CN112046163A

CN112046163A - Three-dimensional curved surface coating transfer printing method

Info

Publication number: CN112046163A
Application number: CN202010956452.2A
Authority: CN
Inventors: 李俊; 郭颖
Original assignee: Mingde New Material Technology Zhejiang Co ltd
Current assignee: Mingde New Material Technology Zhejiang Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2020-12-08
Anticipated expiration: 2040-09-11
Also published as: CN112046163B

Abstract

The invention discloses a three-dimensional curved surface coating transfer printing method, which comprises the following steps: (1) transfer film: pre-printing a desired pattern on a water-soluble film, which is provided by a coating film supplier; (2) releasing the film: cutting the coating film into the required specification of a workpiece, placing the workpiece on the water surface, and exhausting air between water and the film to ensure that the workpiece is completely attached to the water surface; (3) and (3) activation: spraying an activating agent on the film through an activating device to activate the pattern on the film into an ink state; (4) transfer printing: transferring the pattern activated into the ink state onto a workpiece to be printed by using water pressure; (5) washing with water: washing the residual film after the transfer printing with a washing line; (6) drying (7) and spraying finish paint; the invention adopts a mobile spraying mode; guaranteed atomizer remain throughout and the distance between the coating mould, just can be all scribble the film to the activator through once-through motion on, avoided the inhomogeneous problem of spraying, but also can improve work efficiency.

Description

Three-dimensional curved surface coating transfer printing method

Technical Field

The invention belongs to the technical field of coating transfer printing, and particularly relates to a three-dimensional curved surface coating transfer printing method.

Background

In the process of activating the coating film, a spray gun spraying method is often adopted, and sometimes, when an operator improperly uses a spray gun, the pressure of the sprayed activator is too high, so that the coating mold is damaged. In addition, the spray gun needs to spray back and forth due to different distances in the spraying process, so that the problem of uneven spraying of the activating agent can be caused.

Disclosure of Invention

The invention provides a three-dimensional curved surface coating transfer printing method which is used for overcoming the defects of the prior art and has the advantages of uniform spraying and reduction of repeated times during spraying.

In order to achieve the purpose, the invention adopts the following technical scheme: a three-dimensional curved surface coating transfer printing method comprises the following steps: a three-dimensional curved surface coating transfer printing method comprises the following steps: (1) transfer film: pre-printing a desired pattern on a water-soluble film, which is provided by a coating film supplier; (2) releasing the film: cutting the coating film into the required specification of a workpiece, placing the workpiece on the water surface, and exhausting air between water and the film to ensure that the workpiece is completely attached to the water surface; (3) and (3) activation: spraying an activating agent on the film through an activating device to activate the pattern on the film into an ink state; (4) transfer printing: transferring the pattern activated into the ink state onto a workpiece to be printed by using water pressure; (5) washing with water: washing the residual film after the transfer printing with a washing line; (6) drying: drying (7) the printed workpiece by using an oven and spraying finish paint; spraying a transparent protective layer (gloss oil) on the dried workpiece to protect the surface, and drying again;

the activation equipment comprises a frame, a water tank arranged on the frame, a first water storage cavity arranged on the frame, a scraper plate slidably arranged on the frame, cleaning parts symmetrically arranged on the water tank, a water feeding part arranged on the first water storage cavity, air feeding parts symmetrically arranged on the frame and an activation rod slidably arranged on the frame; the activation rod further comprises atomizing nozzles uniformly distributed along the length direction of the activation rod, a first cavity arranged on the activation rod, a control rod which is arranged on the first cavity in a vertically-displaceable manner and is used for controlling the atomizing nozzles to output liquid, control blocks symmetrically arranged at two ends of the control rod, a liquid cavity arranged on the activation rod and used for storing an activating agent, an activation pipe used for conveying the activating agent to the first cavity, and limiting assemblies symmetrically arranged at two ends of the liquid cavity; air is conveyed to the liquid cavity through the air supply part to generate air pressure, the activating pipe conveys the activating agent to the first cavity under the action of the air pressure, the activating rod is held, the activating agent can move upwards according to the control rod, the activating agent can come out of the atomizing nozzle, the activating rod is moved again, the activating agent can be uniformly sprayed on the covering die, and the pattern on the film is activated into an ink state. The method of spraying by moving the activation rod can not only keep the distance between the atomizing nozzle and the coating mould all the time and prevent the coating mould from being damaged due to different spraying pressures caused by being too close or too original, but also can completely coat the activating agent on the film by one-time movement, thereby avoiding uneven spraying and improving the working efficiency, the liquid output of the activating agent can be controlled by a method of moving the control block up and down, and one end of the control block is a little longer than the activation rod, on one hand, the activating block can be pressed in easily at the beginning, on the other hand, when the spraying amount needs to be increased and then pressed again, the position of one end of the control block is flush with the position of the activation rod, so that the spraying amount cannot be changed too much without special control, the method can not only ensure that the activating agent can come out, but also can keep the spraying amount in a stable state, the problem of uneven spraying caused by different people with different strength is prevented, and the effect of spraying the activating agent can be finally ensured under the condition of saving the using amount.

