CN116078596A

CN116078596A - Vacuum spraying equipment

Info

Publication number: CN116078596A
Application number: CN202310105669.6A
Authority: CN
Inventors: 任建强; 张群芳
Original assignee: Zhejiang Hete Photoelectricity Co ltd
Current assignee: Zhejiang Hete Photoelectricity Co ltd
Priority date: 2023-01-29
Filing date: 2023-01-29
Publication date: 2023-05-09

Abstract

The utility model relates to a vacuum spraying equipment, it includes the frame, cladding in the outer housing of frame, connect vacuum generator on the housing, set up the delivery track in the housing and set up the coating mechanism in the housing, vacuum generator and housing inner chamber intercommunication, coating mechanism includes the dust cover, slides and sets up a plurality of shower nozzles in the dust cover, connect in the liquid drive spare of shower nozzle, drive shower nozzle horizontal reciprocating motion's horizontal drive spare and drive the vertical drive spare of dust cover vertical movement, be provided with the medical kit that is used for holding passivation material in the frame, medical kit and liquid drive spare intercommunication, the dust cover can be with the work piece cover in locating. The workpiece is covered by the dust cover, and then the passivation agent is sprayed, so that the passivation agent is not easy to diffuse in the cover body in the spraying process, and the machine is not easy to be influenced by contact with the passivation agent.

Description

Vacuum spraying equipment

Technical Field

The application relates to the technical field of photovoltaic equipment, in particular to vacuum spraying equipment.

Background

In the manufacturing process of the light absorption layer in the solar cell, the problems of uneven crystallization quality, more defects and the like are unavoidable, and the efficiency and the stability of the solar cell are reduced. In order to inhibit the generation of such problems, a passivation material is generally coated on the surface of the light absorbing layer, so as to induce crystal secondary growth and passivation defects, thereby improving the electrical performance of the solar cell.

At present, a vacuum spraying mode is usually adopted when a passivation material is coated, but the spraying range of the passivation material cannot be limited in the spraying process, so that the passivation material flows in a disordered manner in a vacuum environment and is in great contact with a container in the vacuum environment to generate chemical corrosion, and the service life of processing equipment is seriously influenced.

It is therefore necessary to propose a new solution to the above-mentioned problems.

Disclosure of Invention

In order to eliminate adverse effects of the passivation material on the apparatus when the passivation material is sprayed, the present application provides a vacuum spraying apparatus.

The application provides a vacuum spraying equipment adopts following technical scheme:

the utility model provides a vacuum spraying equipment, includes the frame, cladding in the outer housing of frame, connect vacuum generator on the housing, set up the delivery track in the housing and set up the coating mechanism in the housing, vacuum generator and housing inner chamber intercommunication, the coating mechanism includes the dust cover, slides and set up a plurality of shower nozzles in the dust cover, connect in the liquid drive spare of shower nozzle, the horizontal drive spare of the horizontal reciprocating motion of drive shower nozzle and drive the vertical drive spare of the vertical removal of dust cover, be provided with the medical kit that is used for holding passivation material in the frame, medical kit and liquid drive spare intercommunication, the dust cover can be with the work piece cover in locating.

Through adopting above-mentioned technical scheme, utilize the dust cover to cover the work piece, later carry out the spraying of passivation medicament again, the in-process passivation medicament at the spraying is difficult for the internal diffusion of cover to make machinery be difficult for contacting with passivation medicament and receiving the influence.

Optionally: and the two side walls of the inner cavity of the dust cover, which are perpendicular to the moving direction of the spray head, are provided with yielding grooves, and the spray head can move into the yielding grooves.

Through adopting above-mentioned technical scheme, start the shower nozzle with the inslot of stepping down to reuse the shower nozzle to spray the work piece after the shower nozzle evenly sprays passivation medicament, make the more even of spraying, thereby promote the effect of spraying.

Optionally: the dustproof cover is characterized in that a baffle plate with an opening at the lower end of the dustproof cover is fixed at the lower end of the inner wall of the dustproof cover, a communication hole penetrates through the baffle plate, and the inner wall of the communication hole can be abutted to the side wall of a workpiece.

