Conveyor line for main-grid-free battery pieces printed with glue

Abstract

The utility model relates to a glue-printed main-grid-free battery piece conveying line which is used for transferring glue-printed main-grid-free battery pieces and comprises a main frame, a conveying device and an air suction device, and the conveying device and the air suction device are both installed on the main frame. The conveying device comprises a conveying belt and a driving part for driving the conveying belt to operate, a first sinking groove is formed in the end face of one side, facing the main-grid-free battery piece, of the conveying belt, and the first sinking groove directly faces a glue point position on the main-grid-free battery piece; a plurality of through holes are further formed in the conveying belt; the air suction device is provided with a plurality of air suction ports; when the air suction device is started and the air suction port is communicated with the through hole, negative pressure is generated in the through hole, so that the main-grid-free battery piece is adsorbed to be attached to the end face of the conveying belt, and the main-grid-free battery piece conveying device has the advantages that the conveying belt is prevented from being glued, and the yield is increased.

Description

Technical Field

[0001] This utility model relates to the technical field of battery cell transfer equipment, and in particular to a gridless battery cell transfer line after printing. Background Technology

[0002] The production process of solar cells typically includes processes such as welding and adhesive printing. Adhesive printing mainly involves printing UV adhesive dots on the main busbars on both sides of the solar cell, and fixing the solder ribbon and the solar cell by curing the UV adhesive dots.

[0003] To facilitate the transfer of solar cells between welding, printing, and subsequent processes, a conveyor structure is typically used. Existing conveyor mechanisms usually include a flat belt that carries and moves the solar cells. The drive unit of the transmission mechanism rotates the flat belt, thereby moving the solar cells.

[0004] However, after the adhesive is applied, there are adhesive dots on the solar cells. When using a flat conveyor belt, adhesive may stick to the surface of the belt, which may even affect the subsequent transport of other solar cells.

[0005] Furthermore, as the conveyor belt speed increases, the flat belt is prone to slippage and misalignment, which can cause friction between the solar cells and the belt, leading to cell displacement and even wear of the adhesive dots on the solar cells, thus affecting the yield rate of the solar cells. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a gridless cell conveying line after printing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A conveyor line for transferring grid-less solar cells after adhesive printing is provided. The line includes a main frame, a conveying device, and a suction device, both mounted on the main frame. The conveying device includes a conveyor belt and a drive unit for driving the conveyor belt. A first groove is provided on one end face of the conveyor belt facing the grid-less solar cell, directly opposite the adhesive dots on the cell. The conveyor belt also has several through holes. The suction device has several suction ports. When the suction device is activated and the suction ports are in communication with the through holes, a negative pressure is generated within the through holes to attract the grid-less solar cell to the end face of the conveyor belt.

[0009] Preferably, the through hole and the adhesive dot are misaligned.

[0010] Preferably, the conveyor belt has a second groove on the side away from the gridless battery cell; the through hole communicates with the second groove, and the main frame has a first protrusion that is slidably connected to the second groove, with the wall of the first protrusion fitting against the wall of the second groove.

[0011] Preferably, the main frame includes two first beams arranged opposite each other, and a plurality of second beams connecting the two first beams; each first beam is provided with a third groove for mounting the conveyor belt, and the first protrusion is located in the third groove.

[0012] Preferably, the air intake device includes a first air intake channel, a second air intake channel, and a third air intake channel; the first air intake channel is disposed on the first beam and extends along the conveying direction of the gridless solar cell, and the first air intake channel is connected to the air intake located on the same first beam; the second air intake channel and the third air intake channel are both located on the second beam, and the two ends of the second air intake channel are respectively connected to the two first air intake channels, and the third air intake channel connects the second air intake channel and the air intake device.

[0013] Preferably, the drive unit includes a drive shaft, a first pulley, and a second pulley; the first pulley and the second pulley are arranged in pairs and correspond one-to-one with the transmission belt; a single transmission belt is wound around one of the pairs of first pulleys and the second pulley.

[0014] Preferably, the second pulley is connected to the main frame via a tensioning structure; the tensioning structure includes a fixed block, an adjusting block, and an adjusting screw; the fixed block is fixed to the main frame and threadedly connected to the adjusting screw; one end of the adjusting screw is rotatably connected to the adjusting block, and the sliding of the adjusting block is adjusted by rotation; the second pulley is rotatably mounted on the adjusting block.

[0015] Preferably, the adjusting block is provided with a first straight slot, and the main frame is provided with a second straight slot; the first straight slot and the second straight slot are arranged opposite to each other, and when the adjusting block is adjusted to a preset position, the fastener passes through the first straight slot and the second straight slot to fix the adjusting block and the main frame.

