Battery string sizing device and method

Abstract

The invention relates to the technical field of battery string preparation, and particularly discloses a battery string gluing device and method. The battery string sizing device comprises a first conveying line, a turn-over transfer mechanism, a second conveying line, two sizing mechanisms and two first cameras, the turn-over transfer mechanism can turn over the battery strings taken away from the first discharging station and transfer the turned-over battery strings to the second conveying line. The sizing mechanism is used for sizing the battery string positioned at the first sizing station or the second sizing station and comprises a printing screen capable of moving along the conveying direction of the battery string, moving along the direction vertical to the conveying direction of the battery string and rotating around the vertical direction; the first camera is used for carrying out visual positioning on the battery string positioned at the first visual positioning station or the second visual positioning station; and the gluing mechanism adjusts the position and angle of the printing screen according to the visual detection result. The battery string gluing device and method can effectively reduce the risk that the battery piece is damaged and the solder strip is separated from the battery piece, and improve the gluing precision and efficiency of the battery string.

Description

Technical Field

[0001] The present invention relates to the technical field of battery string preparation, and in particular to a battery string glue application device and method. Background Art

[0002] In the field of photovoltaic power generation technology, it is necessary to connect the positive and negative electrodes of adjacent cells through welding strips to form a cell string with a circuit structure. For a busbarless cell string, since there is no busbar on the cell, the welding strip is only welded to the cell through very tiny silver thin grid lines. This tiny welding structure easily leads to insufficient connection strength between the welding strip and the cell, and easily causes the welding strip to detach from the cell, thereby affecting the actual production yield of the cell string. In order to prevent the welding strip from detaching from the cell, after welding into a cell string, the cell string is glued and cured, so that the welding strip is fixed to the cell through several glue points.

[0003] Currently, in the process of applying glue to battery strings, it is necessary to first apply glue to one side of the battery string, then turn the battery string over and transport it to the second gluing position for gluing, and then transport the battery string to the EL detection position for detection. Therefore, the battery string needs to be moved multiple times, which easily increases the risk of battery cell damage and solder strip detachment from the battery cell, and the glue application accuracy and efficiency need to be further improved. Summary of the invention

[0004] The purpose of the present invention is to provide a battery string gluing device and method to solve the problems of easy damage to battery cells, separation of welding strips from battery cells, and low gluing accuracy and efficiency in the existing battery string gluing process.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A battery string glue applying device, comprising a first conveying line, a turning and transporting mechanism, a second conveying line, two glue applying mechanisms and two first cameras;

[0007] The first conveyor line and the second conveyor line are both capable of conveying battery strings, and the first conveyor line is provided with a first visual positioning station, a first gluing station and a first unloading station in sequence, and the second conveyor line is provided with a second visual positioning station, a second gluing station and a second unloading station in sequence;

[0008] The flipping and transporting mechanism can flip the battery string taken from the first unloading station, and transport the flipped battery string to the second conveying line;

[0009] The glue applying mechanism applies glue to the battery string located at the first glue applying station or the second glue applying station, and includes a printing screen, which can move along the battery string conveying direction, move along the direction perpendicular to the battery string conveying direction, and rotate around the vertical direction;

[0010] The first camera performs visual positioning on the battery string located at the first visual positioning station or the second visual positioning station; the glue application mechanism adjusts the position and angle of the printing screen according to the visual detection result.

[0011] The battery string gluing device of the present invention comprises the following steps: the first conveyor line conveys the battery string to the first visual positioning station, the first gluing station and the first unloading station in sequence; the first camera visually locates the battery string located at the first visual positioning station; the first gluing mechanism adjusts the position and angle of the printing screen according to the visual positioning result, and then glues the battery string located at the first gluing station; the flipping and transporting mechanism takes away the battery string located at the first unloading station, flips it over and transports it to the second conveyor line; the second conveyor line conveys the battery string to the second visual positioning station, the second gluing station and the second unloading station in sequence; the second first camera locates the battery string located at the second The battery string at the visual positioning station is visually positioned, and the second gluing mechanism adjusts the position and angle of the printing screen according to the visual positioning result, and then glue is applied to the battery string at the second gluing station; wherein, the first conveyor line and the second conveyor line are used to horizontally and stably convey the battery string, and the flipping transfer mechanism is used to perform short-distance flipping movement, which can reduce the risk of battery cell damage and solder strip detachment from the battery cell, and ensure the gluing effect on both sides of the battery string; in addition, before gluing, the first camera visually positions the battery string, and the gluing mechanism adjusts the position and angle of the printing screen according to the visual positioning result, thereby improving the gluing accuracy of the battery string.

[0012] As a preferred embodiment of the present invention, the glue applying mechanism also includes two glue scraping modules which are arranged side by side above the printing screen and can move horizontally; the glue scraping module includes a connecting plate which can move up and down, the connecting plate is rotatably connected to a mounting plate through a rotating pivot, the mounting plate is connected to a scraper, glue retaining plates are fitted on both sides of the scraper, the glue retaining plates are installed on the mounting plate in a floating manner up and down, and the lower end surface of the glue retaining plate is lower than the lower end surface of the scraper.

[0013] By setting up two scraper modules, the printing screen can be scraped back and forth; by setting glue retaining plates on both sides of the scraper, the glue can be retained in the area where the scraper is located, avoiding the situation where the scraper causes the glue to move to both sides of the screen when scraping the glue, resulting in a lack of glue and the inability to print the glue dots perfectly.

