A photovoltaic module small piece long strip placement device and method

Abstract

The application discloses a kind of photovoltaic module small piece long strip placing equipment and method, it includes conveying line, conveying photovoltaic module to operating station;Long strip placing unit is provided with two groups respectively in operating station X direction two sides, and includes long strip feeding mechanism, long strip carrying mechanism and long strip spot welding mechanism that long strip is placed to photovoltaic module on the first material receiving platform by long strip feeding mechanism from the first material receiving platform and is extracted long strip;Small piece feeding unit, supply small piece and be located in operating station Y direction one side;Visual positioning unit, the position of lead wire on photovoltaic module is visually positioned;Lead wire correction unit, the position of lead wire on photovoltaic module is corrected under the guidance of visual positioning unit;Small piece carrying placing unit, small piece is placed to photovoltaic module lead wire position from small piece feeding unit by suction.The application can realize the simultaneous placement of long strip and small piece, satisfy photovoltaic module production process demand.

Description

Technical Field

[0001] This invention belongs to the technical field of photovoltaic module production equipment, and in particular relates to a device and method for placing small strips of photovoltaic modules. Background Technology

[0002] In the manufacturing process of photovoltaic modules, there is a gap in the EVA film at the lead connection location to allow the lead to pass through and be exposed. To fill this gap, a small insulating block is usually used to cover it, preventing the molten material from being squeezed out of the gap after the film melts during lamination. When installing the insulating block, it needs to pass through the vertical leads on the photovoltaic module. However, the vertical leads on the photovoltaic module can have various orientations and are not always perfectly straight. Therefore, the lead needs to be aligned during the installation of the insulating block so that it can smoothly pass through the perforations in the insulating block before being attached to the EVA film surface.

[0003] Due to changes in the manufacturing process of photovoltaic modules, multiple insulating strips need to be placed at a designated location above the battery module of the photovoltaic module, along the long side of the photovoltaic module. These insulating strips are called strips.

[0004] The prior art patent CN115557043B discloses an integrated equipment and process for placing and labeling small insulating materials for photovoltaic modules. This equipment realizes lead wire straightening, small piece feeding, punching, handling and placement, but it cannot realize the synchronous placement of long strips.

[0005] Currently, no existing technology can simultaneously place both long strips and small blocks. Therefore, it is necessary to provide a new device and method for placing small strips of photovoltaic modules to solve the aforementioned technical problems. Summary of the Invention

[0006] The main objective of this invention is to provide a device for placing small and long strips of photovoltaic modules, which can simultaneously place long strips and small blocks to meet the requirements of photovoltaic module production processes.

[0007] This invention achieves the above objective through the following technical solution: a device for placing small strips of photovoltaic modules, comprising:

[0008] Conveyor line, transporting photovoltaic modules to the operating station;

[0009] The strip placement unit is provided with two sets located on both sides of the X direction of the operation station, and includes a strip feeding mechanism for supplying strips to the first receiving platform, a strip transport mechanism for picking up strips from the first receiving platform and placing them on the photovoltaic module, and a strip spot welding mechanism for welding and fixing the strips to the photovoltaic module.

[0010] Small piece feeding unit, feeding small pieces and located at one side of the operation station Y;

[0011] Visual positioning unit, located above the operation station, visually positioning the lead wire position on the photovoltaic module;

[0012] Lead wire correction unit, located above the operation station, correcting the position of the lead wire on the photovoltaic module under the guidance of the visual positioning unit;

[0013] Small piece carrying and placing unit, sucking small pieces from the small piece feeding unit and placing them at the lead wire position of the photovoltaic module.

[0014] Further, the long strip feeding mechanism comprises the first receiving platform arranged along the Y direction, two groups of long strip feeding modules arranged on both sides of the first receiving platform along the Y direction, a long strip pulling module for pulling the long strip material head from the long strip feeding module and placing it on the first receiving platform, a long strip cutting module for cutting the long strip material after it is pulled out to a certain length, and a pressing module for pressing the long strip material when the long strip cutting module cuts the long strip material tail; the long strip cutting module and the pressing module are correspondingly arranged in two groups, respectively cooperating with the two groups of long strip feeding modules.