The cleaning component comprises a push plate rotatably arranged on the frame, a balancing weight detachably arranged on the push plate, convex blocks symmetrically arranged on the push plate, a first empty groove arranged on the frame, a sliding block which can move up and down and arranged on the first empty groove, first grooves symmetrically arranged on the sliding block, leakage-proof blocks for preventing water leakage, a first spring for resetting the sliding block, a drainage channel arranged on the frame and a cleaning plate detachably arranged on the drainage channel; the lug is propped against the inner wall of the first groove; the waste ink waste material that still can have after the rendition is in aqueous, need to clean up other and just can put into the coating mould again, the method of clearance is for removing the scraper blade, at the in-process that removes, waste ink all gathers scraper blade one side, move toward one side that has waste ink after that, the push pedal can be pushed against to the scraper blade, move after that and can let its one end emerge when the push pedal rotates, waste ink is located between frame and the push pedal this moment, promote the scraper blade after that, the push pedal rotates, let lug one end get into first recess inner wall, thereby push against the slider and move down, drainage channel and basin intercommunication this moment, the scraper blade promotes after that, let the push pedal rotate to vertical position, waste ink on water can get into drainage channel under the promotion of push pedal this moment, can separate water and waste ink under the effect of clearance board, part of water can enter into first water storage cavity through the clearance board. The push plate can push the ink in the water for the second time, one end of the push plate can also scrape the ink adsorbed on the scraping plate under the action of the pushing of the scraping plate, and the waste ink on the surface of the water tank can be quickly and effectively cleaned by a scraping method, so that the waste ink can quickly enter the next step; the detachable balancing weight is arranged at one end of the push plate, so that the gravity center of the push plate can not always keep the same straight line with the central line when the push plate is vertical to 90 degrees, and the push plate can reset under the action of gravity when the scraper is far away from the push plate, so that one end of the push plate is located below the water surface again to prepare for next cleaning; and when the push pedal resets, the lug comes out from first recess, the slider can reset under the effect of first spring, method through the linkage, can be so when do not need clearance useless ink, drainage channel and basin are not in the connected state, just prevent not meeting accident when not operating according to the flow, and stability has been improved, the high quality state of draping mould when the activation has been guaranteed, the cleaning plate is installed on the support for detachable mode, through the mode of slope, the moisture refluence that prevents the cleaning plate and separate comes out from cleaning plate one end seepage, water conservation volume, the life of equipment and the number of times of hydrologic cycle have been increased.

The water supply part comprises a second cavity, a gas supply plate which is arranged on the second cavity in a manner of moving up and down, a second spring for pushing the gas supply plate, a linkage component arranged on the gas supply plate, a water supply plate arranged on the gas supply plate, a second water storage cavity arranged between the water supply plate and the frame, and a water supply component for communicating the water tank with the first water storage cavity; let air feed board and water feed board simultaneous movement through the linkage subassembly, at this moment when water feed board down-motion, the water in the second water storage chamber can enter into the basin, when water feed board up-motion, the water in the first water storage chamber can enter into the second water storage chamber. Step on the mode of sending water through the foot, the complicacy of operation has alleviateed promptly, and can also let the people pay close attention to the surface of water in establishing the basin all the time, can conveniently control the rising speed of water level, anytime and anywhere adds water in the basin, can guarantee work all let the water level in the basin keep in a stable position for a long time, and through the mode of up supplementary moisture from following, can be quick let the water in the basin stabilize, prevent the production of water wave, and stable rising water level, can observe very obviously, rather than pour water into the basin, must wait until water flow can know the height of water level after stabilizing, both accurately controlled the height of water level, again can be fast and stable, and the work efficiency is improved.