[0014] Furthermore, the scraper module also includes a group of springs that extend and retract in the vertical direction, the upper end of the spring is connected to a mounting block, the mounting block is connected to the mounting plate, and the lower end of the mounting block extends downward to the side of the glue retaining plate away from the scraper; the lower end of the spring is connected to the glue retaining plate; the mounting block is connected to a group of limit pins, and the glue retaining plate is provided with a sliding groove for guiding the limit pins to slide up and down.

[0015] By setting a set of springs, the glue retaining plate can float up and down, thus ensuring that the glue retaining plate is flexibly in contact with the surface of the printing screen. When scraping glue, the glue retaining plates on both sides protrude from the scraper, so a certain amount of glue can be retained in the area between the two glue retaining plates, which can prevent the loss of glue and ensure the scraping effect.

[0016] As a preferred embodiment of the present invention, the glue application mechanism also includes a glue supply module; the glue supply module includes a hollow glue outlet pipe located between the two scrapers, and the glue outlet pipe is fixed relative to the mounting plate; the glue outlet pipe is connected to a glue inlet pipe through a connecting pipe; and a plurality of glue outlet holes are provided at the bottom of the glue outlet pipe.

[0017] By setting up the glue supply module, uniform glue supply to the printing screen can be achieved.

[0018] As a preferred embodiment of the present invention, the second conveyor line includes a material receiving conveyor line arranged in parallel above the first conveyor line and a docking conveyor line docked with the material receiving conveyor line; the material receiving conveyor line includes two conveying assemblies moving synchronously, and the two conveying assemblies can also move in opposite directions or toward each other along the vertical battery string conveying direction to open and close;

[0019] The overturning and transporting mechanism can push the overturned battery string out from between the two separated conveying assemblies and place it on the two adjacent conveying assemblies.

[0020] By setting the second conveyor line above the first conveyor line, the space occupied by the entire device can be reduced and the movement stroke of the turning and transferring mechanism can be shortened; by setting a docking conveyor line and an openable and closable material receiving conveyor line, the material receiving and transferring and the glue applying and transferring can be carried out simultaneously, thereby improving the working efficiency.

[0021] As a preferred embodiment of the present invention, the conveying assembly includes a connecting frame, two pulleys rotatably arranged at both ends of the connecting frame, and a belt drivingly connected to the two pulleys; the connecting frame is connected to a driving assembly driving it to move along a direction perpendicular to the battery string conveying direction;

[0022] The two belt pulleys at one end of the two conveying assemblies are coaxially axially slidably connected to a connecting shaft, and the connecting shaft is connected to a first motor that drives the connecting shaft to rotate.

[0023] The connection shaft can ensure that the two conveying components run synchronously, and can prevent the two conveying components from deviating during the process of separation and closure.

[0024] As a preferred embodiment of the present invention, it also includes a transport mechanism, an NG material recovery mechanism and a third conveyor line; the transport mechanism can transport the battery strings transported by the second conveyor line to the NG material recovery mechanism or the third conveyor line.

[0025] Through the cooperation of the conveying mechanism and the NG material recovery mechanism, unqualified battery strings can be recovered in time; through the cooperation of the conveying mechanism and the third conveyor line, qualified battery strings can be transferred to the next process in time.

[0026] As a preferred embodiment of the present invention, the transport mechanism includes a transverse frame, a connecting column located below the transverse frame, a plurality of second suction cup assemblies arranged at intervals on the connecting column, a lifting drive assembly driving the connecting column to move up and down relative to the transverse frame, and a transverse module driving the transverse frame to move in a horizontal direction;

[0027] Both ends of the connecting column are provided with powered clamping components, and the two powered clamping components fix the two welding strip ends of the battery string adsorbed and fixed by the second suction cup component; an EL camera is provided on one side of the connecting column; and the connecting column is connected to a rotating driving component that drives it to rotate toward or away from the EL camera.

[0028] By providing an energized clamping assembly on the transport mechanism, the battery string can be transported to the EL inspection station and then directly subjected to EL inspection, without the need to place and take the battery string at the EL inspection station, thereby reducing the risk of battery cell damage and solder strip detachment from the battery cell.

[0029] A method for applying glue to a battery string is implemented by the above-mentioned battery string applying glue device and comprises the following steps:

[0030] The first conveyor line conveys the battery string to the first visual positioning station, and the first camera performs visual positioning on the battery string;

[0031] The first conveying line conveys the battery string to the first gluing station, and the first gluing mechanism applies glue to the first side of the battery string, and the first gluing mechanism adjusts the position and angle of the printing screen according to the visual inspection result before gluing;

[0032] The first conveyor line conveys the battery string to the first unloading station, and the flipping and transporting mechanism takes the battery string from the first unloading station, flips the battery string, and transports the flipped battery string to the second conveyor line;

[0033] The second conveyor line conveys the battery string to the second visual positioning station, and the second camera performs visual positioning on the battery string;

[0034] The second conveying line conveys the battery string to the second gluing station, and the second gluing mechanism applies glue to the second side of the battery string, and the second gluing mechanism adjusts the position and angle of the printing screen according to the visual inspection result before gluing;

[0035] The second conveyor line conveys the battery string to the second unloading station.

[0036] In the method for applying glue to a battery string of the present invention, the entire battery string is moved in a mostly consignment manner, which greatly reduces the risk of battery cell damage and welding strip detachment from the battery cell, and the operation is compact and efficient. By setting a first camera, visual inspection can be performed on the battery string before applying glue, so that the glue curing mechanism can adjust the glue application position and angle according to the visual positioning result, thereby improving the glue application accuracy.

[0037] As a preferred embodiment of the present invention, after the glue applying mechanism applies glue to the battery string, the curing mechanism cures the battery string;

[0038] The second camera performs visual inspection on the cured battery string; if the visual inspection on the first side of the battery string fails, visual positioning, gluing, curing and visual inspection on the second side of the battery string will no longer be performed.

