CN220031443U

CN220031443U - Organosilicon sealant drum printing equipment

Info

Publication number: CN220031443U
Application number: CN202321519440.9U
Authority: CN
Inventors: 高家伟
Original assignee: Suzhou Sanxi Intelligent Technology Co ltd
Current assignee: Suzhou Sanxi Intelligent Technology Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2023-11-17
Anticipated expiration: 2033-06-14

Abstract

The utility model discloses an organosilicon packaging agent roller printing device, which comprises a transmission unit, wherein the transmission unit is used for conveying photovoltaic glass; the positioning unit comprises a plurality of groups of transverse positioning components and a plurality of groups of longitudinal positioning components; the roller printing unit is arranged above the transmission unit, and a roller printing screen in the roller printing unit is arranged above the photovoltaic glass; and the scraper unit is arranged in the roller printing unit and is used for scraping and coating the organosilicon packaging agent on the roller printing screen onto the upper surface of the photovoltaic glass. In the printing process, the scraper is static, the printed photovoltaic glass and the screen plate move, and compared with the existing printing equipment, the scraper moves, and the printed photovoltaic glass and the screen plate are static, so that the printing efficiency is higher.

Description

Organosilicon sealant drum printing equipment

Technical Field

The utility model relates to the technical field of photovoltaic module production, in particular to an organosilicon packaging agent roller printing device.

Background

Currently, with the application of N-type TOPCon scale and mass production; in the traditional process, the material commonly used for producing and packaging the component is EVA adhesive film; compared with the traditional EVA adhesive film packaged component, the component adopting the organic silicon packaging agent can ensure long-term stability of the photovoltaic cell component in a severe environment, improve the durability and corrosion resistance of the solar cell component, and the light transmittance of the traditional EVA adhesive film packaged component is 91-92%, and the light transmittance of the organic silicon packaging agent is 98-99%.

The production modes commonly used for spraying the liquid organosilicon packaging agent are divided into two types: slit coating and screen printing; the working principle of slit spraying is that coating liquid is extruded and sprayed out along a gap of a coating die under certain pressure and certain flow rate to be transferred onto a substrate, and the spraying mode is not suitable for photovoltaic glass with holes; the working principle of screen printing is that a scraper moves on a screen to print a liquid organic silicon packaging agent on the photovoltaic glass, and the production mode only needs to plug the positions of the holes corresponding to the screen plate on the photovoltaic glass with holes.

However, the current production rhythm of the photovoltaic module is very fast, and the screen printing adopting the traditional mode can lead to the prolongation of the whole printing process time, so that the production efficiency of a production line is reduced, and the output efficiency of the photovoltaic module is affected.

Disclosure of Invention

The utility model aims at: in order to solve the problems, the utility model provides a roller printing device for an organic silicon packaging agent.

The utility model adopts the following technical scheme for realizing the purposes:

the device comprises a transmission unit, a control unit and a control unit, wherein the transmission unit is used for conveying photovoltaic glass;

the positioning unit comprises a plurality of groups of transverse positioning assemblies and a plurality of groups of longitudinal positioning assemblies, and is used for aligning the photovoltaic glass with the screen plate;

the roller printing unit is arranged above the transmission unit, and a roller printing screen in the roller printing unit is arranged above the photovoltaic glass;

and the scraper unit is arranged in the roller printing unit and is used for scraping and coating the organic silicon packaging agent on the roller printing screen onto the upper surface of the photovoltaic glass.

As a further description of the above technical solution, the transmission unit includes a supporting frame, on which a plurality of groups of synchronizing wheels are arranged in parallel and a synchronous belt is sleeved on the synchronizing wheels, and at least one of the synchronizing wheels is externally connected with a servo motor for driving the synchronizing wheels to rotate.

