pump transports the water in the collection box to the water distribution box through the first three-way pipe, and then falls through the liquid outlet to form a water curtain. Water is used to absorb some harmful substances in the paint. At the same time, the fan draws air into the filter box through the second three-way pipe and the exhaust pipe, and then is filtered by the activated carbon filter to increase the cleanliness of the indoor air and reduce harm to the staff. When the transmission roller rotates, the rotating frame is also driven to rotate through the synchronous wheel, and the rotating frame drives the fixed box to rotate. The water is stirred through the fixed box, and the bubbles and tumbling effects in the water are increased, and the mixing effect with harmful substances is increased.

[0015] The present invention also provides a rare earth antibacterial and antiviral color-printed metal plate post-spraying method, wherein the post-spraying device is operated according to the following steps:

[0016] (1) Acid degreasing: Use an acidic degreasing agent to clean the metal surface, remove grease and other contaminants, and then rinse the degreased metal surface with clean water to remove the residual degreasing agent;

[0017] (2) Chrome-free stain and ash removal: Use a chrome-free stain and ash removal agent to clean the metal surface and remove impurities and ash;

[0018] (3) Trivalent chromium passivation: immerse the metal in a bath containing a trivalent chromium passivator (such as FL-308) for 2-5 minutes at room temperature, with the pH value controlled between 3.5-4.8 to form a protective film;

[0019] (4) Water washing: Rinse the passivated metal surface with clean water and then dry it;

[0020] (5) A primer layer, a topcoat layer and a rare earth antibacterial and antiviral varnish layer are sequentially coated on one side of the metal plate through a rare earth antibacterial and antiviral color-printed metal plate post-spraying device, and each layer is baked in an oven at a temperature of 200-250° C. for 120s-180s after coating.

[0021] Beneficial effects: In the present invention, the rare earth antibacterial and antiviral color-printed metal plate post-spraying device can install a collection box in the frame, so that the sprayed paint can fall into the collection box, which is convenient for collection, reduces pollution to equipment or the ground, and reduces the volatilization of harmful substances;

[0022] In the present invention, the rare earth antibacterial and antiviral color-printed metal plate post-spraying device, through the coordinated use of a water pump and a fan, enables some of the harmful gases generated during spraying to be more fully dissolved in water and adsorbed by an activated carbon filter, thereby increasing the cleanliness of indoor air and reducing harm to workers;

[0023] In the present invention, by installing a rotating frame and a fixed box in the collection box, the rotating frame drives the fixed box to rotate, and the water is stirred through the fixed box, while the bubbles and tumbling effects in the water are increased, thereby increasing the mixing effect of water and harmful substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of the rare earth antibacterial and antiviral color-printed metal plate post-spraying device proposed by the present invention;

[0025] Figure 2 It is a cross-sectional structural schematic diagram of the rare earth antibacterial and antiviral color-printed metal plate post-spraying device proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of the collection box of the rare earth antibacterial and antiviral color-printed metal plate post-spraying device proposed by the present invention.

[0027] In the figure: 1. frame; 2. transmission roller; 3. conveyor belt; 4. fixed box; 5. gantry; 6. first motor; 7. threaded rod; 8. guide rod; 9. slide plate; 10. nozzle; 11. collection box; 12. rotating frame; 13. second motor; 14. synchronous wheel; 15. extension box; 16. water distribution box; 17. liquid outlet; 18. water pump; 19. first three-way pipe; 20. fan; 21. second three-way pipe; 22. filter box; 23. activated carbon filter; 24. exhaust pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1, reference Figure 1-Figure 3The spraying device comprises: a frame 1, a driving roller 2 is rotatably connected between the two sides of the frame 1, and a plurality of conveyor belts 3 are connected between the plurality of driving rollers 2, and the conveyor belt 3 is used to support the plate. When the driving roller 2 rotates, the plate can be conveyed by the conveyor belt 3. A collecting box 11 is arranged between the two sides of the frame 1, and water is arranged in the collecting box 11. The water can mainly absorb some harmful substances in the paint, such as formaldehyde, to reduce the harm to the staff. Both sides of the collecting box 11 are provided with an extension box 15 extending upward. When the nozzle 10 moves out from above the plate, the sprayed paint can fall into the collecting box 11, which is convenient for collecting the fallen paint, reducing the pollution to the equipment or the ground, and reducing the volatilization of the paint. A water separation box 16 is fixedly connected to the inner wall of one side of the extension box 15, and a long strip-shaped liquid outlet 17 is provided at the bottom of the water separation box 16.

[0030] A water pump 18 is provided on one side of the collection box 11. The water pumping end of the water pump 18 is fixedly connected to the collection box 11. A first three-way pipe 19 is fixedly installed on the water outlet end of the water pump 18. The two water outlet ends of the first three-way pipe 19 are respectively connected to the two water separation boxes 16. The water pump 18 transports the water in the collection box 11 to the water separation box 16 through the first three-way pipe 19, and then falls through the liquid outlet 17, thereby forming a water curtain to increase the water adsorption effect.