[0039] By setting up a second camera, visual inspection can be carried out on the battery string after the glue is applied and cured to ensure the glue application effect.

[0040] As a preferred embodiment of the present invention, the battery string gluing method further comprises the following steps:

[0041] The transport mechanism takes the battery string from the second unloading station and transports it to the EL inspection station or the NG material recovery mechanism;

[0042] Two energized clamping assemblies on the handling mechanism fix two ends of the soldering ribbons of the battery string located at the EL inspection station to energize it;

[0043] The EL camera takes images of the battery string;

[0044] The transport mechanism transports the battery string to the third conveyor line or the NG material recovery mechanism according to the EL detection result.

[0045] By cooperating with the conveying mechanism, two powered clamping components and an EL camera, EL detection of battery strings can be realized. There is no need to pick up and place battery strings at the EL detection station, which reduces the risk of battery cell damage and solder ribbon detachment from battery cells and improves detection efficiency. By cooperating with the conveying mechanism, the NG material recovery mechanism and the third conveyor line, battery strings can be sorted.

[0046] The beneficial effects of the present invention are:

[0047] 1. Apply glue on both surfaces of the battery string to bond and fix each soldering ribbon to the corresponding battery cell, so that a stable and sufficiently strong connection is formed between the soldering ribbon and the battery cell, preventing the soldering ribbon from detaching from the surface of the battery cell, thereby ensuring the production yield of the battery string.

[0048] 2. Visual positioning is performed before gluing the battery string. The gluing mechanism adjusts the position and angle of the printing screen according to the visual positioning results to ensure the accuracy of the gluing position. After gluing, it is quickly cured and visually inspected after curing to ensure the gluing effect.

[0049] 3. The second conveyor line consists of a docking conveyor line and a material receiving conveyor line, which can realize the simultaneous material receiving and gluing transfer, thereby improving the working efficiency; the material receiving conveyor line includes two conveying components that run synchronously and can be opened and closed, and the two conveying components cooperate with the turning over and transfer mechanism to realize the turning over and flow transfer of the battery string, thereby simplifying the action process of turning over and transferring the battery string, and the mechanism setting is simple.

[0050] 4. The handling mechanism can flip the battery string to a certain angle to facilitate the EL camera to take pictures; after the EL test is completed, the handling mechanism directly transports the battery string that has passed the EL test to the lifting material connection line, and transports the battery string that has failed the EL test to the NG material recovery mechanism, so as to achieve the purpose of EL testing and sorting of the battery string.

[0051] 5. The NG material box recycling mechanism can recycle the battery strings that fail the visual inspection or the EL inspection; the NG material box recycling mechanism can be set between the two battery string gluing lines to receive the unqualified battery strings from the two battery string gluing lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a structural schematic diagram of a battery string glue applying device provided by the present invention.

[0053] Figure 2 It is a partial top view of a battery string glue applying device provided by the present invention.

[0054] Figure 3 yes Figure 1 Schematic diagram of the structure of the two conveying components.

[0055] Figure 4 yes Figure 1 Schematic diagram of the structure of the overturning transfer mechanism.

[0056] Figure 5 yes Figure 1 Schematic diagram of the structure of the overturning and transporting mechanism in use.

[0057] Figure 6 yes Figure 1Schematic diagram of the structure of the glue application mechanism.

[0058] Figure 7 yes Figure 6 Schematic diagram of the structure of the scraper module.

[0059] Figure 8 yes Figure 6 Schematic diagram of the structure of the glue supply module in the glue dispensing mechanism.

[0060] Fig. 9 yes Figure 1 Schematic diagram of the structure of the EL detection mechanism.

[0061] Fig.10 yes Fig. 9 The enlarged schematic diagram of point I in FIG.

[0062] Fig.11 yes Figure 2 Schematic diagram of the structure of the NG material recovery mechanism.

[0063] Fig.12 yes Figure 2 Schematic diagram of the three-dimensional structure of the NG material recovery mechanism. DETAILED DESCRIPTION

[0064] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0065] like Figures 1 to 12 As shown, a battery string gluing device, a battery string gluing device, includes a first conveying line 11, a turning and transporting mechanism 4, a second conveying line 12, two gluing mechanisms 51 and two first cameras 71;

[0066] The first conveyor line 11 and the second conveyor line 12 are both capable of conveying battery strings, and the first conveyor line 11 is sequentially provided with a first visual positioning station, a first gluing station and a first unloading station, and the second conveyor line 12 is sequentially provided with a second visual positioning station, a second gluing station and a second unloading station;

[0067] The turning and transporting mechanism 4 can turn over the battery string taken from the first unloading station, and transport the turned-over battery string to the second conveying line 12;

[0068] The glue applying mechanism 51 applies glue to the battery string located at the first glue applying station or the second glue applying station, and includes a printing screen 511, which can move along the battery string conveying direction, move along the direction perpendicular to the battery string conveying direction, and rotate around the vertical direction;

[0069] The first camera 71 performs visual positioning on the battery string located at the first visual positioning station or the second visual positioning station; the glue application mechanism 51 adjusts the position and angle of the printing screen 511 according to the visual detection result.