The linkage assembly comprises a second empty groove arranged on the air feeding plate, a third empty groove arranged on the water feeding plate, a linkage block slidably arranged in the second empty groove, and a third spring for resetting the linkage block; one end of the linkage block can enter a third empty groove; the water passing assembly comprises a first water passing port, a first limiting block arranged on the inner wall of the first water passing port, a limiting plate rotatably arranged on the first water passing port, a first through groove arranged on the first limiting block, a second water passing port and a second limiting block arranged on the second water passing port; when water on the water tank needs to be supplemented, the linkage block is stepped by feet, one end of the linkage block enters the third empty groove, so that the air delivery block and the water delivery block are in a synchronous state, when the water delivery block moves downwards, water in the second water storage cavity can prop against the first limiting block and also prop against the second limiting block to move upwards, when the second limiting block moves upwards, water can flow into the water tank from a gap generated between the second limiting block and the second water through opening, wherein the second limiting block is in a circular truncated cone shape, the second water through opening is also in a circular truncated cone shape, so that a gap can be generated between the second limiting block and the second water through opening when the water is pushed, when the water is not pushed, the second limiting block can seal the gap under the dead weight, and an outlet at the upper end of the second water through opening is smaller than the diameter of the second limiting block, so that the situation that the second limiting block is pushed out of the second water through opening due to excessive force can be prevented, and the water in the water tank can be prevented from rapidly boiling due, when the water conveying block moves upwards, water in the first water storage cavity pushes the limiting plate to flow into the second water storage cavity under the action of suction force, the first through groove can increase the flow speed, and the mode can prevent the water from flowing too slowly to influence the working efficiency; the second stopper is closer to the inner wall of the second water through opening under the suction of the second water storage cavity and the self weight of water in the water tank, so that water backflow is prevented, and the stability of the equipment in working is improved.

The air supply part comprises a third cavity which is arranged on the frame and can allow the activation rod to move, an air vent communicated with the second cavity, an air vent hose which is arranged on the third cavity and two ends of which are respectively communicated with the air vent and the liquid cavity, a first one-way valve which is arranged on the air vent hose and is close to one side of the liquid cavity, and a second one-way valve which allows air to enter the second cavity; when the liquid cavity needs to be inflated, the air feeding plate is horizontally stepped, the linkage block is reset under the action of the spring at the moment, the air feeding plate is separated from the water feeding plate, the bottom of the air feeding plate is completely attached to the second cavity, and when the air feeding plate moves downwards, air in the second cavity enters the liquid cavity through the air hose, so that air pressure is generated inside the liquid cavity; the method that the hoses are symmetrically arranged can realize that the liquid cavity is inflated in a short distance, and because the hoses are soft, the quality of ventilation is not influenced along with the movement of the activation rod; the mode that position and angle are different through the foot is stepped on can produce two kinds of modes, and the first kind is the state of ventilating, and the second kind is simultaneously ventilate and lead to the water state, and both the flexible operation can vacate the hand again and operate other work, and labour saving and time saving can improve the efficiency of equipment work.

The limiting assembly comprises a second through groove arranged on the frame, a second limiting block arranged on the second through groove in a left-right moving mode, a pull rope arranged on the second through groove and two ends of the pull rope are respectively connected with the convex block and the second limiting block, and a fourth spring used for pushing the second limiting block to enter the air vent; one end of the second limiting block can enter the air vent; when the push plates on the two sides are in the initial position, the second limit block the vent hole, so that gas can not enter the liquid cavity, because when the push plates are in the initial position, the scraper is not in the two sides but in the middle, on one hand, the activating rod can spray the activating agent onto the scraper during spraying, and on the other hand, the scraper can inevitably influence the coating die in the middle to reduce the quality of a finished product, thus the misoperation can be prevented, no matter the scraper pushes the push plate on the left side or the push plate on the right side, when the scraper pushes the push plate, the waste ink on the surface of the water tank is cleaned, one limit block can be in contact limitation, and only under the condition, the air feeding block can be stepped to move downwards to convey air into the liquid cavity, through the method, the operation error is reduced, and the smoothness of workers during working is improved, the working efficiency is improved, and the service life of the equipment can be prolonged due to the reduction of errors.