As a further description of the above technical solution, the positioning unit includes a plurality of symmetrically arranged lateral positioning assemblies, each lateral positioning assembly includes a lateral positioning main body, the lateral positioning main body is arranged above the linear slide rail, and one side of the lateral positioning main body is connected with a positioning cylinder.

As a further description of the above technical solution, the longitudinal positioning component has the same structure as the transverse positioning component, and the movement direction of the longitudinal positioning component is perpendicular to the movement direction of the transverse positioning component.

As a further description of the above technical solution, the lateral positioning component and the longitudinal positioning component are both provided with positioning rollers at the contact points with the photovoltaic glass;

the lower ends of the transverse positioning assembly and the longitudinal positioning assembly are connected with lifting cylinders. As a further description of the above technical solution, the drum printing unit includes the drum printing screen with a thickness of 0.1mm-1mm, the drum printing unit includes printing frames at two ends of the drum printing screen, and a driving motor is disposed on the printing frames and is linked with a driving roller disposed in the drum printing screen through a belt.

As a further description of the above technical solution, the drum printing unit further includes a tensioning roller disposed at an edge of the drum printing screen, and a tensioning cylinder is disposed below the tensioning roller.

As a further description of the above technical solution, the doctor blade unit includes a doctor blade disposed in the drum printing screen, a doctor blade lifting cylinder is disposed at a knife rest above the doctor blade, and a piston rod of the doctor blade lifting cylinder is fixedly connected with the doctor blade.

As a further description of the above technical solution, the doctor blade is disposed near the upper surface inside the drum printing screen, and the length of the doctor blade and the length of the drum printing screen are both adapted to the photovoltaic glass.

As a further description of the above technical solution, a plurality of openings are formed at edges of two sides of the drum printing screen, the openings are meshed with driven gears coaxially arranged on the driving roller, and the driven gears are used for driving the drum printing screen to move.

The beneficial effects of the utility model are as follows:

1. according to the utility model, in the printing process, the roller printing screen plate and the photovoltaic glass are in a synchronous motion state, the scraper is in a static state, and the photovoltaic glass is pressed down in the forward transmission process along the advancing direction of the production line, so that the printing of the liquid organic silicon packaging agent is completed, the working time is greatly saved, the printing speed is faster compared with the existing flat-plate printing mode, and the occupied area of the whole printing equipment is smaller.

2. When the drum printing screen is needed to be replaced, the screen can be pulled out only by loosening the tension roller connected with the drum screen through the air cylinder, and the drum printing screen is convenient and quick, has low manufacturing cost and can be widely popularized and used.

3. According to the utility model, the nylon gear is matched with the screen openings, so that more stable driving force and the deviation prevention effect can be achieved, meanwhile, as the roller printing screen is only a stainless steel screen with a certain thickness, compared with the existing printing screen which is a stainless steel screen plus an aluminum frame, the roller printing screen occupies a smaller area, is light in weight and is convenient to replace.

In order to more clearly illustrate the structural features and functions of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and the embodiments.

Drawings

FIG. 1 is a perspective view of a printing apparatus of the present utility model;

FIG. 2 is a front view of the printing apparatus of the present utility model;

FIG. 3 is a schematic diagram of the structure of the transmission unit of the present utility model;

FIG. 4 is a top view of the transfer unit of the present utility model;

fig. 5 is a front view of the transfer unit of the present utility model;

FIG. 6 is a perspective view of the roll printing unit of the present utility model;

FIG. 7 is a perspective view of another embodiment of the roll printing unit of the present utility model;

FIG. 8 is a schematic view of the cylinder printing unit of the present utility model mated with a doctor blade unit;

fig. 9 is a flow chart of a method of use of the present utility model.