[0016] Preferably, it also includes a battery cell backlight device; the battery cell backlight device includes an acrylic plate and a second protrusion disposed on the acrylic plate; the acrylic plate is provided with a fourth air intake channel, one end of the fourth air intake channel is located on the second protrusion, and the other end is connected to the air intake device through an air pipe connector.

[0017] Preferably, the wall surface of the second protrusion is in contact with the wall surface of the second groove; the end of the fourth air intake channel on the second protrusion is offset from the adhesive dot.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This utility model provides a conveyor line for gridless solar cells after adhesive printing. By incorporating through holes in the conveyor belt and a suction device, the suction device, when activated and connected to the through hole, generates negative pressure within the through hole. This pressure draws the gridless solar cells, after adhesive printing, to the end face of the conveyor belt, preventing displacement of the cells relative to the belt and thus avoiding friction between the cells and the belt, preventing wear of the adhesive dots on the cells, and improving yield. Furthermore, the first groove prevents adhesive from adhering to the conveyor belt 22 and also prevents mutual compression between the conveyor belt and the adhesive dots on the gridless solar cells when they are drawn in through the through hole, further increasing yield. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the transmission line provided by this utility model.

[0022] Figure 2 for Figure 1 An enlarged view of position A in the middle.

[0023] Figure 3 for Figure 1 A cross-sectional view of the intake device location.

[0024] Figure 4 for Figure 3 An enlarged view of position B in the middle.

[0025] Figure 5 for Figure 1 A cross-sectional view after one of the conveyor belts was removed.

[0026] Figure 6 for Figure 5 An enlarged diagram of position C in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Gridless solar cell; 200. Adhesive point; 1. Main frame; 10. First protrusion; 11. First beam; 12. Second beam; 13. Third groove; 2. Transmission device; 21. Transmission belt; 210. First sink; 211. Through hole; 212. Second groove; 22. Drive unit; 220. Drive shaft; 221. First pulley; 222. Second pulley; 3. Air intake device; 30. Air intake port; 31. First air intake channel; 32. Second air intake channel; 33. Third air intake channel; 4. Tensioning structure; 41. Fixing block; 42. Adjusting block; 43. Adjusting screw; 5. First straight slot; 6. Second straight slot; 7. Solar cell backlight device; 71. Acrylic sheet; 72. Second protrusion; 73. Fourth air intake channel; 74. Air pipe connector. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] 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 the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of 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.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] See Figures 1 to 6This utility model provides a conveyor line for transferring gridless solar cells 100 after adhesive printing. The conveyor line includes a main frame 1, a transmission device 2, and a suction device 3, both mounted on the main frame 1. The transmission device 2 includes a transmission belt 21 and a drive unit 22 for driving the transmission belt 21. A first groove 210 is provided on the end face of the transmission belt 21 facing the gridless solar cell 100, directly opposite the adhesive dots 200 on the gridless solar cell 100. The transmission belt 21 also has several through holes 211. The suction device 3 has several suction ports 30. When the suction device 3 is activated and the suction ports 30 are in communication with the through holes 211, a negative pressure is generated within the through holes 211 to attract the gridless solar cell 100 to the end face of the transmission belt 21.

[0033] Through the above solution, a through hole 211 is provided on the conveyor belt 21, and the suction device 3 works in conjunction with it. When the suction device 3 is activated and the suction port 30 is in communication with the through hole 211, a negative pressure is generated inside the through hole 211. This allows the printed gridless solar cell 100 to be adsorbed onto the end face of the conveyor belt 21, preventing the gridless solar cell 100 from shifting relative to the conveyor belt 21. This avoids friction between the solar cell and the flat belt, prevents wear of the adhesive dots on the solar cell, and improves the yield rate. In addition, the first groove prevents adhesive from sticking to the conveyor belt 21. It also prevents mutual compression between the conveyor belt 21 and the adhesive dots 200 on the gridless solar cell 100 when the gridless solar cell 100 is adsorbed through the through hole 211, further increasing the yield rate.

[0034] To avoid the negative pressure generated in the through hole 211 affecting the glue spot 200, the through hole 211 and the glue spot 200 are offset.

[0035] See Figure 3 and Figure 4 To prevent air leakage in the area between the through hole 211 and the air inlet 30, and thus increase the adsorption effect, the conveyor belt 21 is provided with a second groove 212 on the side away from the gridless solar cell 100. The through hole 211 is connected to the second groove 212. The main frame 1 is provided with a first protrusion 10 that is slidably connected to the second groove 212. The wall surface of the first protrusion 10 is in contact with the wall surface of the second groove 212, thereby making the area between the through hole 211 and the air inlet 30 relatively closed, so that the negative pressure generated by the through hole 211 is greater, and the adsorption effect on the gridless solar cell 100 is better.