In summary, the invention has the following advantages: adopting a mobile spraying mode; guaranteed the atomizer remain throughout and the distance between the coating mould, realized just can be all scribble the film to the activator once the motion on, avoided the inhomogeneous problem of spraying, but also can improve work efficiency.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a cross-sectional view taken along a-a of fig. 2.

Fig. 4 is a cross-sectional view taken along B-B of fig. 2.

Fig. 5 is a cross-sectional view of the step taken along line C-C of fig. 2.

Fig. 6 is an enlarged view of a portion a in fig. 3.

Fig. 7 is an enlarged view at B in fig. 4.

Fig. 8 is an enlarged view at C in fig. 3.

Fig. 9 is an enlarged view at D in fig. 5.

Fig. 10 is an enlarged view at E in fig. 3.

Detailed Description

A three-dimensional curved surface coating transfer printing method comprises the following steps: (1) transfer film: pre-printing a desired pattern on a water-soluble film, which is provided by a coating film supplier; (2) releasing the film: cutting the coating film into the required specification of a workpiece, placing the workpiece on the water surface, and exhausting air between water and the film to ensure that the workpiece is completely attached to the water surface; (3) and (3) activation: spraying an activating agent on the film through an activating device to activate the pattern on the film into an ink state; (4) transfer printing: transferring the pattern activated into the ink state onto a workpiece to be printed by using water pressure; (5) washing with water: washing the residual film after the transfer printing with a washing line; (6) drying: drying the printed workpiece by using an oven; (7) spraying finish paint; spraying a transparent protective layer (gloss oil) on the dried workpiece to protect the surface, and drying again.

As shown in fig. 1-10, the activation equipment comprises a frame 1, a water tank 11, a first water storage cavity 12, a scraper 13, a cleaning part 3, a water feeding part 4, an air feeding part 7 and an activation rod 2; the device comprises an atomizing nozzle 21, a first cavity 22, a control rod 23, a control block 24, a liquid cavity 25, an activation tube 26 and a limiting component 8; the water tank 11 is arranged on the frame 1, the first water storage cavity 12 is arranged on the frame 1, the scraper 13 is slidably arranged on the frame 1, the cleaning parts 3 are symmetrically arranged on the water tank 11, the water feeding part 4 is arranged on the first water storage cavity 12, the air feeding part 7 is symmetrically arranged on the frame 1, and the activation rod 2 is slidably arranged on the frame 1; the atomizing nozzles 21 are uniformly distributed along the length direction of the activation rod 2, the first cavity 22 is arranged on the activation rod 2, the control rod 23 is arranged on the first cavity 22 in a vertically displaceable manner and is used for controlling the atomizing nozzles 21 to discharge liquid, the control blocks 24 are symmetrically arranged at two ends of the control rod 23, the liquid cavity 25 is arranged on the activation rod 2 and is used for storing an activating agent, the activation tube 26 is used for conveying the activating agent to the first cavity 22, and the limiting assemblies 8 are symmetrically arranged at two ends of the liquid cavity 25; air is conveyed to the liquid cavity 25 through the air supply part 7 to generate air pressure, the activating pipe 26 conveys the activating agent to the first cavity 22 under the action of the air pressure, the activating rod 2 is held and moves upwards according to the control rod 23, the activating agent can come out from the atomizing nozzle 21, and then the activating rod 2 is moved, the activating agent can be uniformly sprayed on the covering die, so that the pattern on the film is activated into an ink state.

As shown in fig. 8 and 9, the cleaning component 3 includes a push plate 31, a weight block 32, a projection 33, a first empty groove 34, a slide block 35, a first groove 36, a leakage-proof block 37, a first spring 38, a drainage channel 39, and a cleaning plate 30; the push plate 31 is rotatably arranged on the frame 1, the balancing weight 32 is detachably arranged on the push plate 31, the convex blocks 33 are symmetrically arranged on the push plate 31, the first empty groove 34 is arranged on the frame 1, the sliding block 35 can be arranged on the first empty groove 34 in a vertically movable manner, the first grooves 36 are symmetrically arranged on the sliding block 35, the leakage-proof blocks 37 are used for preventing water leakage, the first spring 38 is used for resetting the sliding block 35, the drainage channel 39 is arranged on the frame 1, and the cleaning plate 30 is detachably arranged on the drainage channel 39; the convex block 33 is pressed against the inner wall of the first groove 36; after the transfer printing, the excess ink waste is still in the water, and the coating die can be put in after the ink waste is cleaned up by moving the scraper 13, in the course of the movement, the waste ink is collected to the side of the blade 13, and then, moves to the side where the waste ink exists, the blade 13 pushes against the push plate 31, and then, when the push plate 31 is rotated by the movement, one end thereof is floated out of the water, and the waste ink is located between the frame 1 and the push plate 31, then the scraper 13 is pushed, the push plate 31 rotates, one end of the projection 33 enters the inner wall of the first groove 36, thereby pushing the slide block 35 to move downwards, the drainage channel 39 is communicated with the water tank 11, the scraper 13 is pushed to rotate the push plate 31 to the vertical position, the waste water on the water enters the drainage channel 39 under the pushing of the push plate 31, the water and waste ink are separated by the action of the cleaning plate 30 and a portion of the water enters the first reservoir chamber 12 through the cleaning plate 30.