[0031] A spraying mechanism is arranged on the top of the frame 1 for spraying the metal plate.

[0032] The present application can be used in the field of rare earth antibacterial and antiviral color-printed metal plate processing, and can also be used in other fields applicable to the present application.

[0033] Example 2, reference Figure 1-Figure 3 , on the basis of Example 1, the rare earth antibacterial and antiviral color-printed metal plate post-spraying device is improved, which is applied to the rare earth antibacterial and antiviral color-printed metal plate processing field, the spraying mechanism includes a gantry 5, the gantry 5 is fixed on the top of the frame 1, the two sides of the gantry 5 are rotatably connected with a threaded rod 7, the circumferential thread of the threaded rod 7 is connected with a slide plate 9, the bottom of the slide plate 9 is fixedly installed with a spray head 10 for spraying, the spray head 10 is supplied with paint through the spraying equipment, and the paint is sprayed onto the plate through the spray head 10, and the two sides of the gantry 5 are fixed A guide rod 8 is connected, and the guide rod 8 slides through the slide plate 9. A first motor 6 is fixedly connected to one side of the gantry 5. One end of the output shaft of the first motor 6 is fixed to the threaded rod 7. When the first motor 6 is started, the threaded rod 7 is driven to rotate by the first motor 6, and then the slide plate 9 and the nozzle 10 are driven to move, so as to spray the surface of the plate. After one spraying, the second motor 13 is started again to drive the plate to move forward one spraying position and then stop. Then the nozzle 10 is reset and the plate continues to be sprayed. The spraying of the plate is completed in this reciprocating manner.

[0034] In the present invention, a fan 20 is provided on one side of the collection box 11, and an exhaust pipe 24 is fixedly installed on the exhaust end of the fan 20. A filter box 22 is fixedly connected to the middle surface of the collection box 11. A plurality of activated carbon filters 23 are arranged in the filter box 22. The activated carbon filter 23 has a good adsorption effect and can adsorb harmful substances in the paint. The exhaust pipe 24 is fixedly connected to the filter box 22, and a second three-way pipe 21 is fixedly connected to the top of the filter box 22. The other two ends of the second three-way pipe 21 are respectively fixedly connected to the two extension boxes 15. The connection point between the second three-way pipe 21 and the extension box 15 is located below the water diversion box 16. The fan 20 draws air into the filter box 22 through the second three-way pipe 21 and the exhaust pipe 24, and then the air is filtered by the activated carbon filter 23, thereby increasing the cleanliness of the indoor air and reducing the harm to the staff.

[0035] In particular, one side of the collecting box 11 is rotatably connected with a rotating frame 12 that penetrates therethrough, and two pairs of fixed boxes 4 are fixedly installed on the circumference of the rotating frame 12, and the two pairs of fixed boxes 4 are respectively located below the two liquid outlets 17, and one side of the frame 1 is fixedly connected with a second motor 13, and one end of the output shaft of the second motor 13 is fixed to one of the transmission rollers 2, and the circumference of the output shaft of the second motor 13 and one end of the rotating frame 12 are fixedly connected with a synchronous wheel 14, and the two synchronous wheels 14 are connected by a synchronous belt transmission, and the rotating frame 12 is driven to rotate by the synchronous wheel 14, and the rotating frame 12 drives the fixed box 4 to rotate, and the water is stirred by the fixed box 4, while the bubbles and tumbling effect in the water are increased, and the mixing effect with harmful substances is increased.

[0036] It should be noted that a window is provided on one side of the collecting box 11 to facilitate people to observe the liquid level in the collecting box 11, and a discharge pipe is provided at the bottom of the collecting box 11 to facilitate the discharge of sewage into the water treatment equipment.

[0037] However, as is well known to those skilled in the art, the working principles and wiring methods of the nozzle 10, the first motor 6 and the second motor 13 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0038] The present invention also provides a rare earth antibacterial and antiviral color-printed metal plate post-spraying method, wherein the post-spraying device is operated according to the following steps:

[0039] (1) Acid degreasing: Use an acidic degreasing agent to clean the metal surface, remove grease and other contaminants, and then rinse the degreased metal surface with clean water to remove the residual degreasing agent;

[0040] (2) Chrome-free stain and ash removal: Use a chrome-free stain and ash removal agent to clean the metal surface and remove impurities and ash;

[0041] (3) Trivalent chromium passivation: immerse the metal in a bath containing a trivalent chromium passivator (such as FL-308) for 2-5 minutes at room temperature, with the pH value controlled between 3.5-4.8 to form a protective film;

[0042] (4) Water washing: Rinse the passivated metal surface with clean water and then dry it;

[0043] (5) A primer layer, a topcoat layer and a rare earth antibacterial and antiviral varnish layer are sequentially coated on one side of the metal plate through a rare earth antibacterial and antiviral color-printed metal plate post-spraying device, and each layer is baked in an oven at a temperature of 200-250° C. for 120s-180s after coating.