Reference numerals: 1. a transmission unit; 101. a support frame; 102. a synchronizing wheel; 103. a synchronous belt; 104. a servo motor; 2. photovoltaic glass; 3. a positioning unit; 31. a lateral positioning assembly; 311. a transverse positioning body; 312. a linear slide rail; 313. positioning a cylinder; 32. a longitudinal positioning assembly; 33. positioning rollers; 34. a lifting cylinder; 4. a drum printing unit; 41. a drum printing screen; 42. a printing frame; 43. a driving motor; 44. a driving roller; 45. tensioning rollers; 46. a tensioning cylinder; 5. a scraper unit; 51. a scraper; 52. a tool holder; 53. a scraper lifting cylinder; 6. and (5) opening holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in fig. 1-7, in one embodiment, a silicone encapsulant roll printing device includes a conveying unit 1, where the conveying unit 1 is used to convey a photovoltaic glass 2, and the conveying unit 1 is similar to a conveyor belt in function, that is, conveys the photovoltaic glass 2 to be printed to a printing area;

the periphery of the photovoltaic glass 2 is provided with a positioning unit 3, the positioning unit 3 comprises a plurality of groups of transverse positioning assemblies 31 and a plurality of groups of longitudinal positioning assemblies 32, the positioning unit 3 is used for positioning the photovoltaic glass 2, and after the photovoltaic glass 2 is conveyed to the lower part of a printing area, the photovoltaic glass 2 and the drum printing screen 41 are accurately aligned through the cooperation of the transverse positioning assemblies 31 and the longitudinal positioning assemblies 32;

the drum printing unit 4, the drum printing unit 4 is arranged above the transmission unit 1, the drum printing screen 41 in the drum printing unit 4 is arranged above the photovoltaic glass 2, and before printing is started, the drum printing screen 41 is rotated in advance, so that the initial position of the screen and the initial position of the photovoltaic glass 2 are accurately aligned, and are mutually attached or are arranged in parallel with a distance of a few millimeters to a few centimeters, and then the scraper is pressed down to start the printing process. In the printing process, the roller printing screen 41 in the roller printing unit rolls on the photovoltaic glass 2, the scraper unit 5 arranged in the roller printing unit presses the roller printing screen 41 to the photovoltaic glass 2 and then keeps static, and the static scraper unit 5 scrapes the liquid organic silicon packaging agent on the roller printing screen 41 onto the upper surface of the photovoltaic glass 2 along with synchronous forward movement of the roller printing screen 41 and the photovoltaic glass 2 under the scraper unit 5. In addition, as the scraper is static in the printing process, compared with the scraper of the existing printing equipment, the scraper needs to move a longer distance in the printing process, so that the new photovoltaic glass 2 cannot enter the printing station in the printing process, and the superposition of action time is not in accordance with the process time requirement of online production; according to the printing scheme, the scraper is static and moves forward while the photovoltaic glass 2 is printed, so that new photovoltaic glass 2 can synchronously enter a printing station, the process time of online production is saved, and specific process steps can be referred to as fig. 8.

Referring to fig. 3, describing the transmission unit 1 of the present utility model, the transmission unit 1 includes a supporting frame 101, a plurality of groups of synchronizing wheels 102 arranged in parallel and a synchronous belt 103 sleeved on the synchronizing wheels 102 are disposed on the supporting frame 101, a servo motor 104 for driving at least one synchronizing wheel 102 to rotate is connected to the outside of the synchronizing wheel 102, and the synchronizing wheel 102 can be rotated under the driving of the servo motor, so that the synchronous belt 103 drives the photovoltaic glass 2 to enter a printing station.

