Perovskite flat plate coating machine die head cleaning liquid recovery device

Abstract

The invention relates to a perovskite flat plate coating machine die head cleaning liquid recovery device which comprises a base and a rack arranged on the base in a sliding mode, and a coating die head is arranged on the rack in a sliding mode. A roller is rotationally installed on the base, a recycling box used for collecting cleaning liquid is arranged under the roller, and a filtering device and a purifying device which are used for filtering and purifying the cleaning liquid are installed on the base. Cleaning liquid is recycled, filtered and purified through the filtering device and the purifying device, so that the cleaning liquid is recycled, the requirement for a new water source is reduced, and water resources are saved; by means of cyclic utilization of the cleaning fluid, the purchase demand for new cleaning fluid is reduced, and therefore the cleaning cost is reduced; and the cleaning liquid is quickly recycled and treated, so that the shutdown time caused by waiting for treatment of the cleaning liquid is shortened, and the use efficiency and the production capacity of the coating machine are improved.

Description

Technical Field

[0001] The invention relates to the technical field of coating machines, in particular to a perovskite flat coating machine die head cleaning liquid recovery device. Background Art

[0002] Slit coating is a coating technology that presses the coating liquid out along the gap of the mold and transfers it to the moving substrate under a certain pressure. The coating liquid is squeezed out along the lip of the gap of the coating mold under a certain pressure and maintains a certain flow rate, and is coated on the surface of the substrate. In recent years, due to the high controllability of the thickness and thickness uniformity of the coating film by the extrusion slit coating method, this coating method has been widely used in the research and development, production and manufacturing of new industries such as new thin-film solar cells, new displays, optical functional films, and environmentally friendly permeable films. With the improvement of the process, the thickness of the new coating film can be controlled to sub-micron and micron thickness. Therefore, the slit coating method can be applied to the packaging process to better achieve low-cost, high-quality packaging process.

[0003] Due to the difference in die cavity structure and the coating slurry used, the existing die will settle and solidify after a certain period of coating, resulting in scratches and uneven coating. Therefore, the slit coating die must be cleaned before and after the slit coating method. To achieve the cleaning of the coating die.

[0004] A Chinese patent with publication number CN221753728U discloses an efficient cleaning spray device for a coating die head, which includes a spray base, an I-shaped platform is provided at the left and right ends of the spray base, a spray mounting seat is provided on the platform, and a diffusion nozzle, a direct nozzle and an air knife nozzle are provided on the opposite inner side walls of the left and right spray mounting seats, and the diffusion nozzle is arranged in the middle of the spray mounting seat; the spray base is arranged below the cleaning inner tank, and the cleaning inner tank is arranged between the left and right spray mounting seats; the spray base is connected to a transmission mechanism, and is driven by the transmission mechanism to move and spray. The present invention realizes that the coating die lip is washed, cleaned and dried immediately, and is efficiently cleaned and blown dry, which greatly improves the efficiency of automated production and is conducive to application in mass production of coating systems. In the above scheme, only the coating die head is cleaned, and the cleaning liquid is not recycled. If these cleaning liquids are not specially treated, the environment will be polluted. Summary of the invention

[0005] The purpose of the present invention is to provide a perovskite flat-plate coating machine die head cleaning liquid recovery device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a perovskite flat coater die head cleaning liquid recovery device, comprising a base and a frame slidably arranged on the base, on which a coating die head is slidably arranged; a roller is rotatably installed on the base, and a recovery box for collecting cleaning liquid is arranged directly below the roller; a filtering device and a purification device for filtering and purifying the cleaning liquid are installed on the base, and when in use, the coating die head is in contact with the roller.

[0007] Compared with the prior art, the cleaning liquid is recovered, filtered and purified through a filtering device and a purification device, so that the cleaning liquid can be recycled, reducing the demand for new water sources and saving water resources; the recycling of the cleaning liquid reduces the demand for purchasing new cleaning liquid, thereby reducing the cleaning cost; the rapid recovery and treatment of the cleaning liquid reduces the downtime due to waiting for the cleaning liquid to be treated, and improves the use efficiency and production capacity of the coating machine.