[0070] In the battery string gluing device of the present invention, the first conveyor line 11 conveys the battery string to the first visual positioning station, the first gluing station and the first unloading station in sequence, the first camera 71 visually locates the battery string located at the first visual positioning station, the first gluing mechanism 51 adjusts the position and angle of the printing screen 511 according to the visual positioning result, and then glues the battery string located at the first gluing station; the flipping and transporting mechanism 4 takes the battery string located at the first unloading station, flips it over and transports it to the second conveyor line 12; the second conveyor line 12 conveys the battery string to the second visual positioning station, the second gluing station and the second unloading station in sequence, the second first camera 71 locates the battery string located at the first visual positioning station, and the first gluing mechanism 51 adjusts the position and angle of the printing screen 511 according to the visual positioning result, and then glues the battery string located at the first gluing station; the flipping and transporting mechanism 4 takes the battery string located at the first unloading station, flips it over and transports it to the second conveyor line 12; the second conveyor line 12 conveys the battery string to the second visual positioning station, the second gluing station and the second unloading station in sequence, and the second first camera 71 The battery string at the second visual positioning station is visually positioned, and the second glue applying mechanism 51 adjusts the position and angle of the printing screen 511 according to the visual positioning result, and then glue is applied to the battery string at the second glue applying station; wherein, the first conveyor line and the second conveyor line are used to horizontally and stably convey the battery string, and the flipping transfer mechanism 4 is used to perform short-distance flipping movement, which can reduce the risk of battery cell damage and welding ribbon detachment from the battery cell, and ensure the gluing effect on both sides of the battery string; in addition, before gluing, the first camera 71 visually positions the battery string, and the glue applying mechanism 51 adjusts the position and angle of the printing screen 511 according to the visual positioning result, thereby improving the gluing accuracy of the battery string.

[0071] Specifically, the first conveyor line 11 includes two conveyor sections that are butted front and back and operate independently of each other. The front conveyor section is provided with a first gluing station and a first curing station, and the rear conveyor section is provided with a first unloading station. With this arrangement, gluing curing and unloading and transportation can be carried out simultaneously, thereby improving work efficiency. Among them, the rear conveyor section can adopt a conventional belt conveyor line, and a plurality of vacuum adsorption holes are provided on the belt conveying surface of the front conveyor section, which are used to vacuum adsorb and fix the battery string to prevent the battery string from shifting during the movement toward the first gluing station, thereby affecting the accuracy of the gluing position. It should be noted that a string cutting mechanism for cutting off the battery string is provided at the front end of the front conveyor section, and the string cutting mechanism itself is provided with a limiting component for limiting the two sides of the battery string. By setting the first gluing station near the front end of the previous battery string, it is possible to omit the battery string limiting mechanism at the first gluing station.

[0072] The second conveyor line 12 includes a material receiving conveyor line 121 arranged parallel to the first conveyor line 11 and a docking conveyor line 122 docking with the material receiving conveyor line 121; wherein the docking conveyor line 122 is preferably a conventional belt conveyor line; the material receiving conveyor line 121 includes two synchronously moving conveying components 2, which can also move in opposite directions or toward each other along the vertical battery string conveying direction to open and close; the flipping and transporting mechanism 4 can eject the flipped battery string from between the two separated conveying components 2 and place it on the two adjacent conveying components 2. One of the glue application and curing mechanisms 5 is located above the docking conveyor line 122.

[0073] By setting the second conveyor line 12 above the first conveyor line 11, the space occupied by the entire device can be reduced and the movement stroke of the turning transfer mechanism 4 can be shortened; by setting a docking conveyor line 122 and an openable and closable material receiving conveyor line 121, the material receiving transfer and the glue application transfer can be carried out simultaneously, thereby improving the working efficiency.

[0074] like Figure 6-7 As shown, the glue applying mechanism 51 also includes two glue scraping modules 512 which are arranged side by side above the printing screen 511 and can move horizontally; the glue scraping module 512 includes a connecting plate 5121 which can move up and down, and the connecting plate 5121 is rotatably connected to a mounting plate 5123 through a rotating pivot 5122, and the mounting plate 5123 is connected to a scraper 5124, and glue retaining plates 5125 are fitted on both sides of the scraper 5124, and the glue retaining plates 5125 are installed on the mounting plate 5123 in an up and down floating manner, and the lower end surface of the glue retaining plate 5125 is lower than the lower end surface of the scraper 5124.

[0075] Among them, the glue applying mechanism 51 moves up and down under the drive of the lifting drive module; the lifting drive module can preferably be an electric linear slide; the printing screen 511 is moved along the battery string conveying direction, moved along the vertical battery string conveying direction and rotated around the vertical direction through the drive module, and the drive module can be composed of two conventional linear drive components and one rotating drive component. The two scraping glue modules 512 are connected to a transverse movement module that drives them to move horizontally, and the transverse movement module can be an electric linear slide, etc. The connecting plate 5121 is connected to a connecting plate drive component that drives it to move up and down, and the connecting plate drive component is preferably a linear motor.

[0076] In order to achieve the up and down floating of the rubber plate 5125, a group of springs 5126 that can be extended and retracted in the vertical direction can be set, and the upper end of the spring 5126 is connected to a mounting block 5127, and the mounting block 5127 is connected to the mounting plate 5123, and the lower end of the mounting block 5127 extends downward to the side of the rubber plate 5125 away from the scraper 5124; the lower end of the spring 5126 is connected to the rubber plate 5125; the mounting block 5127 is connected to a group of limit pins 5128, and the rubber plate 5125 is provided with a sliding groove for guiding the limit pins 5128 to slide up and down.

[0077] The present invention can realize the floating of the glue retaining plate 5125 by setting a group of springs 5126, thereby ensuring that the glue retaining plate 5125 flexibly abuts against the surface of the printing screen 511. When scraping glue, the glue retaining plates 5125 on both sides protrude from the scraper 5124, so a certain amount of glue can be trapped in the area between the two glue retaining plates 5125, which can prevent the loss of glue, thereby ensuring the scraping effect.