[0036] Furthermore, the main frame 1 includes two first beams 11 arranged opposite to each other, and several second beams 12 connecting the two first beams 11; each first beam 11 is provided with a third groove 13 for installing the conveyor belt 21, and the first protrusion 10 is located in the third groove 13.

[0037] It is understood that both first beams 11 are provided with third grooves 13 for mounting the conveyor belt 21, thereby increasing the contact area between the gridless solar cell 100 and the conveyor belt 21, making the gridless solar cell 100 more evenly stressed and more stably placed. To ensure transmission efficiency, the transmission length of the conveyor belt 21 is usually relatively long, resulting in a larger span for the first beams 11. In this design, a second beam 12 connects the two first beams 11, effectively increasing the stability of the first beams 11.

[0038] See Figure 3 and Figure 4 The air intake device 3 includes a first air intake channel 31, a second air intake channel 32, and a third air intake channel 33. The first air intake channel 31 is disposed on the first beam 11 and extends along the conveying direction of the gridless solar cell 100. The first air intake channel 31 is connected to the air intake port 30 located on the same first beam 11. The second air intake channel 32 and the third air intake channel 33 are both located on the second beam 12, and the two ends of the second air intake channel 32 are respectively connected to the two first air intake channels 31. The third air intake channel 33 connects the second air intake channel 32 and the air intake device. It can be seen that when the air intake device is turned on, the airflow direction in the air intake device 3 is: air intake port 30, first air intake channel 31, second air intake channel 32, third air intake channel 33, and air intake device (see...). Figure 4 The middle arrow indicates the direction.

[0039] See Figures 1 to 6 The drive unit 22 includes a drive shaft 220, a first pulley 221 and a second pulley 222; the first pulley 221 and the second pulley 222 are arranged in pairs and correspond one-to-one with the transmission belt 21; a single transmission belt 21 is wound around one of the pairs of first pulleys 221 and second pulleys 222.

[0040] It is known that when conveying the gridless solar cell 100, an external power structure (such as a power system consisting of a motor, a reducer, and a transmission gear set) drives the drive shaft 220 to rotate. During the rotation of the drive shaft 220, the two first pulleys 221 mounted on the drive shaft 220 rotate synchronously. Through the transmission belt 21, the first pulleys 221 and their paired second pulleys 222 rotate synchronously, thereby realizing the conveying of the gridless solar cell 100.

[0041] To achieve adjustable tension of the conveyor belt 21, the second pulley 222 is connected to the main frame 1 via a tensioning structure 4. The tensioning structure 4 includes a fixed block 41, an adjusting block 42, and an adjusting screw 43. The fixed block 41 is fixed to the main frame 1 and threadedly connected to the adjusting screw 43. One end of the adjusting screw 43 is rotatably connected to the adjusting block 42, and its rotation adjusts the sliding of the adjusting block 42. The second pulley 222 is rotatably mounted on the adjusting block 42. It can be seen that the adjusting screw 43 is positioned from the first pulley 221 towards the second pulley 222. During adjustment, rotating the adjusting screw 43 adjusts the distance between the fixed block 41 and the adjusting block 42, further adjusting the distance between the second pulley 222 and the first pulley 221, thus achieving adjustment of the conveyor belt 21.

[0042] Furthermore, the adjusting block 42 is provided with a first straight groove 5, and the main frame 1 is provided with a second straight groove 6. The first straight groove 5 and the second straight groove 6 are arranged opposite to each other. When the adjusting block 42 is adjusted to the preset position, the fastener passes through the first straight groove 5 and the second straight groove 6 to fix the adjusting block 42 and the main frame 1. The fastener can be a bolt and nut. The length of the first straight groove 5 and the second straight groove 6 can be set according to actual needs, so that when the distance between the adjusting block 42 and the fixed block 41 is adjusted within a certain adjustment range, the fastener can achieve a stable connection between the adjusting block 42 and the main frame 1, so as to ensure the stable installation of the adjusting block 42 and the second pulley 222.

[0043] See Figure 5 and Figure 6 It also includes a battery cell backlight device 7; the battery cell backlight device 7 includes an acrylic plate 71 and a second protrusion 72 disposed on the acrylic plate 71; the acrylic plate 71 is provided with a fourth air intake channel 73, one end of the fourth air intake channel 73 is located on the second protrusion 72, and the other end is connected to the air intake device through an air pipe connector 74.

[0044] Furthermore, the wall of the second protrusion 72 is in contact with the wall of the second groove 212; the end of the fourth suction channel 73 on the second protrusion 72 is offset from the adhesive dot 200.