[0008] According to the preferred technical solution of the present invention, two support seats are fixedly installed on the base, a roller is rotatably installed between the two support seats, a driven synchronous wheel is fixedly installed on one end of the roller, a driving source is installed on the base, an active synchronous wheel is installed on the output end of the driving source, and the active synchronous wheel and the driven synchronous wheel are connected by a synchronous belt transmission.

[0009] According to the preferred technical solution of the present invention, two connecting seats are fixedly installed on the base, the two connecting seats are located between the two supporting seats and directly below the roller; a lifting cylinder is fixedly installed on each connecting seat, and a recovery box is fixedly installed between the two lifting cylinders.

[0010] According to the preferred technical solution of the present invention, a receiving groove adapted to the roller is arranged in the recovery box; and a liquid outlet pipe connected to the receiving groove is arranged at the bottom of the recovery box.

[0011] According to the preferred technical solution of the present invention, a scraper assembly is arranged on one side of the roller, and the scraper assembly includes a scraper seat fixedly mounted on the base, an adjusting cylinder fixedly mounted on the scraper seat, a fixed seat fixedly mounted on the output end of the adjusting cylinder, a scraper installed on the fixed seat, and the scraping direction of the scraper is opposite to the rotation direction of the roller.

[0012] According to the preferred technical solution of the present invention, the filtering device comprises a hollow filtering tank fixedly mounted on a base, a liquid inlet pipe is mounted on the top of the filtering tank, and the liquid inlet pipe and the liquid outlet pipe are connected through a pipeline; a liquid flow pipe is arranged at the bottom of the filtering tank, and the liquid flow pipe is connected through the top of the purification device.

[0013] According to the preferred technical solution of the present invention, the purification device comprises a purification tank fixedly mounted on a base, a one-way valve is fixedly mounted on the top of the purification tank, the one-way valve and the liquid passing pipe are through-connected; a reflux pipe is arranged at the bottom of the purification device.

[0014] According to the preferred technical solution of the present invention, two lifting components for driving the coating die head to move on the frame are fixedly mounted on the frame, a mounting plate is installed between the two lifting components, and the coating die head is fixedly mounted on the mounting plate.

[0015] According to the preferred technical solution of the present invention, the lifting component includes a lifting seat fixedly mounted on a frame, a sliding plate that moves up and down is slidably mounted on the lifting seat, and both sides of the sliding plate extend to both sides of the lifting seat; connecting rods are fixedly mounted on both sides of the sliding plate, and lifting cylinders are vertically mounted on both sides of the lifting seat, and the output ends of the lifting cylinders are fixedly connected to the connecting rods; a transition plate is fixedly mounted on the sliding plate, and a connecting plate that moves horizontally is slidably mounted on the transition plate; and the end of the mounting plate is fixedly connected to the connecting plate.

[0016] According to the preferred technical solution of the present invention, a positioning column is provided on the connecting plate; and a positioning hole matched with the positioning column is provided on the mounting plate.

[0017] In addition to the technical problems solved by the present invention, the technical features that constitute the technical solution, and the advantages brought by the technical features of the technical solution described above, other technical problems that can be solved by the present invention, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the recovery device of the present invention assembled on a coating machine.

[0019] Figure 2 It is a three-dimensional schematic diagram of the recovery device of the present invention.

[0020] Figure 3 It is a three-dimensional schematic diagram of the wiper assembly of the present invention.

[0021] Figure 4 It is a three-dimensional schematic diagram of the filtering device and the purifying device of the present invention.

[0022] Figure 5 It is a cross-sectional view of the mounting plate of the present invention.

[0023] Explanation of the accompanying figures: 01, base; 02, frame; 03, coating die head; 04, lifting component; 05, mounting plate; 06, lifting seat; 07, sliding plate; 08, connecting rod; 09, lifting cylinder; 10, transition plate, 11, connecting plate; 12, pushing cylinder; 13, positioning column; 14, positioning hole; 15, supporting seat; 16, roller; 17, driving source; 18, connecting seat; 19, lifting cylinder; 20, recovery box; 21, containing tank; 22, liquid outlet pipe; 23, scraper seat; 24, adjustment cylinder; 25, fixed seat; 26, scraper; 27, filter tank, 28, liquid inlet pipe; 29, liquid passing pipe; 30, purification tank; 31, one-way valve; 32, reflux pipe. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] See also Figure 1-5 As shown, the perovskite flat plate coating machine die head cleaning liquid recovery device of the present invention comprises a base 01 and a frame 02 slidably arranged on the base 01, and a coating die head 03 is slidably arranged on the frame 02. Two lifting components 04 for driving the coating die head 03 to move on the frame 02 are fixedly installed on the frame 02, and a mounting plate 05 is installed between the two lifting components 04, and the coating die head 03 is fixedly installed on the mounting plate 05.