Through adopting above-mentioned technical scheme, utilize the baffle to hinder the removal of passivation medicament towards the delivery track to when spraying the work piece, utilize the baffle to block the removal of passivation medicament towards the delivery track, reduce the quantity that delivery track contacted with passivation medicament, make the delivery track be difficult for receiving the influence of passivation medicament.

Optionally: guide plates are fixed on the inner walls of the communication holes, adjacent guide plates are abutted to each other, one ends of the guide plates, far away from the communication holes, are inclined upwards, and the upper ends of the guide plates can be abutted to the side walls of the workpieces.

Through adopting above-mentioned technical scheme, utilize the guide vane to further reduce the clearance between intercommunicating pore and the work piece, make passivation medicament be difficult for flowing to the delivery track from the clearance between intercommunicating pore and the work piece, further reduce the delivery track and receive the influence of passivation medicament.

Optionally: the dust cover is internally provided with a scraping plate in a sliding manner, the scraping plate can push particles floating in the dust cover to one place, and the dust cover is internally provided with a separation driving piece for pushing the scraping plate to reciprocate.

Through adopting above-mentioned technical scheme, after the shower nozzle spraying is accomplished, horizontal migration in scraper blade and the dust cover to make the passivation medicament particle that floats in the dust cover adhere to on the scraper blade, when follow-up dust cover upwards moves, passivation medicament particle can not get into in the housing.

Optionally: the two side walls of the scraper perpendicular to the moving direction of the scraper are both fixedly provided with adsorption sheets, and the adsorption sheets can adsorb passivation medicament particles.

By adopting the technical scheme, the passivation medicament particles are adsorbed by the adsorption sheet, so that the passivation medicament particles are not easy to generate dripping due to aggregation into small liquid drops.

Optionally: the upper end of the baffle is fixed with a first absorption part for absorbing the passivation agent, and the vertical inner wall of the dust cover and the yielding groove are both provided with a second absorption part for absorbing the passivation agent.

Through adopting above-mentioned technical scheme, utilize first absorption spare and second absorption spare to adsorb the passivation medicament that the shower nozzle sprayed, make passivation medicament be difficult for directly with dust cover and baffle contact to increase dust cover and baffle's life, and can incline first absorption spare and second absorption spare, repeatedly usable.

Optionally: the second absorbing part is rotationally connected with a plurality of limiting blocks, a plurality of limiting holes communicated with the inner cavity of the dust cover are formed in the dust cover, the limiting holes can penetrate through the limiting holes, and the side wall, close to the second absorbing part, of the limiting blocks can be abutted to the outer wall of the dust cover.

Through adopting above-mentioned technical scheme, utilize the cooperation of stopper and spacing hole to be connected second adsorption equipment and dust cover, only need rotate the stopper in-process of connecting can realize the dismantlement and the installation of second adsorption equipment.

Optionally: the baffle can be dismantled and connect on the dust cover, the baffle upper end is fixed with a plurality of extension blocks, it is provided with a plurality of grafting pieces to slide on the dust cover, the grafting piece can wear to establish in the extension block.

Through adopting above-mentioned technical scheme, utilize the cooperation of plug block and extension piece to realize the detachable connection of baffle and dust cover to can break away from baffle and dust cover after using a period, thereby be convenient for the change of first absorption spare and second absorption spare.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the workpiece is covered by the dust cover, then the workpiece is sprayed with the passivation agent by the spray head, and the spraying area of the passivation agent is limited by the dust cover in the spraying process, so that the structures such as the machine frame are not easy to be influenced by the passivation agent, and the service life is prolonged;

2. after the passivation agent spraying is completed, the scraper moves horizontally so that passivation agent particles floating in the dust cover are adsorbed by the scraper, and the particles of the passivation agent are not easy to disperse in the housing after the dust cover moves upwards.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a schematic diagram showing the structure of a coating mechanism according to an embodiment of the present application;

fig. 3 is a schematic diagram for showing an internal structure of a dust cover according to an embodiment of the present application.