[0015] Further, the two groups of long strip feeding modules are respectively a first long strip feeding module and a second long strip feeding module; the long strip pulling module comprises a Y-axis driving module, a first supporting plate driven by the Y-axis driving module to move along the Y direction, and two groups of pulling jaw assemblies arranged at both ends of the first supporting plate along the Y direction; the two groups of pulling jaw assemblies are respectively a first pulling jaw assembly and a second pulling jaw assembly, respectively cooperating with the first long strip feeding module and the second long strip feeding module.

[0016] Further, the long strip feeding module comprises a support and a unwinding module arranged on the support, the unwinding module is arranged in two groups and alternately unwinds the material; the unwinding module is provided with a plurality of unwinding positions for simultaneously outputting a plurality of long strips; the pulling jaw assembly is provided with a plurality of jaw assemblies corresponding to the unwinding positions.

[0017] Further, the pressing module comprises a first Z-axis driving module, a second supporting plate driven by the first Z-axis driving module to move up and down, and a pressing module fixed on the second supporting plate; the pressing module is arranged in two groups and respectively cooperates with the two groups of unwinding modules; the two groups of pressing modules are arranged in layers above and below, and are lifted to the height suitable for the first receiving platform under the driving of the first Z-axis driving module.

[0018] Further, the long strip cutting module comprises a first X-axis driving module, a third supporting plate moving along the X direction driven by the first X-axis driving module, a first air cylinder fixed on the third supporting plate, and a cutter moving up and down driven by the first air cylinder.

[0019] Further, the long strip conveying mechanism comprises a first camera photographing one end of the long strip on the first material receiving platform, an XYZ driving module, a first motor arranged at the active end of the XYZ driving module, a fourth supporting plate rotating around the Z axis driven by the first motor, and a first suction nozzle module mounted on the fourth supporting plate; the first camera is provided with two groups, respectively located above the two ends of the first material receiving platform in the Y direction; the position information of the tail end of the long strip is obtained through the first camera, and when the long strip conveying mechanism sucks the long strip, the side edge position of the tail end of the long strip is taken as the reference to determine the tail end position of the long strip, and the length information of the long strip is used to determine the head end position of the long strip to guide the position adjustment of the XYZ driving module; the horizontal deflection angle of the long strip is determined based on the two right angle positions of the tail end of the long strip to guide the attitude adjustment of the first motor.

[0020] Further, the long strip spot welding mechanism comprises a second air cylinder, a fifth supporting plate moving along the X direction driven by the second air cylinder, a third air cylinder fixed on the fifth supporting plate, a first supporting beam moving up and down driven by the third air cylinder and extending along the Y direction, and a plurality of spot welding assemblies arranged in the Y direction on the first supporting beam; the spot welding assembly comprises a sixth supporting plate fixed on the first supporting beam, a spot welding head fixed on the sixth supporting plate, and a floating pressing plate elastically floating up and down on the sixth supporting plate below the spot welding head.

[0021] Further, the small block feeding unit comprises a small block conveying line conveying the small blocks in the Y direction, a first small block feeding module and a second small block feeding module located on both sides of the end of the small block conveying line in the X direction, a small block feeding and conveying module placing the small blocks on the small block conveying line in the first small block feeding module and the second small block feeding module, and a third camera located above the end of the small block conveying line.

[0022] Further, the first small piece feeding module and the second small piece feeding module each comprise small piece feeding modules, small piece tape buffer modules, punching modules, feeding modules and small piece cutting modules arranged in sequence along the small piece tape conveying direction, and a second receiving platform arranged at the output side of the small piece cutting module; the small piece loading and carrying module comprises a second X-axis driving module, a seventh support plate driven to move along the X direction by the second X-axis driving module, and two groups of suction assemblies fixed on the seventh support plate and symmetrically arranged about the Y axis; the two groups of suction assemblies are respectively matched with the first small piece feeding module and the second small piece feeding module; the suction assembly comprises a fourth air cylinder fixed on the seventh support plate and a second suction nozzle module driven to move up and down by the fourth air cylinder.