[0078] like Figure 8 As shown, the glue application mechanism 51 further includes a glue supply module 513; the glue supply module 513 includes a hollow glue outlet pipe 5131 located between two scrapers 5124, and the glue outlet pipe 5131 is fixed relative to the mounting plate 5123; the glue outlet pipe 5131 is connected to a glue inlet pipe 5133 through a connecting pipe 5132; and a plurality of glue outlet holes are provided at the bottom of the glue outlet pipe 5131. By providing the glue supply module 513, uniform glue supply to the printing screen 511 can be achieved.

[0079] The outlet side of the glue applying mechanism 51 is provided with a curing mechanism 52, which can be cured by UV curing or heat curing, which needs to be selected according to the glue liquid applied by the glue applying mechanism 51. The outlet side of the curing mechanism 52 is provided with a second camera 72, which is used to visually inspect the battery strings conveyed by the first conveyor line 11 or the docking conveyor line 122 after curing to detect the gluing effect.

[0080] like Figure 3 As shown, the two conveying components 2 of the material receiving conveying line 121 each include a connecting frame 21, two pulleys 22 rotatably arranged at both ends of the connecting frame 21, and a belt 23 drivingly connected to the two pulleys 22. The connecting frame 21 is connected to a driving component 24 that drives it to move along a direction perpendicular to the battery string conveying direction, and the driving component 24 is preferably one or more cylinders; the two pulleys 22 at one end of the two conveying components 2 are coaxially axially slidably connected to a connecting shaft 25, and the connecting shaft 25 is connected to a first motor 26 that drives it to rotate.

[0081] When in use, driven by the two driving assemblies 24, the two conveying assemblies 2 move axially toward or away from each other along the connecting shaft 25 to bring the two conveying assemblies 2 together or apart. The connecting shaft 25 can ensure that the two conveying assemblies 2 run synchronously and prevent the two conveying assemblies 2 from deviating during the process of separation and closure.

[0082] Furthermore, two limiting mechanisms 6 are arranged opposite to each other above the material receiving conveying line 121; the limiting mechanism 6 comprises a limiting bar 61 parallel to the conveying direction of the battery string, a plurality of guide wheels 62 arranged at intervals along the length direction of the limiting bar 61, and a limiting bar driving member 63 driving the limiting bar 61 to move along the vertical direction of the conveying direction of the battery string. Among them, each guide wheel 62 is rotatably arranged below the limiting bar 61; the limiting bar driving member 63 is preferably a cylinder.

[0083] When in use, driven by the limiting driving members 63 , the two limiting bars 61 move toward each other, and the battery strings on the two conveying assemblies 2 are positioned through the guide wheels 62 .

[0084] By setting the limiting mechanism 6, the two sides of the battery string received by the material conveying line 121 can be positioned so that the postures of the battery cells in the battery string are consistent, reducing the position and angle adjustment of the printing screen in the glue applying mechanism 51 and improving the glue applying accuracy.

[0085] like Figure 4 As shown, the flipping and transfer mechanism 4 includes a lifting frame 41, a flipping beam 42 rotatably connected to the lifting frame 41, a first suction cup assembly 43 installed on the flipping beam 42, a flipping drive member 44 for driving the flipping beam 42 to flip relative to the lifting frame 41, and a lifting drive assembly for driving the lifting frame 41 to move up and down.

[0086] By providing a lifting frame 41 that can move up and down, the first suction cup assembly 43 can move downward to absorb and fix the first side of the battery string; by providing a flippable flip beam 42, the first suction cup assembly 43 can absorb and fix the battery string and flip it over so that the second side of the battery string faces upward.

[0087] The first suction cup assembly 43 includes a plurality of suction cup brackets spaced apart along the length direction of the flip beam 42 , and the suction cup bracket is connected to the flip beam 42 via a locking screw; the suction cup bracket is connected to two suction cups, and the two suction cups are disposed on both sides of the flip beam 2 .

[0088] The lifting frame 41 is connected to two upright posts 40 by sliding up and down. The lifting drive assembly includes an upright plate 45 relatively fixed between the two upright posts 40, a vertically arranged screw rod 46, a screw rod nut threadedly matched with the screw rod 46, a pulley assembly 47 and a second motor 48; the screw rod 46 is rotationally connected to the upright plate 45, the screw rod nut is connected to the lifting frame 41, and the output end of the second motor 48 is transmission-connected to the lower end of the screw rod 46 through the pulley assembly 47. When in use, under the drive of the second motor 48, the screw rod 46 rotates relative to the upright plate 45, thereby causing the lifting frame 41 to move up and down relative to the two upright posts 40, so that the first suction cup assembly 43 adsorbs and fixes the battery string to move up and down.

[0089] The flip driving member 44 is preferably a rotary cylinder installed on the lifting frame 41 .

[0090] The battery string glue application device of the present invention further includes a transport mechanism 8 , an NG material recovery mechanism 9 and a third conveyor line 3 ; the transport mechanism 8 is used to transport the battery string conveyed by the second conveyor line 12 to the NG material recovery mechanism 9 or the third conveyor line 3 .

[0091] By cooperating with the transport mechanism 8 and the NG material recovery mechanism 9, unqualified battery strings can be recovered in time; by cooperating with the transport mechanism 8 and the third conveyor line 3, qualified battery strings can be transferred to the next process in time.

[0092] like Fig. 9 and 10 As shown, the transport mechanism 8 includes a transverse frame 81, a connecting column 82 located below the transverse frame 81, a second suction cup assembly 83 installed on the connecting column 83, a lifting drive assembly 84 for driving the connecting column 82 to move up and down relative to the transverse frame 81, and a transverse module 85 for driving the transverse frame 81 to move in the horizontal direction.