As shown in fig. 10, the water supply part 4 comprises a second cavity 41, an air supply plate 42, a second spring 43, a linkage assembly 5, a water supply plate 44, a second water storage cavity 45 and a water supply assembly 6; the air feeding plate 42 is arranged on the second cavity 41 in a vertically movable manner, the second spring 43 is used for pushing the air feeding plate 42, the linkage assembly 5 is arranged on the air feeding plate 42, the water feeding plate 44 is arranged on the air feeding plate 42, the second water storage cavity 45 is arranged between the water feeding plate 44 and the frame 1, and the water passing assembly 6 is used for communicating the water tank 11 with the first water storage cavity 12; the linkage assembly 5 allows the air plate 42 and the water plate 44 to move simultaneously, so that when the water plate 44 moves downwards, water in the second water storage chamber 45 enters the water tank 11, and when the water plate 44 moves upwards, water in the first water storage chamber 12 enters the second water storage chamber 45.

As shown in fig. 10, the linkage assembly 5 includes a second empty slot 51, a third empty slot 52, a linkage block 53, and a third spring 54; the water passing part 6 comprises a first water passing port 61, a first limiting block 62, a limiting plate 63, a first through groove 64, a second water passing port 65 and a second limiting block 66; the second empty groove 51 is arranged on the air feeding plate 42, the third empty groove 52 is arranged on the water feeding plate 44, the linkage block 53 is slidably arranged in the second empty groove 51, and the third spring 54 is used for resetting the linkage block 53; one end of the linkage block 53 can enter the third empty groove 52; the first limiting block 62 is arranged on the inner wall of the first water through opening 61, the limiting plate 63 is rotatably arranged on the first water through opening 61, the first through groove 64 is arranged on the first limiting block 62, and the second limiting block 66 is arranged on the second water through opening 65; when water on the water tank 11 needs to be supplemented, the linkage block 53 is stepped by a foot, one end of the linkage block enters the third empty tank 52, when the water delivery block moves downwards, water in the second water storage cavity 45 can prop against the first limiting plate 63 and meanwhile prop against the second limiting plate 66 upwards, when the second limiting plate 66 moves upwards, water can flow into the water tank 11 from a gap generated between the second limiting plate 66 and the second water drainage port 65, when the water delivery block moves upwards, water in the first water storage cavity 12 props against the limiting plate 63 under the action of suction force and flows into the second water storage cavity 45, and the second limiting plate 66 is closer to the inner wall of the second water drainage port 65 under the suction force of the second water storage cavity 45 and the self weight of the water in the water tank 11.

As shown in fig. 5 and 10, the air supply member 7 includes a third cavity 71, an air vent 72, an air vent hose 73, a first check valve 74, and a second check valve 75; the third cavity 71 is arranged on the frame 1 and can allow the activation rod 2 to move, the air vent 72 is communicated with the second cavity 41, the air vent hose 73 is arranged on the third cavity 71, two ends of the air vent hose are respectively communicated with the air vent 72 and the liquid cavity 25, the first one-way valve 74 is arranged on the air vent hose 73 and is close to one side of the liquid cavity 25, and the second one-way valve 75 allows air to enter the second cavity 41; when the liquid cavity 25 needs to be inflated, the air feeding plate 42 is horizontally stepped, at this time, the linkage block 53 is reset under the action of the spring, the air feeding plate 42 is separated from the water feeding plate 44, the bottom of the air feeding plate 42 is completely attached to the second cavity 41, when the air feeding plate 42 moves downwards, air in the second cavity 41 enters the liquid cavity 25 through the air hose 73, and therefore air pressure is generated inside the liquid cavity 25; the symmetrical arrangement of the hoses allows the liquid chamber 25 to be inflated a shorter distance and, being soft, does not affect the quality of the ventilation as the activation rod 2 moves.