[0026] See also Figure 1 , 5 As shown, the lifting component 04 includes a lifting seat 06 fixedly mounted on the frame 02 by fasteners, two sliding guide rails are installed in parallel in the vertical direction in the lifting seat 06, and a sliding plate 07 is fixedly installed on the sliding guide rails, and both sides of the sliding plate 07 extend to both sides of the lifting seat 06. Connecting rods 08 are fixedly installed on both sides of the sliding plate 07, and lifting cylinders 09 are vertically installed on both sides of the lifting seat 06, and the output end of the lifting cylinder 09 is fixedly connected to the connecting rod 08. When the lifting cylinder 09 is working, it drives the sliding plate 07 to move up and down along the sliding guide rails. A transition plate 10 is fixedly installed on the sliding plate 07, and two sliding guide rails are fixedly installed on the transition plate 10 in the horizontal direction, and a connecting plate 11 is fixedly installed on the sliding guide rails. A push cylinder 12 is installed in the horizontal direction between the two sliding guide rails, and the output end of the push cylinder 12 is fixedly connected to the connecting plate 11. The end of the above-mentioned mounting plate 05 is fixedly connected to the connecting plate 11. When the push cylinder 12 is working, it pushes the connecting plate 11 to move horizontally. Adapt to different lengths of mounting plates 05.

[0027] See also Figure 5As shown, a positioning column 13 is provided on the connecting plate 11. A positioning hole 14 adapted to the positioning column 13 is provided on the mounting plate 05. During assembly, the positioning hole 14 on the mounting plate 05 is installed on the positioning column 13, and then the fastener is passed through the through hole on the mounting plate 05 to connect with the threaded hole on the positioning column 13, so as to achieve a fixed connection between the mounting plate 05 and the connecting plate 11. Since two positioning holes 14 are processed on the mounting plate 05, when the positioning holes 14 are processed, the center distance between the two positioning holes 14 remains fixed. When fixing the mounting plate 05, the center distance between the two positioning columns 13 can be fine-tuned by pushing the cylinder 12. Make it match the center distance between the two positioning holes 14. This allows the operator to achieve a fixed connection between the mounting plate 05 and the connecting plate 11 more quickly.

[0028] Two support seats 15 are fixedly installed on the base 01, and the two support seats 15 are located at one end of the base 01. A roller 16 is rotatably installed between the two support seats 15 through a rolling bearing, so that the roller 16 can rotate between the two support seats 15. A driven synchronous wheel is fixedly installed on one end of the roller 16, and a driving source 17 is installed on the base 01. The driving source 17 is located on one side of one of the support seats 15 and is adjacent to it. An active synchronous wheel is installed on the output end of the driving source 17. The active synchronous wheel and the driven synchronous wheel are connected by a synchronous belt transmission. The driving source 17 adjacent to the support seat 15 is a servo motor, and other equipment in the prior art can also be used to act on the roller 16 to make it rotate on the support seat 15.

[0029] See also Figure 2-4 As shown, two connecting seats 18 are fixedly installed on the base 01, and the two connecting seats 18 are located between the two supporting seats 15 and directly below the roller 16. A lifting cylinder 19 is fixedly installed on each connecting seat 18, and the output end of the lifting cylinder 19 is vertically upward. A recovery box 20 is fixedly installed between the two lifting cylinders 19 through fasteners, and a receiving groove 21 adapted to the roller 16 is provided in the recovery box 20. A liquid outlet pipe 22 connected to the receiving groove 21 is provided at the bottom of the recovery box 20.