Referring to fig. 4-5, describing the positioning unit 3, the positioning unit 3 includes a plurality of symmetrically disposed lateral positioning assemblies 31, the lateral positioning assemblies 31 include a lateral positioning main body 311, the lateral positioning main body 311 is disposed above a linear sliding rail 312, one side of the lateral positioning main body 311 is connected with a positioning cylinder 313, the longitudinal positioning assembly 32 has the same structure as the lateral positioning assembly 31, the movement direction of the longitudinal positioning assembly 32 is perpendicular to the movement direction of the lateral positioning assembly 31, and the photovoltaic glass 2 can be adjusted to a correct position by adjusting and positioning the lateral positioning assembly 31 and the longitudinal positioning assembly 32, so that the accurate printing of the barrel printing unit 4 is more convenient. Still further, in some embodiments, the positioning rollers 33 are disposed at the contact positions of the lateral positioning component 31 and the longitudinal positioning component 32 with the photovoltaic glass 2, and the contact between the positioning unit 3 and the photovoltaic glass 2 is changed from sliding friction to rolling friction by the positioning rollers 33, so as to reduce damage to the photovoltaic glass 2. Further, the lower ends of the transverse positioning assembly 31 and the longitudinal positioning assembly 32 are respectively connected with a lifting cylinder 34, so that the positions of the positioning rollers 33 can be adjusted to meet different height requirements, and the adaptability is higher.

Referring to fig. 6-7, describing the drum printing unit 4, the drum printing unit 4 includes a drum printing screen 41 with a thickness of 0.1mm-1.0mm, preferably, the thickness of the drum printing screen 41 may be 0.3mm, the drum printing unit 4 includes printing frames 42 located at two ends of the drum printing screen 41, a driving motor 43 is disposed on the printing frames 42, the driving motor 43 is linked with a driving roller 44 disposed in the drum printing screen 41 through a belt, the driving roller 44 is driven to rotate by the driving motor 43, so as to drive the drum printing plate 41 to move, so that the silicone encapsulant therein is gradually printed on the underlying photovoltaic glass 2, and for the feeding device of the silicone encapsulant, as a mature prior art, such as a glue feeding pump, a mixing tube, a feeding tube and the like, is not an important point of the present utility model.

Still further, the drum printing unit 4 further includes a tensioning roller 45 disposed at the edge of the drum printing screen 41, a tensioning cylinder 46 is disposed below the tensioning roller 45, one tensioning roller 45 and the other two driving rollers 44 make the drum printing screen 41 be tensioned to form a transverse triangular platform structure, when the drum printing screen 41 needs to be replaced, the tensioning roller 45 is loosened by the cylinder, the drum printing screen 41 is drawn out, and the drum printing screen 41 is convenient and fast, has low cost and can be widely popularized and used. In another embodiment, the shape of the whole drum printing unit 4 can also refer to fig. 7, and the whole drum printing unit is of a three-dimensional rectangular structure. In other possible examples, the roll printing unit 4 may be cylindrical, etc., and may be configured according to actual needs. Further, a plurality of holes 6 are formed in the edges of two sides of the drum printing screen 41, the holes 6 are meshed with driven gears which are coaxially arranged with the driving rollers 44 and are not shown in the drawing, the driven gears are used for driving the drum printing screen 41 to move, the driven gears are nylon gears, the nylon gears are matched with the holes 6, more stable driving force can be achieved, the deviation can be prevented, meanwhile, the drum printing screen 41 is a stainless steel screen with a certain thickness, compared with the existing printing screen which is a stainless steel screen plus an aluminum frame, the occupied area is smaller, the weight is light, and replacement is facilitated.

The thickness, the size of the openings, the number and arrangement of the openings of the roll printing screen 41 are determined according to the size of the photovoltaic glass, the positions of the openings on the photovoltaic glass, the amount of the bulk silicone encapsulant to be printed, and the like.