[0093] Furthermore, both ends of the connecting column 82 are provided with an energized clamping assembly 86, and the two energized clamping assemblies 86 fix the two ends of the soldering ribbon of the battery string adsorbed and fixed by the second suction cup assembly 84; an EL camera 87 is provided on one side of the connecting column 82; and the connecting column 82 is connected to a second rotating driving member 88 that drives it to rotate toward or away from the EL camera 87. By providing the energized clamping assembly 86 on the conveying mechanism 8, the EL inspection can be directly performed after the battery string is conveyed to the EL inspection station, without the need to pick up and place the battery string at the EL inspection station, thereby reducing the risk of damaging the battery cell and the soldering ribbon detaching from the battery cell.

[0094] In this embodiment, the lifting drive assembly 84 includes two lifting plates 841 arranged opposite to each other, the lifting plates 841 are connected to the traverse frame 81 for sliding up and down movement, and are connected to a lifting plate driving member 842; the connecting column 82 is rotatably connected between the two lifting plates 841, and the second rotating driving member 88 is preferably a servo motor installed on one of the lifting plates 841. In this embodiment, the structure of the second suction cup assembly 83 is basically the same as that of the first suction cup assembly 43, and the lifting plate driving member 842 can be a cylinder or an electric linear slide, etc. The traverse module 85 can be an electric linear slide, or a motor-driven screw assembly, or a motor-driven pulley assembly, etc.

[0095] When in use, driven by the two lifting plate driving members 842, the two lifting plates 841 move up and down together, driving the connecting column 82 and the second suction cup assembly 83 to move up and down together, so as to take and place the battery string. Driven by the transverse movement module 85, the transverse movement frame 81 moves in the horizontal direction, thereby driving the connecting column 82 and the second suction cup assembly 83 to move between the second conveyor line 12 and the NG material recovery mechanism 9 / the third conveyor line 3.

[0096] The powered clamping assembly 86 includes a fixed seat 861 and a conductive block 864 connected to the connecting column 82, an insulating plate 862 rotatably disposed on the fixed seat 861, and a first rotating driving member 863. The first rotating driving member 863 drives the insulating plate 862 to rotate relative to the fixed seat 861, so that the insulating plate 862 cooperates with the conductive block 864 to clamp and fix the end of the welding strip. In this embodiment, the first rotating driving member 863 is preferably a servo motor.

[0097] When performing EL detection, two powered clamping assemblies 86 are used to clamp and fix the two soldering ribbon ends of the battery string adsorbed and fixed by the second suction cup assembly 83; driven by the second rotating drive member 843, the connecting column 82 and the second suction cup assembly 83 rotate toward the EL camera 87 together, driving the battery string adsorbed and fixed by the second suction cup assembly 83 to rotate together, so that the EL camera 87 can take images of the battery string.

[0098] By using the transport mechanism 8, the battery string can be flipped at a certain angle to facilitate the EL camera 87 to take pictures; after the EL test is completed, the battery string that passes the EL test is directly transported to the third conveyor line 3, and the battery string that fails the EL test is transported to the NG material recovery mechanism 9, so as to achieve the purpose of EL testing and sorting the battery string. For the battery string that fails the visual test, the transport mechanism 8 directly transports it to the NG material recovery mechanism 9 without the need for EL testing.

[0099] The structure of the NG material recovery mechanism 9 is as follows: Fig.11 and 12As shown, it includes a receiving platform 91, an NG material box 92 located on the receiving platform 91, a rotating drive member 93 for driving the receiving platform 91 to rotate, and a lifting drive member 94 for driving the receiving platform 91 to lift and lower. Among them, the NG material box 92 is fixed to the receiving platform 91 by a pluggable limit pin; the receiving platform 91 is connected to a circular track 96 for guiding it to rotate, and the receiving platform 91 can be set in the circular track 96, or the circular track 96 can be set at the bottom of the receiving platform 91. Furthermore, the receiving platform 91 is connected to a linear drive member 95, which is used to drive the receiving platform 91 to move and extend along the vertical battery string conveying direction, so as to facilitate the operator to pull and put the NG material box 92. In this embodiment, the rotating drive member 93 is preferably a rotary cylinder, and the lifting drive member 94 and the linear drive member 95 are preferably cylinders.

[0100] When in use, the receiving platform 91 moves upward under the drive of the lifting drive member 94, so that the NG material box 92 is pulled out to receive unqualified battery strings; the receiving platform 91 rotates under the drive of the rotating drive member 93; the receiving platform 91 extends under the drive of the linear drive member 95; the limit pin is pulled out, and the NG material box 92 is pulled out. The NG material recovery mechanism 9 is used to facilitate manual access and replacement of the NG material box 92.

[0101] As a preferred embodiment of the present invention, the third conveyor line 3 includes a lifting material receiving line 31 and a battery string output flow line 32 connected to the lifting material receiving line 31. Among them, the lifting material receiving line 31 includes two synchronously moving material receiving and conveying components, and the structures of these two material receiving and conveying components are basically the same as the structures of the two conveying components 2, except that the connecting frames 21 of the two material receiving and conveying components are connected by a connecting plate, and the connecting plate is connected to a jacking cylinder that drives it to rise and fall. When the EL test is qualified, the jacking cylinder drives the connecting plate to move upward, driving the two material receiving and conveying components to move upward together to receive the battery strings adsorbed and fixed by each second suction cup assembly 87; the two material receiving and conveying components move downward together and reset and then move together to convey the battery string to the battery string output flow line 32. Among them, the battery string output flow line 32 is preferably a belt conveyor line.