[0030] Under normal conditions (when the coating grinding head is not cleaned), the output end of the lifting cylinder 19 is in a retracted state, so that the recovery box 20 and the roller 16 are separated. The purpose of this setting design is to allow the roller 16 to air dry quickly. When the roller 16 needs to be replaced or the recovery box 20 needs to be cleaned manually, sufficient space is set between the roller 16 and the recovery box 20 bracket to facilitate manual operation.

[0031] In the working state (when the coating grinding head is being cleaned), first, the coating grinding head moves toward the roller 16 under the action of the lifting component 04, so that the coating die 03 and the roller 16 are in contact. Then the roller 16 is rotated under the action of the driving source 17. At the same time, the output end of the lifting cylinder 19 extends out to narrow the gap between the recovery box 20 and the roller 16, ensuring that all the liquid on the roller 16 can flow into the receiving tank 21. The cleaning liquid enters the coating die 03 to clean the inside of the coating die 03. The cleaning liquid carries glue from the glue outlet of the coating die 03 to the roller 16. Since the roller 16 is in a rotating state during the cleaning process, the rotation of the roller 16 transfers the cleaning liquid to the receiving tank 21. The cleaning liquid entering the receiving tank 21 flows out from the liquid outlet pipe 22 and enters.

[0032] Since the cleaning liquid is transferred by rotating, the roller 16 is prevented from returning the cleaning liquid and the glue carried by it to the glue outlet of the coating die head again during the rotation process to cause wear to the coating die head 03. A scraper assembly is arranged on one side of the roller 16, and the scraper assembly includes a scraper seat 23 fixedly mounted on the base 01, an adjustment cylinder 24 fixedly mounted on the scraper seat 23, a fixed seat 25 fixedly mounted on the output end of the adjustment cylinder 24, and a scraper 26 installed on the fixed seat 25, and the scraping direction of the scraper 26 is opposite to the rotation direction of the roller 16. Since the cleaning liquid flows into the roller 16 from the glue outlet of the coating die head 03, the roller 16 drives the cleaning liquid to move into the recovery box 20 when rotating. Therefore, the cleaning liquid attached to the roller 16 is removed by the arrangement of the scraper 26, thereby ensuring that the cleaning liquid attached to the roller 16 cannot pass through the glue outlet of the coating die head 03 again. Therefore, the cleaning liquid causes damage to the glue outlet of the coating die head 03.

[0033] At the same time, by adjusting the setting of the cylinder 24, when the recovery box 20 moves up and down, the scraper 26 can move up and down synchronously. It can also ensure that the scraper 26 and the roller 16 are separated under normal conditions. Under working conditions, by adjusting the relative position between the scraper and the roller 16, the scraper 26 can be ensured to scrape off all the cleaning liquid attached to the roller 16.

[0034] See also Figure 4As shown, the cleaning liquid flowing out from the liquid outlet pipe 22 is mixed with impurities, particulate matter and possible pollutants. In order to separate the impurities, particulate matter and possible pollutants from the cleaning liquid, the cleaning liquid can be used again, and the impurities, particulate matter and possible pollutants are recycled. A filtering device and a purifying device are fixedly mounted on the base 01. The filtering device includes a hollow filter tank 27 fixedly mounted on the base 01. A liquid inlet pipe 28 is installed on the top of the filter tank 27. The liquid inlet pipe 28 and the liquid outlet pipe 22 are connected by a pipeline. The cleaning liquid enters the filter tank 27 through the pipeline. A liquid pipe 29 is arranged at the bottom of the filter tank 27, and the liquid pipe 29 is connected to the top of the purifying device. A coarse-effect filter, a medium-effect filter and a high-efficiency filter are arranged in the filter tank 27. The cleaning liquid is filtered through coarse, medium and high efficiency filters to filter impurities, particulate matter and possible pollutants in the cleaning liquid. The purification device includes a purification tank 30 fixedly mounted on the base 01, and a one-way valve 31 is fixedly mounted on the top of the purification tank 30. The one-way valve 31 is connected to the liquid pipe 29. A return pipe 32 is arranged at the bottom of the purification device. The cleaning liquid filtered by the filter device enters the one-way valve 31 on the top of the purification tank 30 from the liquid pipe 29 and enters the purification tank 30. The filtered cleaning liquid is purified, and the purified cleaning liquid is discharged from the return pipe 32 and can be reused, thereby reducing wastewater discharge and reducing pollution to the environment. Through recycling and purification, the cleaning liquid can be recycled, reducing the demand for new water sources and saving water resources. The recycling of the cleaning liquid reduces the demand for purchasing new cleaning liquid, thereby reducing the cleaning cost. The rapid recovery and treatment of the cleaning liquid reduces the downtime due to waiting for the cleaning liquid treatment, and improves the use efficiency and production capacity of the coating machine.

