Purging device facilitating printing

Abstract

The utility model belongs to the technical field of silicon solar cell screen printing, and particularly relates to a blowing device convenient for printing, which comprises a sponge brush fixed on the upper edge of a semi-finished product cell outlet on a printing machine table; the air outlet component is fixed on a conveying belt support arranged on the printing machine table, a conveying belt is arranged on the conveying belt support, and the semi-finished battery piece is located on the conveying belt, moves along with the conveying belt, sequentially passes through the position below the sponge brush and the air outlet component and is blown down through combination of the sponge brush and the air outlet component. The device is simple in structure, convenient to use and practical, and the problem influence of the dust particles and the like in the printing process can be solved in a targeted mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of silicon solar cell screen printing, in particular to a blowing device which is convenient for printing. Background Art

[0002] The solar cell screen printing process is costly throughout the entire process, especially for HJT solar cells. The use of pure silver paste further increases costs, as does the consumption of the stencil. While the lifespan of a typical stencil is estimated to be tens of thousands of years, stencil damage and even stencil failure are unavoidable during use. For example, dust particles falling onto semi-finished solar cells within the PVD chamber, or peeling and slag from aging equipment, can cause printing anomalies and even stencil failure. This not only results in loss of the stencil, but also loss of the paste. With silver paste prices still rising, cost reduction and efficiency gains are imperative. Furthermore, stencil failures can significantly impact normal production line operations.

[0003] Currently, relatively simple cleaning devices are widely used, such as using tape to stick a hard-bristle brush on the edge of the printing machine, or sticking a dust-free cloth on it. The hard-bristle brush may destroy the surface film structure when it comes into contact with the blue film, affecting the efficiency and yield of the finished battery cells; softer dust-free cloths are prone to deformation and cannot completely remove dust particles on the surface of semi-finished battery cells. Utility Model Content

[0004] The purpose of this utility model is to provide a purge device that is convenient for printing to solve the problems in the prior art. The specific technical solutions are as follows:

[0005] A blowing device convenient for printing comprises: a sponge brush fixed at the upper edge of the outlet of a semi-finished battery cell on a printing machine; an air outlet component fixed to a conveyor belt bracket provided on the printing machine, the conveyor belt bracket being provided with a conveyor belt, the semi-finished battery cell being located on the conveyor belt and moving with the conveyor belt, passing under the sponge brush and the air outlet component in sequence.

[0006] Furthermore, the sponge brush includes a brush body, which is fixed on the printing machine table, and a detachable brush head is provided at the front end of the brush body.

[0007] Furthermore, the front end of the brush head is provided with cross-arranged strip sponges.

[0008] Furthermore, the air outlet component includes a shell, a radiator and a blower are arranged in the shell, a control display screen is provided on the side of the shell, and the radiator and the blower are electrically connected to the control display screen.

[0009] Furthermore, an air outlet is provided on the side of the shell, and the exhaust port on the blower is connected to the air outlet.

[0010] Furthermore, the air outlet is 30 to 50 cm above the conveyor belt.

[0011] Furthermore, the air outlet adopts an outward expansion design, and the inclination angle of the air outlet is adjustable within 30° to 60°.

[0012] Furthermore, a sensor is provided in the housing, and the sensor is electrically connected to the control display screen.

[0013] Furthermore, two limit plates are provided in the brush body, both of which slide in the brush body, and the two limit plates are relatively clamped on the brush head. The limit plates are fixedly connected to the inner rod, and the inner rod is slidably connected to the outer tube, and the outer tube is fixed to the brush body, and the inner rod and the outer tube bracket are provided with springs.

[0014] Furthermore, a triangular pressure plate is slidably connected between the ends of the two limit plates, the triangular pressure plate is slidably connected to the brush body, a button is fixed to the upper end of the triangular pressure plate, the triangular pressure plate is rotatably connected to one end of the rotating rod, the other end of the rotating rod is rotatably connected to the push plate, and the push plate slides in the brush body.

[0015] The advantages of the present invention are:

[0016] 1. The semi-finished battery cells are placed on the conveyor belt for transportation. The semi-finished battery cells pass under the sponge brush, which sweeps away the dust particles on the semi-finished battery cells. The semi-finished battery cells continue to move forward on the conveyor belt. When passing under the air outlet component, the air outlet component further blows away the dust particles on the semi-finished battery cells. Through the combined blowing of the sponge brush and the air outlet component, dust particles and other impurities are removed to a greater extent. The device has a simple structure, is convenient and practical, and can solve the problem of dust particles and the like during the printing process in a targeted manner.