[0023] Further, the visual positioning unit comprises a second support beam and a plurality of second cameras arranged on the second support beam in the X direction; the lead wire correction unit comprises a third support beam, a second Z-axis driving module fixed on the third support beam, a fourth support beam driven to move up and down by the second Z-axis driving module, and a plurality of lead wire correction modules movably arranged on the fourth support beam in the X direction; the second support beam and the third support beam are adjustably arranged in the Y direction on a gantry frame;

[0024] The small piece carrying and placing unit comprises a YZ driving module, a fifth support beam arranged at the movable end of the YZ driving module, and a plurality of small piece suction modules movably arranged on the fifth support beam in the X direction; the small piece suction module comprises a third motor, a ninth support plate driven to move in the X direction by the third motor, a seventh air cylinder fixed on the ninth support plate, and a third suction nozzle module driven to move up and down by the seventh air cylinder.

[0025] Another object of the present application is to provide a photovoltaic module small piece long strip placing method, which is realized based on the above-mentioned photovoltaic module small piece long strip placing device and comprises the following steps:

[0026] S1, the photovoltaic module is conveyed to the operation station by the conveying line, and the positions around the photovoltaic module are corrected;

[0027] S2, a long strip is placed at the set position on each of the two long sides of the photovoltaic module:

[0028] S21, the long strip pulling module pulls out a plurality of long strips from the long strip feeding module to a set length, and then places them on the first receiving platform; the long strip cutting module cuts the tail end of the long strip tape to obtain a long strip;

[0029] S22, the first camera takes a photo of the tail end of the long strip on the first receiving platform to obtain first pose information;

[0030] S23, the long strip conveying mechanism adjusts the pose of the first suction nozzle module thereof according to the first pose information, so as to set the long strip to be sucked from the first material receiving platform;

[0031] S24, the long strip conveying mechanism is adsorbed to move above the photovoltaic module, and the long strip is placed at a specified position on the photovoltaic module;

[0032] S25, the long strip spot welding mechanism moves to the working position, and the long strip is welded and fixed on the photovoltaic module, and the long strip placement is completed;

[0033] S3, small block supply suction: synchronously executed with step S2, the small block supply unit supplies the small block, the small block conveying and placing unit sucks the small block to move above the lead wire of the photovoltaic module, and the small block supply suction is completed;

[0034] S4, lead wire correction: synchronously executed with step S3, the visual positioning unit obtains the position of the lead wire on the photovoltaic module; the lead wire correction unit corrects the position of the lead wire according to the lead wire position information;

[0035] S5, the small block conveying and placing unit sucks the small block and places it at the lead wire, the lead wire passes through the perforation on the small block, and the small block falls to the root of the lead wire bending, and the small block placement is completed.

[0036] Compared with the prior art, the photovoltaic module small block and long strip placing device and method has the following beneficial effects:

[0037] (1) The automatic and accurate placement of the long strip and the small block is realized: the long strip supply, pulling, cutting, accurate taking and accurate placing are realized through the long strip placing unit; the automatic supply, punching, feeding, cutting, adsorption, conveying and placing of the small block are realized through the setting of the small block supply unit and the small block conveying and placing unit; the visual positioning unit and the lead wire correction unit are set to accurately position the lead wire position when the small block is placed, and cooperate with the lead wire correction unit to correct the position and attitude of the lead wire, so that the lead wire can accurately pass through the perforation on the small block, and then the small block is placed smoothly and reliably;

[0038] (2) The supply efficiency of the long strip and the small block and the pulling efficiency of the long strip are improved: the long strip supply adopts two groups of supply modules to alternately supply, and cooperates with the two-end pulling clamp assembly to avoid the empty running of the pulling assembly, so that the pulling efficiency is improved; each group of supply modules is provided with double unwinding modules and hot melting components to realize uninterrupted supply and rapid roll changing, and reduce manual intervention; the small block supply adopts double modules to alternately supply, and cooperates with the hot melting component to solve the intermittent supply and roll changing problems, so that the continuity of the supply is significantly improved;