[0035] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A perovskite flat plate coating machine die head cleaning liquid recovery device, characterized in that: It includes a base and a frame slidably arranged on the base, a coating die head is slidably arranged on the frame; a roller is rotatably installed on the base, a recovery box for collecting cleaning liquid is arranged directly below the roller, a filtering device and a purification device for filtering and purifying the cleaning liquid are installed on the base, and when in use, the coating die head contacts with the roller.

2. The perovskite flat plate coating machine die head cleaning liquid recovery device according to claim 1, characterized in that: Two support seats are fixedly installed on the base, a roller is rotatably installed between the two support seats, a driven synchronous wheel is fixedly installed on one end of the roller, a driving source is installed on the base, an active synchronous wheel is installed on the output end of the driving source, and the active synchronous wheel and the driven synchronous wheel are connected by a synchronous belt transmission.

3. The perovskite flat plate coating machine die head cleaning liquid recovery device according to claim 2, characterized in that: Two connecting seats are fixedly installed on the base, and the two connecting seats are located between the two supporting seats and directly below the roller; a lifting cylinder is fixedly installed on each connecting seat, and a recovery box is fixedly installed between the two lifting cylinders.

4. The perovskite flat plate coating machine die head cleaning liquid recovery device according to claim 3, characterized in that: A receiving groove matched with the roller is arranged in the recovery box; and a liquid outlet pipe connected with the receiving groove is arranged at the bottom of the recovery box.

5. The perovskite flat plate coating machine die head cleaning liquid recovery device according to claim 1, characterized in that: A scraper assembly is arranged on one side of the roller, and the scraper assembly includes a scraper seat fixedly mounted on the base, an adjusting cylinder fixedly mounted on the scraper seat, a fixed seat fixedly mounted on the output end of the adjusting cylinder, a scraper installed on the fixed seat, and the scraping direction of the scraper is opposite to the rotation direction of the roller.

6. The perovskite flat plate coating machine die head cleaning liquid recovery device according to claim 1, characterized in that: The filtering device comprises a hollow filtering tank fixedly mounted on a base, a liquid inlet pipe is mounted on the top of the filtering tank, and the liquid inlet pipe and the liquid outlet pipe are connected through a pipeline; a liquid flow pipe is arranged at the bottom of the filtering tank, and the liquid flow pipe is connected through the top of the purification device.

7. The perovskite flat plate coating machine die head cleaning liquid recovery device according to claim 6, characterized in that: The purification device comprises a purification tank fixedly mounted on a base, a one-way valve fixedly mounted on the top of the purification tank, the one-way valve and the liquid passing pipe are through-connected; a reflux pipe is arranged at the bottom of the purification device.

8. The perovskite flat plate coating machine die head cleaning liquid recovery device according to claim 1, characterized in that: Two lifting components for driving the coating die head to move on the frame are fixedly installed on the frame, a mounting plate is installed between the two lifting components, and the coating die head is fixedly installed on the mounting plate.

9. The perovskite flat plate coating machine die head cleaning liquid recovery device according to claim 8, characterized in that: The lifting component includes a lifting seat fixedly installed on the frame, a sliding plate that moves up and down is slidably installed on the lifting seat, and both sides of the sliding plate extend to both sides of the lifting seat; connecting rods are fixedly installed on both sides of the sliding plate, and lifting cylinders are vertically installed on both sides of the lifting seat, and the output ends of the lifting cylinders are fixedly connected to the connecting rods; a transition plate is fixedly installed on the sliding plate, and a connecting plate that moves horizontally is slidably installed on the transition plate; the end of the mounting plate is fixedly connected to the connecting plate.

10. The perovskite flat plate coating machine die head cleaning liquid recovery device according to claim 9, characterized in that: The connection plate is provided with a positioning column; the mounting plate is provided with a positioning hole adapted to the positioning column.

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