In the figure, 1, a rack; 11. a housing; 12. a vacuum generator; 13. a conveying rail; 14. a medicine box; 2. a coating mechanism; 21. a dust cover; 211. a relief groove; 212. a limiting hole; 22. a spray head; 23. a liquid driving member; 24. a horizontal driving member; 25. a vertical driving member; 26. a plug block; 27. a second adsorption member; 28. a limiting block; 3. a baffle; 31. a communication hole; 32. an extension block; 321. a plug hole; 33. a guide piece; 34. a first absorbent member; 4. a scraper; 41. separating the driving piece; 42. and (3) an adsorption sheet.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The vacuum spraying equipment disclosed by the application comprises a frame 1, a housing 11 coated outside the frame 1, a vacuum generator 12 connected to the housing 11, a conveying track 13 arranged in the housing 11 and a coating mechanism 2 arranged in the housing 11 as shown in fig. 1 and 2. The housing 11 is fixed to the outside of the frame 1 by bolts so that the frame 1 is located in a space inside the housing 11, and the vacuum generator 12 communicates with the inside of the housing 11 so as to vacuum the inside of the housing 11, thereby making the processing environment vacuum. The conveying rail 13 is a belt conveying mechanism that conveys the workpiece from the previous process into the housing 11, and conveys the processed workpiece out of the housing 11 to the next process, and the processing environment of the adjacent process is also vacuum. The coating mechanism 2 comprises a dust cover 21 arranged in a lower opening, a plurality of spray heads 22 arranged in the dust cover 21 in a sliding manner, a liquid driving piece 23 connected with the spray heads 22, a horizontal driving piece 24 for driving the spray heads 22 to horizontally reciprocate and a vertical driving piece 25 for driving the dust cover 21 to vertically move. In this embodiment, a screw sliding table is selected as the horizontal driving member 24, the frame body of the horizontal driving member 24 is fixed on the top surface of the inner cavity of the dust cover 21 by using bolts, the sliding table of the horizontal driving member 24 is fixed with a mounting plate by using bolts, and the spray heads 22 are all fixed on the lower end surface of the mounting plate by using bolts. The vertical driving member 25 is an air cylinder in this embodiment, the fixed end of the vertical driving member 25 is fixed on the frame 1 by using a bolt, and the movable end of the vertical driving member 25 is fixed with the upper end of the dust cover 21 by using a bolt, so as to drive the dust cover 21 to move vertically. The rack 1 is also fixed with a medicine box 14 for containing passivation materials by using bolts, the liquid driving part 23 selects a water pump in the embodiment, the water inlet end of the liquid driving part 23 is communicated with the medicine box 14, the water outlet end of the liquid driving part 23 is communicated with the spray head 22 in the dust cover 21 by using a pipeline, the pipeline is a flexible pipeline, a drag chain is sleeved outside the pipeline in the dust cover 21, and the drag chain is fixed in the dust cover 21 by using bolts. The dust cover 21 can cover the workpiece inside, and then the passivation agent is concentrated in the dust cover 21 and cannot float freely in the housing 11 in the process of spraying the passivation agent by the spray head 22, so that the rest of mechanical structures in the housing 11 are not easy to contact with the passivation agent and oxidize.

As shown in fig. 2, in order to make the spraying of the passivation agent more uniform, two side walls of the inner cavity of the dust cover 21 perpendicular to the moving direction of the spray head 22 are provided with the abdication grooves 211, and the spray head 22 can move into the abdication grooves 211 respectively, so that when the spray head 22 sprays a workpiece, the spray head 22 starts spraying first and then passes over the workpiece, and then sprays the workpiece under the condition that the spray head 22 sprays normally. And the spray head 22 is positioned in the relief groove 211 after stopping, so that the passivation agent dropped on the spray head 22 falls into the relief groove 211.

As shown in fig. 3, since the passivation agent is sprayed toward the conveying rail 13 when the spray head 22 sprays the passivation agent toward the workpiece, a large amount of the passivation agent is caused to adhere to the conveying rail 13, thereby affecting the service life of the conveying rail 13. Therefore, the lower end of the dust cover 21 is detachably connected with a baffle plate 3, and the baffle plate 3 can seal the lower end opening of the dust cover 21. A communication hole 31 is formed in the lower end of the baffle 3, and the shape and size of the communication hole 31 are the same as those of the work piece, so that the work piece can be positioned in the communication hole 31. Therefore, when the workpiece is sprayed, the baffle plate 3 moves downwards to enable the workpiece to be located in the communication hole 31, and passivation agent can be sprayed onto the baffle plate 3 in the spraying process and cannot be directly sprayed onto the conveying track 13, so that the influence of the passivation agent on the conveying track 13 is reduced.