[0017] 2. The strip sponges are arranged crosswise and fixed at the front end of the brush head, which reduces the resistance to a certain extent. The sponge brush is neither soft nor hard compared to conventional brushes and dust-free cloths, and has a better effect.

[0018] 3. The sensor can sense semi-finished battery cells. When no semi-finished battery cells pass through the conveyor belt for a long time, the sensor will send a signal to the control display screen. After receiving the signal, the control display screen will control the blower and radiator to stop running, saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the air outlet component of the utility model;

[0021] Figure 3 This is a longitudinal section of the sponge brush structure of the utility model;

[0022] Figure 4 This is the cross section of the brush head structure of the present utility model;

[0023] Figure 5 This is a schematic diagram of the sponge brush structure of the utility model Figure 1 ;

[0024] Figure 6 This is a schematic diagram of the sponge brush structure of the utility model Figure 2 ;

[0025] Figure 7 This is a schematic diagram of the sponge brush structure of the utility model Figure 3 ;

[0026] Description of the marks in the figure:

[0027] Printing machine 1; semi-finished battery cell 2; sponge brush 3; conveyor belt 4; air outlet 5; control display 6; radiator 7; blower 8; sensor 9; housing 10; brush body 11; sponge 12; brush head 13; limit plate 14; inner rod 15; outer tube 16; spring 17; button 18; triangular pressure plate 19; rotating rod 20; push plate 21. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Example 1

[0031] like Figure 1-7As shown, a blowing device that is convenient for printing includes: a sponge brush 3, which is fixed to the upper edge of the outlet of the semi-finished battery cell 2 on the printing machine table 1; an air outlet component, which is fixed to a conveyor belt bracket set on the printing machine table 1, and a conveyor belt 4 is provided on the conveyor belt bracket. The semi-finished battery cell 2 is located on the conveyor belt 4 and moves with the conveyor belt 4, passing under the sponge brush 3 and the air outlet component in turn.

[0032] The working principle of the above technical solution is: the semi-finished battery cell 2 is placed on the conveyor belt 4 for transportation, and the semi-finished battery cell 2 passes under the sponge brush 3, and the sponge brush 3 sweeps away the dust particles on the semi-finished battery cell 2. The semi-finished battery cell 2 continues to move forward on the conveyor belt 4. When passing under the air outlet component, the air outlet component further blows away the dust particles on the semi-finished battery cell 2. Through the combined blowing of the sponge brush 3 and the air outlet component, dust particles and other impurities are removed to a greater extent. The device has a simple structure, is convenient and practical, and can solve the problems of dust particles and the like during the printing process in a targeted manner.

[0033] Example 2

[0034] like Figure 1-7 As shown, the sponge brush 3 includes a brush body 11, which is fixed on the printing machine 1, and a detachable brush head 13 is provided at the front end of the brush body 11;

[0035] The working principle of the above technical solution is: the brush body 11 and the brush head 13 are detachable, which facilitates the cleaning and replacement of the brush head 13.

[0036] Example 3

[0037] like Figure 1-7 As shown, the front end of the brush head 13 is provided with cross-arranged strip sponges 12;

[0038] The working principle of the above technical solution is: the strip sponges 12 are fixed at the front end of the brush head 13 in a cross-arranged manner, which reduces the resistance to a certain extent. The material of the sponge 12 is neither soft nor hard compared to conventional brushes and dust-free cloths, and the effect is better.

[0039] Example 4

[0040] like Figure 1-7 As shown, the air outlet component includes a housing 10, a radiator 7 and a blower 8 are provided in the housing 10, a control display screen 6 is provided on the side of the housing 10, and the radiator 7 and the blower 8 are electrically connected to the control display screen 6;

[0041] The side of the housing 10 is provided with an air outlet 5, and the exhaust port on the blower 8 is connected to the air outlet 5;

[0042] The air outlet 5 is 30 to 50 cm away from the conveyor belt 4;

[0043] The working principle of the above technical solution is: the control display screen 6 can control the start-up of the radiator 7 and the blower 8. The blower 8 generates sufficient wind power, which can effectively blow away the dust particles through the air outlet 5. The radiator 7 can perform heat dissipation when the device is running to ensure the long-term operation of the device. The air outlet 5 is 30 to 50 cm above the conveyor belt 4. This distance can blow away the dust particles to the greatest extent without blowing the semi-finished battery cell 2 off course.