[0039] (3) Improve the strip and small block placement precision: the strip conveying mechanism is provided with double cameras for positioning the tail end of the strip pulled out by different feeding modules, the nozzle pose is adjusted in combination with the motor and the driving module to ensure accurate placement of the strip without deviation; the lead correction unit fixes the lead root through the pressing module, cooperates with the straightening module to accurately constrain the lead position, avoids battery string displacement, and ensures stable electrical connection;

[0040] (4) Enhance the equipment adaptability: the visual positioning unit and the lead correction unit are adjustably arranged on the gantry frame along the Y direction, the position can be adjusted according to different specifications of photovoltaic modules, and the production demand of various sizes can be adapted, so that the universality is greatly improved;

[0041] (5) Optimize the production rhythm: the strip and small block placement process can be executed synchronously, and multiple components can be processed by multiple groups of adsorption modules at the same time, so that the process waiting time is reduced, in combination with efficient feeding and accurate positioning, the overall production rhythm is accelerated, and the high-capacity production demand is met. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a top view structural schematic diagram of the embodiment of the application;

[0043] Figure 2 It is a structural schematic diagram of the strip feeding mechanism and the strip conveying mechanism in the strip placement unit of the embodiment of the application;

[0044] Figure 3 It is a structural schematic diagram of the strip feeding mechanism in the embodiment of the application;

[0045] Figure 4 It is a structural schematic diagram of the strip feeding mechanism in the embodiment of the application;

[0046] Figure 5 It is a structural schematic diagram of the strip feeding module, the strip cutting module and the pressing module in the embodiment of the application;

[0047] Figure 6 It is a structural schematic diagram of the pressing module in the embodiment of the application;

[0048] Figure 7 It is a structural schematic diagram of the strip spot welding mechanism in the embodiment of the application;

[0049] Figure 8 It is a structural schematic diagram of the spot welding assembly in the embodiment of the application;

[0050] Figure 9 It is a structural schematic diagram of the strip conveying mechanism in the embodiment of the application;

[0051] Figure 10 It is a partial structural schematic diagram of the embodiment of the application;

[0052] Figure 11Structure diagram of small block feeding unit in the embodiment of the present application;

[0053] Figure 12 Structure diagram of small block feeding and carrying module in the embodiment of the present application;

[0054] Figure 13 Structure diagram of small block carrying and placing unit, visual positioning unit and lead correction unit in the embodiment of the present application;

[0055] Figure 14 Structure diagram of lead correction unit in the embodiment of the present application;

[0056] Figure 15 Structure diagram of part of lead correction module in the embodiment of the present application;

[0057] Figure 16 Structure diagram of small block carrying and placing unit in the embodiment of the present application;

[0058] Figures indicate:

[0059] 100 - photovoltaic module small block long strip placing device; 200 - photovoltaic module; 300 - long strip; 400 - small block;

[0060] 1 - conveying line, 11 - correction module;

[0061] 2-long strip placement unit, 21-long strip feeding mechanism, 211-first receiving platform, 212-long strip feeding module, 212A-first long strip feeding module, 212B-second long strip feeding module, 2121-unwinding module, 2122-bracket, 2123-detection assembly, 2121A-first unwinding module, 2121B-second unwinding module, 213-long strip pulling module, 2131-Y-axis driving module, 2132-first support plate, 2133-pulling jaw assembly, 2133A-first pulling jaw assembly, 2133B-second pulling jaw assembly, 21331-jaw assembly, 214-long strip cutting module, 2141-first X-axis driving module, 2142-third support plate, 2143-first air cylinder, 2144-cutter, 215-pressing module, 2151-first Z-axis driving module, 2152-second support plate, 2153-pressing module, 2153A-first pressing module, 2153B-second pressing module, 21531-supporting bottom plate, 21532-pressing cylinder, 21533-pressing block, 216-hot melting assembly, 216A-first hot melting assembly, 216B-second hot melting assembly, 22-long strip conveying mechanism, 221-first camera, 222-XYZ driving module, 223-first motor, 224-fourth support plate, 225-first suction nozzle module, 23-long strip spot welding mechanism, 231-second air cylinder, 232-fifth support plate, 233-third air cylinder, 234-first support beam, 235-spot welding assembly, 2351-sixth support plate, 2352-spot welding head, 2353-floating pressing plate;