[0044] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rare earth antibacterial and antiviral color-printed metal plate post-spraying device, comprising a frame (1), a through transmission roller (2) rotatably connected between two sides of the frame (1), and a plurality of conveyor belts (3) are transmission-connected between the plurality of transmission rollers (2), characterized in that: A collection box (11) is provided between the two sides of the frame (1), water is provided in the collection box (11), extension boxes (15) extending upward are provided on both sides of the collection box (11), a water separation box (16) is fixedly connected to the inner wall of one side of the extension box (15), and a long strip-shaped liquid outlet (17) is provided at the bottom of the water separation box (16); A water pump (18) is provided on one side of the collection box (11); a water pumping end of the water pump (18) is fixedly connected to the collection box (11); a first three-way pipe (19) is fixedly installed on the water outlet end of the water pump (18); and two water outlet ends of the first three-way pipe (19) are respectively connected to two water distribution boxes (16); A spraying mechanism is arranged on the top of the frame (1) and is used for spraying the metal plate.

2. The rare earth antibacterial and antiviral color-printed metal plate post-spraying device according to claim 1 is characterized in that: The spraying mechanism comprises a gantry (5), the gantry (5) is fixed on the top of the frame (1), a threaded rod (7) is rotatably connected between the two sides of the gantry (5), a slide plate (9) is circumferentially threadedly connected to the threaded rod (7), a spray head (10) for spraying is fixedly installed at the bottom of the slide plate (9), a guide rod (8) is fixedly connected between the two sides of the gantry (5), the guide rod (8) slides through the slide plate (9), a first motor (6) is fixedly connected to one side of the gantry (5), and one end of the output shaft of the first motor (6) is fixed to the threaded rod (7).

3. The rare earth antibacterial and antiviral color-printed metal plate post-spraying device according to claim 2 is characterized in that: A fan (20) is provided on one side of the collection box (11), an exhaust pipe (24) is fixedly installed at the exhaust end of the fan (20), a filter box (22) is fixedly connected to the middle surface of the collection box (11), a plurality of activated carbon filters (23) are provided in the filter box (22), the exhaust pipe (24) is fixedly connected to the filter box (22), a second three-way pipe (21) is fixedly connected to the top of the filter box (22), the other two ends of the second three-way pipe (21) are respectively fixedly connected to two extension boxes (15), and the connection point between the second three-way pipe (21) and the extension box (15) is located below the water diversion box (16).

4. The rare earth antibacterial and antiviral color-printed metal plate post-spraying device according to claim 1 is characterized in that: One side of the collection box (11) is rotatably connected to a rotating frame (12) that penetrates through it, and two pairs of fixed boxes (4) are fixedly installed on the circumference of the rotating frame (12), and the two pairs of fixed boxes (4) are respectively located below the two liquid outlets (17).

5. The rare earth antibacterial and antiviral color-printed metal plate post-spraying device according to claim 4 is characterized in that: A second motor (13) is fixedly connected to one side of the frame (1); one end of the output shaft of the second motor (13) is fixed to one of the transmission rollers (2); the circumference of the output shaft of the second motor (13) and one end of the rotating frame (12) are both fixedly connected to a synchronous wheel (14); the two synchronous wheels (14) are connected via a synchronous belt transmission.

6. The rare earth antibacterial and antiviral color-printed metal plate post-spraying device according to claim 1 is characterized in that: A viewing window is provided on one side of the collection box (11).

7. A method for post-spraying a rare earth antibacterial and antiviral color-printed metal plate, using the rare earth antibacterial and antiviral color-printed metal plate post-spraying device according to any one of claims 1 to 6, and performing the following steps: (1) Acid degreasing: Use an acidic degreasing agent to clean the metal surface, remove grease and other contaminants, and then rinse the degreased metal surface with clean water to remove the residual degreasing agent; (2) Chrome-free stain and ash removal: Use a chrome-free stain and ash removal agent to clean the metal surface and remove impurities and ash; (3) Trivalent chromium passivation: immerse the metal in a bath containing a trivalent chromium passivator (such as FL-308) for 2-5 minutes at room temperature, with the pH value controlled between 3.5-4.8 to form a protective film; (4) Water washing: Rinse the passivated metal surface with clean water and then dry it; (5) A primer layer, a topcoat layer and a rare earth antibacterial and antiviral varnish layer are sequentially coated on one side of the metal plate through a rare earth antibacterial and antiviral color-printed metal plate post-spraying device, and each layer is baked in an oven at a temperature of 200-250° C. for 120s-180s after coating.

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