[0045] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A kind of post-glueing main grid-free cell piece conveying line, for transporting post-glueing main grid-free cell piece (100), it is characterized in that, The main frame (1), the transmission device (2) and the air suction device (3) are provided, and the transmission device (2) and the air suction device (3) are installed on the main frame (1); The transmission device (2) comprises a transmission belt (21) and a driving part (22) for driving the transmission belt (21) to operate, and the transmission belt (21) is provided with a first groove (210) on the side end face facing the main grid-free battery piece (100), and the first groove (210) is opposite to the glue point position (200) on the main grid-free battery piece (100); The transmission belt (21) is further provided with a plurality of through holes (211); The air suction device (3) has a plurality of air suction ports (30); when the air suction device (3) is started and the air suction ports (30) are in communication with the through holes (211), a negative pressure is generated in the through holes (211) to adsorb the main grid-free battery piece (100) to the end face of the transmission belt (21).

2. The conveying line for the cell without main grid after the glue printing according to claim 1, characterized in that, The through holes (211) and the glue point positions (200) are arranged in a staggered manner.

3. The conveying line for the cell without main grid after the glue printing according to claim 1, characterized in that, The transmission belt (21) is provided with a second groove (212) on the side away from the main grid-free battery piece (100); The through holes (211) and the second grooves (212) are in communication, the main frame (1) is provided with a first protrusion (10) in sliding fit connection with the second grooves (212), and the wall surface of the first protrusion (10) is in fit with the wall surface of the second grooves (212).

4. The cell conveying line according to claim 3, wherein the cell conveying line is a cell conveying line for a cell without a main grid after the paste printing. The main frame (1) comprises two oppositely arranged first beam bodies (11) and a plurality of second beam bodies (12) connecting the two first beam bodies (11); Each first beam body (11) is provided with a third groove (13) for mounting the transmission belt (21), and the first protrusion (10) is located in the third groove (13).

5. The cell conveying line according to claim 4, wherein the cell conveying line is a cell conveying line for a cell without a main grid after the paste printing. The air suction device (3) comprises a first air suction channel (31), a second air suction channel (32) and a third air suction channel (33); The first air suction channel (31) is arranged on the first beam body (11) and extends along the conveying direction of the main grid-free battery piece (100), and the first air suction channel (31) is in communication with the air suction port (30) located on the same first beam body (11); The second air suction channel (32) and the third air suction channel (33) are located on the second beam body (12), and the two ends of the second air suction channel (32) are connected with the two first air suction channels (31) respectively, and the third air suction channel (33) connects the second air suction channel (32) and the air suction equipment.

6. The cell conveying line according to claim 1, wherein The driving part (22) comprises a driving shaft (220), a first pulley (221) and a second pulley (222); The first pulley (221) and the second pulley (222) are arranged in pairs and correspond to the transmission belt (21) one by one; A single transmission belt (21) is arranged on one pair of first pulleys (221) and second pulleys (222).

7. The cell conveying line according to claim 6, wherein the cell conveying line is a cell conveying line for a cell without a main grid after the paste printing. The second pulley (222) is connected with the main frame (1) through a tensioning structure (4). The tensioning structure (4) comprises a fixing block (41), an adjusting block (42) and an adjusting screw rod (43); The fixing block (41) is fixed on the main frame (1) and is in threaded connection with the adjusting screw rod (43); One end of the adjusting screw rod (43) is in rotational connection with the adjusting block (42) and the sliding of the adjusting block (42) is adjusted by rotation; The second pulley (222) is rotatably installed on the adjusting block (42).

8. The conveying line of claim 7, wherein the conveying line is a conveying line for a cell without main grid after the cell is glued. A first straight slot (5) is arranged on the adjusting block (42) and a second straight slot (6) is arranged on the main frame (1); The first straight slot (5) and the second straight slot (6) are oppositely arranged, when the adjusting block (42) is adjusted to a preset position, a fastener penetrates through the first straight slot (5) and the second straight slot (6) to fixedly connect the adjusting block (42) and the main frame (1).

9. The conveying line of claim 3, wherein the conveying line is a conveying line for a cell without main grid after the cell is glued. Further comprising a battery piece backlight device (7); The battery piece backlight device (7) comprises an acrylic plate (71) and a second protrusion (72) arranged on the acrylic plate (71); A fourth air suction passage (73) is arranged on the acrylic plate (71), one end of the fourth air suction passage (73) is located on the second protrusion (72) and the other end is connected to an air suction equipment through an air tube joint (74).

10. The cell conveying line according to claim 9, wherein the cell conveying line is a cell conveying line for a cell without a main grid after the paste printing. The wall surface of the second protrusion (72) is attached to the wall surface of the second groove (212); The one end of the fourth air suction passage (73) located on the second protrusion (72) is arranged in a staggered manner with the glue point position (200).

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