[0062] 3-small block feeding unit, 31-small block conveying line, 32-first small block feeding module, 321-small block feeding module, 322-small block tape buffer module, 323-punching module, 324-feeding module, 325-small block cutting module, 326-second receiving platform, 327-third hot melting assembly, 33-second small block feeding module, 34-small block feeding and conveying module, 341-second X-axis driving module, 342-seventh support plate, 343-suction assembly, 3431-fourth air cylinder, 3432-second suction nozzle module, 35-third camera;

[0063] 4-vision positioning unit, 41-second support beam, 42-second camera, 43-light source;

[0064] 5-lead straightening unit, 51-third support beam, 52-second Z-axis drive module, 53-fourth support beam, 54-lead straightening module, 541-second motor, 542-eighth support plate, 543-horizontal support plate, 5431-straightening operation window, 544-first straightening module, 5441-fifth cylinder, 5442-straightening fork plate, 54421-lead limiting groove, 545-second straightening module, 546-third pressing module, 5461-sixth cylinder, 5462-pressing plate, 547-fourth pressing module, 55-first rack, 56-first drive gear;

[0065] 6-small block carrying and placing unit, 61-YZ drive module, 62-fifth support beam, 63-small block suction module, 631-third motor, 632-ninth support plate, 633-seventh cylinder, 634-third suction nozzle module, 64-second rack, 65-second drive gear;

[0066] 7-gantry support, 71-slideway. DETAILED DESCRIPTION

[0067] Example one:

[0068] Please refer to Figures 1-16 The embodiment is a small block long strip placing device 100 for photovoltaic modules, which comprises a conveying line 1 for conveying photovoltaic modules 200 to an operation station, a long strip placing unit 2 located above the operation station on both sides in the X direction, a small block feeding unit 3 located on one side of the operation station in the Y direction, a visual positioning unit 4 located above the operation station and used for visually positioning the position of the lead on the photovoltaic module 200, a lead straightening unit 5 located above the operation station and used for straightening the position of the lead on the photovoltaic module 200 under the guidance of the visual positioning unit 4, and a small block carrying and placing unit 6 used for sucking small block materials from the small block feeding unit 3 and placing the small block materials at the position of the lead on the photovoltaic module 200.

[0069] The conveying line 1 is provided with a position correcting module 11 for correcting the position of the photovoltaic module 200.

[0070] The long strip placing unit 2 is used for feeding, pulling, cutting, suction carrying, position correction and accurate placing of the long strip 300. In the embodiment, the long strip placing unit 2 is provided with two groups, which are respectively located on both sides of the operation station in the X direction, so as to simultaneously place the long strip on both long side edges of the photovoltaic module 200, thereby improving the long strip placing efficiency. The long strip placing unit 2 specifically comprises a long strip feeding mechanism 21, a long strip carrying mechanism 22 and a long strip spot welding mechanism 23.

[0071] The long strip feeding mechanism 21 comprises a first receiving platform 211 extending along the Y direction, two groups of long strip feeding modules 212 arranged on both sides of the first receiving platform 211 along the Y direction, a long strip pulling module 213 for pulling out the long strip material head from the long strip feeding modules 212 and placing it on the first receiving platform 211, a long strip cutting module 214 for cutting the long strip material after it is pulled out to a set length, and a pressing module 215 for pressing the long strip material when the long strip cutting module 214 cuts the long strip material tail.

[0072] In this embodiment, the long strip material is supplied in a roll shape, and the long strip feeding module 212 can use a conventional unwinding mechanism. Since the long strip material needs to be placed along the long side of the photovoltaic module 200, its length is relatively long, which causes the following two problems:

[0073] 1) The long strip pulling module 213 clamps the long strip material head from the long strip feeding module 212, and then needs to travel a long path before pulling out the long strip to a set length. The pulling process is time-consuming. If the long strip pulling module 213 needs to return to the initial position to clamp the material after performing a pulling action, the long strip pulling module 213 will have a long path of empty running, and the invalid running time will be relatively long, and the utilization rate will be reduced.