[0044] Example 5

[0045] like Figure 1-7 As shown, the air outlet 5 adopts an outward expansion design to discharge air, and the inclination angle of the air outlet 5 is adjustable within 30° to 60°;

[0046] The working principle of the above technical solution is: the air outlet 5 adopts an outward expansion design for air outlet, and the inclination angle of the air outlet 5 is adjustable within 30° to 60°, ensuring that its air outlet area is large and uniform.

[0047] Example 6

[0048] like Figure 1-7 As shown, a sensor 9 is provided in the housing 10 , and the sensor 9 is electrically connected to the control display screen 6 ;

[0049] The working principle of the above technical solution is: the sensor 9 can sense the semi-finished battery cell 2. When no semi-finished battery cell 2 passes through the conveyor belt 4 for a long time, the sensor 9 will send a signal to the control display screen 6. After the control display screen 6 receives the signal, it controls the blower 8 and the radiator 7 to stop running, saving energy consumption.

[0050] Example 7

[0051] like Figure 1-7 As shown, two limit plates 14 are provided in the brush body 11, and the two limit plates 14 are slid in the brush body 11. The two limit plates 14 are relatively clamped on the brush head 13. The limit plates 14 are fixedly connected to the inner rod 15, and the inner rod 15 is slidably connected to the outer tube 16. The outer tube 16 is fixed to the brush body 11, and the inner rod 15 and the outer tube 16 bracket are provided with a spring 17;

[0052] A triangular pressing plate 19 is slidably connected between the ends of the two limiting plates 14. The triangular pressing plate 19 is slidably connected to the brush body 11. A button 18 is fixed to the upper end of the triangular pressing plate 19. The triangular pressing plate 19 is rotatably connected to one end of a rotating rod 20. The other end of the rotating rod 20 is rotatably connected to a push plate 21. The push plate 21 slides in the brush body 11.

[0053] The working principle of the above technical solution is: pressing the button 18 drives the triangular pressure plate 19 to move downward, and the lower end of the triangular pressure plate 19 squeezes the two limit plates 14 to separate at both ends, driving the two inner rods 15 to move to both ends and slide with the outer tube 16, driving the two springs 17 to be compressed, driving the two limit plates 14 to separate from the brush head 13, and the triangular pressure plate 19 moves downward while driving the rotating rod 20 to rotate, and the rotating rod 20 squeezes the push plate 21 to slide forward in the brush body 11 until the push plate 21 contacts the brush head 13, continue to press the button 18, drive the triangular pressure plate 19 to continue to move downward, and the push plate 21 pushes the brush head 13 and the sponge 12 out as a whole, thereby completing the separation of the brush body 11 and the sponge 12. The operation is convenient and quick. You only need to press the button 18 to complete the separation of the brush body 11 and the sponge 12, and the whole process does not require your hands to touch the sponge 12 or the brush head 13, avoiding dirtying your hands.

[0054] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A purging device for printing, characterized in that: include: A sponge brush (3) is fixed on the upper edge of the outlet of the semi-finished battery cell (2) on the printing machine table (1); The air outlet component is fixed on a conveyor belt bracket provided on a printing machine table (1), a conveyor belt (4) is provided on the conveyor belt bracket, and the semi-finished battery cell (2) is located on the conveyor belt (4) and moves along with the conveyor belt (4), passing through the sponge brush (3) and below the air outlet component in sequence.

2. A purging device for facilitating printing according to claim 1, characterized in that: The sponge brush (3) comprises a brush body (11), the brush body (11) is fixed on the printing machine platform (1), and a detachable brush head (13) is provided at the front end of the brush body (11).

3. A purging device for facilitating printing according to claim 2, characterized in that: The front end of the brush head (13) is provided with cross-arranged strip sponges (12).

4. A purging device for facilitating printing according to claim 1, characterized in that: The air outlet component comprises a housing (10), a radiator (7) and a blower (8) are arranged in the housing (10), a control display screen (6) is arranged on the side of the housing (10), and the radiator (7) and the blower (8) are both electrically connected to the control display screen (6).

5. A purging device for facilitating printing according to claim 4, characterized in that: An air outlet (5) is provided on the side of the housing (10), and an air outlet on the blower (8) is communicated with the air outlet (5).

6. A purging device for facilitating printing according to claim 5, characterized in that: The air outlet (5) is 30 to 50 cm away from the conveyor belt (4).

7. A purging device for facilitating printing according to claim 6, characterized in that: The air outlet (5) adopts an outward expansion design for air discharge, and the inclination angle of the air outlet (5) is adjustable within a range of 30° to 60°.

8. A purging device for facilitating printing according to claim 7, characterized in that: A sensor (9) is provided in the housing (10), and the sensor (9) is electrically connected to the control display screen (6).

Images