As shown in fig. 3, in order to make the connection between the dust cover 21 and the baffle 3 more convenient, the upper end of the baffle 3 is fixed with a plurality of extension blocks 32 along the edge thereof, and the end surface of the extension block 32 close to the dust cover 21 is penetrated with a plurality of inserting holes 321. The dust cover 21 is provided with a plurality of plug blocks 26 in a penetrating way, the plug blocks 26 are in threaded connection with the dust cover 21, one end of each plug block 26 is located outside the dust cover 21, the other end of each plug block 26 is located in the dust cover 21, and the plug blocks 26 can be arranged in the corresponding plug holes 321 in a penetrating way, so that positions of the baffle 3 and the dust cover 21 are limited.

As shown in fig. 3, in order to prevent the passivating agent from falling down onto the conveying rail 13 through the gap between the communicating hole and the workpiece, guide pieces 33 are adhered to the inner walls of the communicating hole, the guide pieces 33 are made of rubber, and adjacent guide pieces 33 are abutted against each other at positions close to each other. The guide piece 33 is inclined upward at one end away from the side wall of the communication hole, and can be abutted against the side wall of the work piece. The guide piece 33 is used for sealing the gap between the workpiece and the communication hole, so that the passivating agent is not easy to fall onto the conveying track 13 through the gap between the workpiece and the communication hole, and the influence of the passivating agent on the conveying track 13 is reduced.

As shown in fig. 3, after the spraying is completed, the passivation agent forms particles so as to fill the space of the dust cover 21, and after the dust cover 21 moves upward, the particles formed by the passivation agent diffuse into the housing 11, so that the dust cover 21 is also slidingly connected with the scraper 4 and a separation driving member 41 driving the scraper 4 to reciprocate, the scraper 4 is slidingly arranged in the dust cover 21 through a sliding rail, the sliding direction of the scraper 4 is kept parallel to the sliding direction of the spray head 22, the separation driving member 41 adopts a matching structure of a lead screw and a motor in the embodiment, and the lead screw of the separation driving member 41 penetrates through the scraper 4 and is in threaded connection with the scraper 4, thereby driving the scraper 4 to horizontally reciprocate. After the completion of one spraying, the squeegee 4 is horizontally moved once inside the dust cover 21, thereby driving the passivation agent particles floating inside the dust cover 21 toward one side and attaching to the squeegee 4, and reducing the amount of passivation agent particles entering the housing 11 during the subsequent upward movement of the dust cover 21.

Since the particles of the passivation agent are adhered to the scraping plate 4 in number and then are converged into small water drops to drop downwards, the two side walls of the baffle plate 3 perpendicular to the moving direction of the baffle plate are detachably connected with the adsorption sheets 42 by using the magic tape, the adsorption sheets 42 are made of cotton, the particles formed by the passivation agent are adsorbed by the adsorption sheets 42, so that the particles formed by the passivation agent are not easy to polymerize to generate the small water drops to drop, and the adsorption sheets 42 can be taken down for cleaning after absorbing the passivation agent.

As shown in fig. 3, a first absorption member 34 for absorbing the passivation agent is detachably connected to the upper end of the baffle 3 by using a velcro, the first absorption member 34 is cotton cloth, and the upper end surface of the baffle 3 is completely covered by the first absorption member 34. The dust cover 21 is provided with a second absorption part 27 for absorbing the passivation medicament in the vertical side wall and the abdication groove 211, the second absorption part 27 is also cotton cloth, a fixed block is sewn on the side wall of the second absorption part 27, which is close to the dust cover 21, and the end surface of the fixed block, which is close to the dust cover 21, is rotationally connected with a limiting block 28. The dust cover 21 is provided with a plurality of limiting holes 212 communicated with the inner cavity of the dust cover, the limiting block 28 can penetrate through the limiting holes 212, and the side wall, close to the second absorption part 27, of the limiting block 28 can be abutted against the outer wall of the dust cover 21. The second absorbing member 27 is connected to the inner wall of the dust cover 21 by the stopper 28, and the first absorbing member 34 and the second absorbing member 27 are used for absorbing when the nozzle 22 sprays passivation materials, so that the influence of the passivation agents on the dust cover 21 is reduced, and then the first absorbing member 34 and the second absorbing member 27 can be periodically removed and cleaned.