As shown in fig. 9, the limiting assembly 8 includes a second through slot 81, a third limiting block 82, a pull rope 83, and a fourth spring 84; the second through groove 81 is arranged on the frame 1, the third limiting block 82 is arranged on the second through groove 81 in a manner of moving left and right, the pull rope 83 is arranged on the second through groove 81, two ends of the pull rope are respectively connected with the convex block 33 and the third limiting block 82, and the fourth spring 84 is used for pushing the third limiting block 82 to enter the air vent 72; one end of the third stopper 82 can enter the vent 72; when the push plates 31 on both sides are in the initial position, the second limit blocks the vent 72, so that air cannot enter the liquid cavity 25.

Claims

1. A three-dimensional curved surface coating transfer printing method is characterized in that: the method comprises the following steps:

(1) transfer film: pre-printing a desired pattern on a water-soluble film, which is provided by a coating film supplier;

(2) releasing the film: cutting the coating film into the required specification of a workpiece, placing the workpiece on the water surface, and exhausting air between water and the film to ensure that the workpiece is completely attached to the water surface;

(3) and (3) activation: spraying an activating agent on the film through an activating device to activate the pattern on the film into an ink state;

(4) transfer printing: transferring the pattern activated into the ink state onto a workpiece to be printed by using water pressure;

(5) washing with water: washing the residual film after the transfer printing with a washing line;

(6) drying: drying the printed workpiece by using an oven;

(7) spraying finish paint: spraying a transparent protective layer (gloss oil) on the dried workpiece to protect the surface, and drying again;

the activation equipment comprises a frame (1), a water tank (11) arranged on the frame (1), a first water storage cavity (12) arranged on the frame (1), a scraping plate (13) slidably arranged on the frame (1), cleaning parts (3) symmetrically arranged on the water tank (11), a water feeding part (4) arranged on the first water storage cavity (12), a gas feeding part (7) symmetrically arranged on the frame (1), and an activation rod (2) slidably arranged on the frame (1); the activation rod (2) further comprises atomizing nozzles (21) which are uniformly distributed along the length direction of the activation rod (2), a first cavity (22) which is arranged on the activation rod (2), a control rod (23) which is arranged on the first cavity (22) in a vertically displaceable manner and is used for controlling the atomizing nozzles (21) to output liquid, control blocks (24) which are symmetrically arranged at two ends of the control rod (23), a liquid cavity (25) which is arranged on the activation rod (2) and is used for storing an activating agent, an activation pipe (26) which is used for conveying the activating agent to the first cavity (22), and limiting assemblies (8) which are symmetrically arranged at two ends of the liquid cavity (25); air is conveyed to the liquid cavity (25) through the air supply part (7) to generate air pressure, the activating pipe (26) can convey the activating agent to the first cavity (22) under the action of the air pressure, the activating rod (2) is held, the activating rod (23) moves upwards according to the control, the activating agent can come out of the atomizing nozzle (21), and then the activating rod (2) is moved, the activating agent can be uniformly sprayed on the covering die, so that the pattern on the film is activated into an ink state.

2. The method of claim 1, wherein: the cleaning component (3) comprises a push plate (31) rotatably arranged on the frame (1), a balancing weight (32) detachably arranged on the push plate (31), a convex block (33) symmetrically arranged on the push plate (31), a first empty groove (34) arranged on the frame (1), a sliding block (35) which can move up and down and is arranged on the first empty groove (34), a first groove (36) symmetrically arranged on the sliding block (35), a leakage-proof block (37) used for preventing water leakage, a first spring (38) used for resetting the sliding block (35), a drainage channel (39) arranged on the frame (1), and a cleaning plate (30) detachably arranged on the drainage channel (39); the lug (33) is pressed against the inner wall of the first groove (36); the method comprises the steps of moving a scraper (13), collecting waste ink to one side of the scraper (13) in the moving process, moving the scraper to one side with the waste ink, enabling the scraper (13) to push against a push plate (31), enabling one end of the push plate (31) to float out of the water surface when moving, enabling the waste ink to be located between a frame (1) and the push plate (31), then pushing the scraper (13), enabling the push plate (31) to rotate, enabling one end of a bump (33) to enter the inner wall of a first groove (36) to push against a sliding block (35) to move downwards, enabling a drainage channel (39) to be communicated with a water tank (11), enabling the scraper (13) to push, enabling the push plate (31) to rotate to the vertical position, enabling the waste ink on the water to enter a drainage channel (39) under the pushing of the push plate (31), water and waste ink are separated by the cleaning plate (30), and part of the water enters the first water storage cavity (12) through the cleaning plate (30).