[0102] In this embodiment, the first conveyor line 11, the second conveyor line 12 and the third conveyor line 3 constitute a battery string glue application streamline; as a preferred embodiment of the present invention, the battery string glue application device includes an NG material recovery mechanism 9 and two battery string glue application streamlines that are mirror-symmetrically arranged relative to the NG material recovery mechanism 9. By setting a mirror-symmetrical battery string glue application device, the glue application efficiency can be greatly improved, and only one NG material recovery mechanism 9 needs to be set, which reduces the manufacturing cost and improves the utilization rate of the NG material recovery mechanism 9. The entire battery string glue application device has a compact structure, is easy to use, and is efficient.

[0103] The present invention also provides a battery string gluing method, which is implemented by the battery string gluing device described above and includes the following steps:

[0104] The first conveyor line 11 conveys the battery string to the first visual positioning station, and the first camera 71 performs visual positioning on the battery string;

[0105] The first conveying line 11 conveys the battery string to the first gluing station, and the first gluing mechanism 51 applies glue to the first side of the battery string, and the first gluing mechanism 51 adjusts the position and angle of the printing screen 511 according to the visual inspection result before gluing;

[0106] The first conveyor line 11 conveys the battery string to the first unloading station, and the flipping and transporting mechanism 4 takes the battery string from the first unloading station, flips the battery string, and transports the flipped battery string to the second conveyor line 12;

[0107] The second conveyor line 12 conveys the battery string to the second visual positioning station, and the second camera 71 performs visual positioning on the battery string;

[0108] The second conveying line 12 conveys the battery string to the second gluing station, and the second gluing mechanism 51 applies glue to the second side of the battery string, and the second gluing mechanism 51 adjusts the position and angle of the printing screen 511 according to the visual inspection result before gluing;

[0109] The second conveyor line 12 conveys the battery string to the second unloading station.

[0110] A method for gluing a battery string of the present invention horizontally conveys the battery string through the first conveyor line 11 and the second conveyor line 12, and respectively applies glue to the first side and the second side of the battery string through two gluing mechanisms 51, and the battery string that has completed the gluing on the first side is turned over and transferred to the second conveyor line 12 through the flipping and transporting mechanism 4. The entire battery string movement process is mostly carried out in a consignment movement mode, which greatly reduces the risk of battery cell damage and welding ribbon detachment from the battery cell, and the operation rhythm is compact and efficient. In addition, the gluing mechanism 51 adjusts the gluing position and angle according to the visual positioning result of the first camera 71 before gluing, thereby improving the gluing accuracy.

[0111] The first conveyor line 11 is also provided with a first curing station, which is located between the first gluing station and the first unloading station. The second conveyor line is also provided with a second curing station, which is located between the second gluing station and the second unloading station. After the gluing mechanism 51 applies glue to the battery string, the curing mechanism 52 cures the battery string located at the first curing station or the second curing station; the second camera 72 performs visual inspection on the cured battery string; if the visual inspection of the first side of the battery string fails, visual positioning, gluing, curing and visual inspection of the second side of the battery string will no longer be performed.

[0112] The present invention provides a second camera 72 to achieve visual inspection of the battery string after the glue is applied and cured, so as to ensure the glue application effect.

[0113] The battery string gluing method of the present invention further comprises the following steps:

[0114] The transport mechanism 8 takes the battery string from the second unloading station and transports it to the EL inspection station or the NG material recovery mechanism 9;

[0115] Two energized clamping assemblies 86 on the transport mechanism 8 fix two soldering ribbon ends of the battery string located at the EL detection station to energize;

[0116] The EL camera 87 takes an image of the battery string;

[0117] The transport mechanism 8 transports the battery string to the third conveyor line 3 or the NG material recovery mechanism 9 according to the EL detection result.

[0118] The present invention can realize EL detection of battery strings by cooperating the conveying mechanism 8 with two powered clamping components 86 and the EL camera 87, without the need to pick up and place the battery strings at the EL detection station, thereby reducing the risk of battery cell damage and welding ribbon detachment from the battery cell and improving the detection efficiency; the conveying mechanism 8 can realize sorting of battery strings by cooperating with the NG material recovery mechanism 9 and the third conveyor line 3, and for battery strings that fail the visual inspection and the EL inspection, the conveying mechanism 8 conveys these battery strings to the NG material recovery mechanism 9 for recycling through the NG material recovery mechanism 9; for battery strings that pass both the visual inspection and the EL inspection, the conveying mechanism 8 conveys these battery strings to the third conveyor line 3, and conveys them to the next process through the third conveyor line 3.

[0119] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A battery string glue application device, characterized in that: It comprises a first conveying line (11), a turning and transferring mechanism (4), a second conveying line (12), two glue applying mechanisms (51) and two first cameras (71); The first conveyor line (11) and the second conveyor line (12) are both capable of conveying battery strings, and the first conveyor line (11) is provided with a first visual positioning station, a first gluing station and a first unloading station in sequence, and the second conveyor line (12) is provided with a second visual positioning station, a second gluing station and a second unloading station in sequence; The overturning and transporting mechanism (4) is capable of overturning the battery string taken from the first unloading station, and transporting the overturned battery string to the second conveying line (12); The glue applying mechanism (51) applies glue to the battery string located at the first glue applying station or the second glue applying station, and comprises a printing screen (511), wherein the printing screen (511) can move along the battery string conveying direction, move along the direction perpendicular to the battery string conveying direction, and rotate around the vertical direction; The first camera (71) performs visual positioning on the battery string located at the first visual positioning station or the second visual positioning station; the glue application mechanism (51) adjusts the position and angle of the printing screen (511) according to the visual detection result.