The implementation principle of the embodiment is as follows: the workpiece moves to the lower end of the dust cover 21 through the conveying track 13, the dust cover 21 descends to enable the workpiece to be located in the communicating hole, the spray head 22 is located in the yielding groove 211 to start spraying passivation medicament, then the spray head 22 sprays the passivation medicament from the upper portion of the workpiece, the scraping plate 4 horizontally moves once to scrape particles formed by the passivation medicament after spraying is finished, the dust cover 21 moves upwards and is separated from the workpiece, and the workpiece is continuously conveyed under the driving of the conveying track 13.

The embodiments of the present invention are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A vacuum spraying apparatus, characterized in that: including frame (1), cladding in outer housing (11) of frame (1), connect vacuum generator (12) on housing (11), set up delivery track (13) in housing (11) and set up coating mechanism (2) in housing (11), vacuum generator (12) and housing (11) inner chamber intercommunication, coating mechanism (2) include dust cover (21), slide set up a plurality of shower nozzles (22) in dust cover (21), connect in liquid drive piece (23) of shower nozzle (22), drive shower nozzle (22) horizontal reciprocating motion's horizontal drive piece (24) and drive dust cover (21) vertical drive piece (25), be provided with medical kit (14) that are used for holding passivation material on frame (1), medical kit (14) and liquid drive piece (23) intercommunication, dust cover (21) can be with the work piece cover locate in.

2. A vacuum spraying apparatus according to claim 1, characterized in that: two side walls of the inner cavity of the dust cover (21) perpendicular to the moving direction of the spray head (22) are provided with yielding grooves (211), and the spray head (22) can move into the yielding grooves (211).

3. A vacuum spraying apparatus according to claim 1, characterized in that: the anti-dust device is characterized in that a baffle (3) with an opening at the lower end of the dust cover (21) is fixed at the lower end of the inner wall of the dust cover (21), a communication hole (31) is formed in the baffle (3) in a penetrating mode, and the inner wall of the communication hole (31) can be abutted to the side wall of a workpiece.

4. A vacuum spraying apparatus according to claim 3, wherein: guide plates (33) are fixed on the inner walls of the communication holes (31), adjacent guide plates (33) are abutted to each other, one end, away from the communication holes (31), of each guide plate (33) is inclined upwards, and the upper ends of the guide plates (33) can be abutted to the side walls of a workpiece.

5. A vacuum spraying apparatus according to claim 1, characterized in that: the dust cover (21) is slidably provided with a scraping plate (4), the scraping plate (4) can push particles floating in the dust cover (21) towards one place, and a separation driving piece (41) for pushing the scraping plate (4) to reciprocate is further arranged in the dust cover (21).

6. A vacuum spraying apparatus according to claim 5, wherein: the two side walls of the scraper (4) perpendicular to the moving direction of the scraper are both fixedly provided with adsorption sheets (42), and the adsorption sheets (42) can adsorb passivation medicament particles.

7. A vacuum spraying apparatus according to claim 2, characterized in that: the upper end of the baffle plate (3) is fixedly provided with a first absorption part (34) for absorbing the passivation agent, and the inner wall of the dust cover (21) which is vertical and the inside of the yielding groove (211) are respectively provided with a second absorption part (27) for absorbing the passivation agent.

8. A vacuum spraying apparatus according to claim 7, wherein: the second absorbing part (27) is rotationally connected with a plurality of limiting blocks (28), a plurality of limiting holes (212) communicated with the inner cavity of the dust cover (21) are formed in the dust cover, the limiting holes (212) can penetrate through the limiting holes (212), and the side wall, close to the second absorbing part (27), of the limiting blocks (28) can be abutted to the outer wall of the dust cover (21).

9. A vacuum spraying apparatus according to claim 3, wherein: the dust cover is characterized in that the baffle (3) is detachably connected to the dust cover (21), a plurality of extension blocks (32) are fixed at the upper end of the baffle (3), a plurality of plug blocks (26) are slidably arranged on the dust cover (21), and the plug blocks (26) can be arranged in the extension blocks (32) in a penetrating mode.