3. The method of claim 1, wherein: the water supply part (4) comprises a second cavity (41), an air supply plate (42) which is arranged on the second cavity (41) in a vertically movable manner, a second spring (43) used for pushing the air supply plate (42), a linkage component (5) arranged on the air supply plate (42), a water supply plate (44) arranged on the air supply plate (42), a second water storage cavity (45) arranged between the water supply plate (44) and the frame (1), and a water supply component (6) used for communicating the water tank (11) and the first water storage cavity (12); let air feed board (42) and water feed board (44) simultaneous movement through linkage subassembly (5), when water feed board (44) down moved this moment, the water in second water storage chamber (45) can enter into basin (11), when water feed board (44) up moved, the water in first water storage chamber (12) can enter into second water storage chamber (45).

4. The method of claim 3, wherein: the linkage assembly (5) comprises a second empty groove (51) arranged on the air feeding plate (42), a third empty groove (52) arranged on the water feeding plate (44), a linkage block (53) slidably arranged in the second empty groove (51), and a third spring (54) for resetting the linkage block (53); one end of the linkage block (53) can enter a third empty groove (52); the water passing assembly (6) comprises a first water passing port (61), a first limiting block (62) arranged on the inner wall of the first water passing port (61), a limiting plate (63) rotatably arranged on the first water passing port (61), a first through groove (64) arranged on the first limiting block (62), a second water passing port (65) and a second limiting block (66) arranged on the second water passing port (65); when water on the water tank (11) needs to be supplemented, the linkage block (53) is stepped by a foot, one end of the linkage block enters the third empty tank (52), when the water delivery block moves downwards, water in the second water storage cavity (45) can prop against the first limiting block (63), and meanwhile can prop against the second limiting block (66) to move upwards, when the second limiting block (66) moves upwards, water can flow into the water tank (11) from a gap generated between the second limiting block (66) and the second water through opening (65), when the water delivery block moves upwards, water in the first water storage cavity (12) props against the limiting block (63) under the action of suction force and flows into the second water storage cavity (45), and the second limiting block (66) is closer to the inner wall of the second water through opening (65) under the suction force of the second water storage cavity (45) and the self weight of the water in the water tank (11).

5. The method of claim 1, wherein: the air feeding part (7) comprises a third cavity (71) which is arranged on the frame (1) and can allow the activation rod (2) to move, an air vent (72) communicated with the second cavity (41), an air vent hose (73) which is arranged on the third cavity (71) and two ends of which are respectively communicated with the air vent (72) and the liquid cavity (25), a first one-way valve (74) which is arranged on the air vent hose (73) and close to one side of the liquid cavity (25), and a second one-way valve (75) which allows air to enter the second cavity (41); when the liquid cavity (25) needs to be inflated, the air feeding plate (42) is horizontally stepped, the linkage block (53) is reset under the action of the spring, the air feeding plate (42) is separated from the water feeding plate (44), the bottom of the air feeding plate (42) is completely attached to the second cavity (41), and when the air feeding plate (42) moves downwards, air in the second cavity (41) enters the liquid cavity (25) through the air hose (73), so that air pressure is generated inside the liquid cavity (25).

6. The method of claim 1, wherein: the limiting assembly (8) comprises a second through groove (81) arranged on the frame (1), a second limiting block (66) arranged on the second through groove (81) in a left-right moving mode, a pull rope (83) arranged on the second through groove (81) and two ends of the pull rope are respectively connected with the lug (33) and the second limiting block (66), and a fourth spring (84) used for pushing the second limiting block (66) to enter the air vent (72); one end of the second limiting block (66) can enter the air vent (72); when the push plates (31) on the two sides are in the initial position, the second limit position can block the vent hole (72) and air can not enter the liquid cavity (25).