2. A battery string glue application device according to claim 1, characterized in that: The glue applying mechanism (51) further comprises two glue scraping modules (512) which are arranged side by side above the printing screen (511) and can move horizontally; the glue scraping module (512) comprises a connecting plate (5121) which can move up and down, the connecting plate (5121) is rotatably connected to a mounting plate (5123) via a rotating pivot (5122), the mounting plate (5123) is connected to a scraper (5124), glue retaining plates (5125) are fitted on both sides of the scraper (5124), the glue retaining plates (5125) are mounted on the mounting plate (5123) in an up and down floating manner, and the lower end surface of the glue retaining plate (5125) is lower than the lower end surface of the scraper (5124).

3. A battery string glue application device according to claim 2, characterized in that: The glue application mechanism (51) further comprises a glue supply module (513); the glue supply module (513) comprises a hollow glue outlet pipe (5131) located between the two scrapers (5124), and the glue outlet pipe (5131) is fixedly arranged relative to the mounting plate (5123); the glue outlet pipe (5131) is connected to a glue inlet pipe (5133) via a connecting pipe (5132); and a plurality of glue outlet holes are provided at the bottom of the glue outlet pipe (5131).

4. A battery string glue application device according to claim 1, characterized in that: The second conveyor line (12) comprises a material receiving conveyor line (121) arranged in parallel above the first conveyor line (11) and a docking conveyor line (122) docked with the material receiving conveyor line (121); the material receiving conveyor line (121) comprises two conveying assemblies (2) that move synchronously, and the two conveying assemblies (2) can also move in opposite directions or towards each other along a direction perpendicular to the battery string conveying to be opened and closed; The overturning and transporting mechanism (4) is capable of ejecting the overturned battery string from between the two separated conveying assemblies (2) and placing it on the two adjacent conveying assemblies (2).

5. A battery string glue application device according to claim 2, characterized in that: The conveying assembly (2) comprises a connecting frame (21), two pulleys (22) rotatably arranged at two ends of the connecting frame (21), and a belt (23) drivingly connected to the two pulleys (22); the connecting frame (21) is connected to a driving assembly (24) for driving it to move in a direction perpendicular to the battery string conveying direction; The two pulleys (22) at one end of the two conveying assemblies (2) are coaxially axially slidably connected to a connecting shaft (25), and the connecting shaft (25) is connected to a first motor (26) that drives it to rotate.

6. A battery string glue application device according to claim 1, characterized in that: It also includes a transport mechanism (8), an NG material recovery mechanism (9) and a third conveyor line (3); the transport mechanism (8) is capable of transporting the battery string transported by the second conveyor line (12) to the NG material recovery mechanism (9) or the third conveyor line (3).

7. A battery string glue application device according to claim 6, characterized in that: The transport mechanism (8) comprises a transverse frame (81), a connecting column (82) located below the transverse frame (81), a plurality of second suction cup assemblies (83) arranged at intervals on the connecting column (83), a lifting drive assembly (84) for driving the connecting column (82) to move up and down relative to the transverse frame (81), and a transverse module (85) for driving the transverse frame (81) to move in a horizontal direction; Both ends of the connecting column (82) are provided with an energized clamping assembly (86), and the two energized clamping assemblies (86) are used to fix the two welding ribbon ends of the battery string adsorbed and fixed by the second suction cup assembly (84); an EL camera (87) is provided on one side of the connecting column (82); and the connecting column (82) is connected to a rotating driving member (88) that drives it to rotate toward or away from the EL camera (87).

8. A method for applying glue to a battery string, characterized in that: The battery string gluing method is implemented by the battery string gluing device according to any one of claims 1 to 7, and comprises the following steps: The first conveyor line (11) conveys the battery string to the first visual positioning station, and the first camera (71) performs visual positioning on the battery string; The first conveying line (11) conveys the battery string to the first gluing station, and the first gluing mechanism (51) applies glue to the first surface of the battery string, and the first gluing mechanism (51) adjusts the position and angle of the printing screen according to the visual inspection result before gluing; The first conveyor line (11) conveys the battery string to the first unloading station, the flipping and transporting mechanism (4) takes the battery string from the first unloading station, flips the battery string, and transports the flipped battery string to the second conveyor line (12); The second conveyor line (12) conveys the battery string to a second visual positioning station, and the second camera (71) performs visual positioning on the battery string; The second conveying line (12) conveys the battery string to the second gluing station, and the second gluing mechanism (51) applies glue to the second side of the battery string, and the second gluing mechanism (51) adjusts the position and angle of the printing screen according to the visual inspection result before gluing; The second conveying line (12) conveys the battery string to the second unloading station.

9. A method for applying glue to a battery string according to claim 8, characterized in that: After the glue applying mechanism (51) applies glue to the battery string, the curing mechanism (52) cures the battery string; The second camera (72) performs visual inspection on the cured battery string; if the visual inspection on the first side of the battery string fails, visual positioning, gluing, curing and visual inspection on the second side of the battery string will no longer be performed.

10. A method for applying glue to a battery string according to claim 9, characterized in that: The battery string gluing method further comprises the following steps: The transport mechanism (8) takes the battery string from the second unloading station and transports it to the EL inspection station or the NG material recovery mechanism (9); Two energizing clamping assemblies (86) on the transport mechanism (8) fix two welding strip ends of the battery string located at the EL detection station to energize; The EL camera (87) takes an image of the battery string; The transport mechanism (8) transports the battery string to the third conveyor line (3) or the NG material recovery mechanism (9) according to the EL detection result.

Images