Referring to fig. 7, the description will be given of the doctor unit 5, where the doctor unit 5 includes a doctor 51 disposed in the drum printing screen 41, a doctor lifting cylinder 53 is disposed at a knife rest 52 above the doctor 51, a piston rod of the doctor lifting cylinder 53 is fixedly connected with the doctor 51, the doctor 51 is disposed at an upper surface near the inside of the drum printing screen 41, and the length of the doctor 51 and the length of the drum printing screen 41 are determined according to the size of the photovoltaic glass, and the doctor 51 prints the silicone encapsulant of the drum printing screen 41 below on the photovoltaic glass 2 below.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The silicone encapsulant drum printing device is characterized by comprising a transmission unit (1), wherein the transmission unit (1) is used for conveying photovoltaic glass (2);

the positioning unit (3), the positioning unit (3) comprises a plurality of groups of transverse positioning components (31) and a plurality of groups of longitudinal positioning components (32), and the positioning unit (3) is used for aligning the photovoltaic glass (2) with the screen plate (41);

a drum printing unit (4), wherein the drum printing unit (4) is arranged above the transmission unit (1), and a drum printing screen (41) in the drum printing unit (4) is arranged above the photovoltaic glass (2);

the scraper unit (5), scraper unit (5) set up in the inside of drum printing unit (4), scraper unit (5) are used for the knife coating organosilicon sealant on drum printing screen (41) to photovoltaic glass (2)'s upper surface.

2. The silicone encapsulant barrel printing device according to claim 1, wherein the transmission unit (1) comprises a supporting frame (101), a plurality of groups of synchronizing wheels (102) which are arranged in parallel and a synchronous belt (103) sleeved on the synchronizing wheels (102) are arranged on the supporting frame (101), and a servo motor (104) for driving the synchronizing wheels (102) to rotate is connected to the outside of at least one synchronizing wheel (102).

3. The silicone encapsulant barrel printing device according to claim 1, wherein the positioning unit (3) comprises a plurality of symmetrically arranged lateral positioning assemblies (31), the lateral positioning assemblies (31) comprise lateral positioning main bodies (311), the lateral positioning main bodies (311) are arranged above the linear sliding rail (312), and one side of the lateral positioning main bodies (311) is connected with a positioning cylinder (313).

4. The silicone encapsulant drum printing device according to claim 1, wherein the longitudinal positioning assembly (32) is of the same structure as the lateral positioning assembly (31), the direction of movement of the longitudinal positioning assembly (32) being perpendicular to the direction of movement of the lateral positioning assembly (31).

5. The silicone encapsulant drum printing device according to claim 1, characterized in that the lateral positioning assembly (31) and the longitudinal positioning assembly (32) are each provided with a positioning roller (33) at the point of contact with the photovoltaic glass (2);

the lower ends of the transverse positioning assembly (31) and the longitudinal positioning assembly (32) are connected with lifting cylinders (34).

6. The silicone encapsulant roll printing device according to claim 1, wherein the roll printing unit (4) comprises the roll printing screen (41) with the thickness of 0.1mm-1.0mm, the roll printing unit (4) comprises printing frames (42) at two ends of the roll printing screen (41), a driving motor (43) is arranged on the printing frames (42), and the driving motor (43) is linked with a driving roller (44) arranged in the roll printing screen (41) through a belt.

7. The silicone encapsulant roll printing device according to claim 1, wherein the roll printing unit (4) further comprises a tensioning roller (45) arranged at the edge of the roll printing screen (41), and a tensioning cylinder (46) is arranged below the tensioning roller (45).

8. The silicone encapsulant roll printing device according to claim 1, wherein the doctor blade unit (5) comprises a doctor blade (51) arranged in the roll printing screen (41), a doctor blade lifting cylinder (53) is arranged at a knife rest (52) above the doctor blade (51), and a piston rod of the doctor blade lifting cylinder (53) is fixedly connected with the doctor blade (51).

9. The silicone encapsulant roll printing device according to claim 8, wherein the doctor blade (51) is arranged near the upper surface inside the roll printing screen (41), and the length of the doctor blade (51) and the length of the roll printing screen (41) are adapted to the photovoltaic glass (2).

10. The silicone encapsulant roll printing device according to claim 6, wherein a plurality of openings (6) are formed at both side edges of the roll printing screen (41), the openings (6) are meshed with driven gears coaxially arranged on the driving rollers (44), and the driven gears are used for driving the roll printing screen (41) to move.