[0074] 2) The length of the long strip material pulled out from a single roll of long strip material roll during a single feeding is relatively long, which leads to a relatively fast consumption of the single roll of long strip material roll, and further leads to the need for frequent replacement of the material roll by manual operation.

[0075] To solve the first technical problem, the long strip feeding module 212 in this embodiment is provided with two groups, i.e., a first long strip feeding module 212A and a second long strip feeding module 212B, which are respectively arranged on both sides of the first receiving platform 211 along the Y direction and alternately feed the long strip material. In cooperation, the long strip pulling module 213 comprises a Y-axis driving module 2131, a first support plate 2132 driven by the Y-axis driving module 2131 to move along the Y direction, and two groups of pulling jaw assemblies 2133 arranged on both ends of the first support plate 2132 along the Y direction. The two groups of pulling jaw assemblies are respectively a first pulling jaw assembly 2133A and a second pulling jaw assembly 2133B, which are respectively matched with the first long strip feeding module 212A and the second long strip feeding module 212B.

[0076] In use, the first support plate 2132 is located at the output side of the first long strip feeding module 212A. The first long strip feeding module 212A is clamped by the first pulling clamp jaw assembly 2133A at the output side of the long strip. Under the driving of the Y-axis driving module 2131, the first long strip feeding module 212A moves towards the second long strip feeding module 212B, and the long strip 300 is pulled out to a set length and placed on the first receiving platform 211, completing the first pulling operation. When the long strip on the first receiving platform 211 is taken away and the second pulling operation is needed, the Y-axis driving module 2131 drives the first support plate 2132 with the second pulling clamp jaw assembly 2133B to approach the second long strip feeding module 212B. The second long strip feeding module 212B is clamped by the second pulling clamp jaw assembly 2133B at the output side of the long strip. Under the driving of the Y-axis driving module 2131, the second long strip feeding module 212B moves towards the first long strip feeding module 212A, and the long strip 300 is pulled out to a set length and placed on the first receiving platform 211, completing the second pulling operation. Through the cooperation of the first long strip feeding module 212A, the second long strip feeding module 212B, and the first pulling clamp jaw assembly 2133A and the second pulling clamp jaw assembly 2133B, the problem of low utilization of the long strip pulling module 213 caused by the return empty running of the long strip pulling module 213 is effectively solved. Compared with the pulling clamp jaw assembly 2133 performing a pulling operation twice, the pulling efficiency and the pulling rhythm are improved, which can meet the production demand of high rhythm.

[0077] Since the first long strip feeding module 212A and the second long strip feeding module 212B are alternately matched for feeding, when the long strip roll in one of the long strip feeding modules 212 is used up, the roll needs to be replaced in time, otherwise the long strip feeding module 212 on that side cannot feed, resulting in the phenomenon of return empty running of the long strip pulling module 213, reducing the pulling efficiency. In order to avoid this phenomenon, the first long strip feeding module 212A and the second long strip feeding module 212B in the embodiment are both provided with a unwinding module 2121. The unwinding module 2121 is provided with two groups, which are the first unwinding module 2121A and the second unwinding module 2121B. When the roll on the first unwinding module 2121A is used up, the second unwinding module 2121B can immediately supplement the unwinding and feeding to realize continuous feeding without interruption.

[0078] In order to solve the above-mentioned second technical problem, in the embodiment, the first unwinding module 2121A and the second unwinding module 2121B are both provided with a plurality of unwinding positions, which carry a plurality of long strip rolls and output a plurality of long strips 300. Correspondingly, each group of pulling clamp jaw assemblies 2133 is provided with a plurality of clamp jaw assemblies 21331, which can clamp the heads of a plurality of long strips 300 for pulling. The number of unwinding positions is consistent with the number of clamp jaw assemblies 21331 in the same group of pulling clamp jaw assemblies 2133.

[0079] Through the arrangement of multiple unwinding positions and multiple clamping jaw assemblies 21331, a single pulling action can simultaneously pull out multiple long strips 300, thereby reducing the execution frequency of the pulling action, and thus more time is available for a single pulling action, effectively solving the problem of rhythm bottleneck. At the same time, the frequency of long strip roll replacement is also reduced, so that the worker does not have to be beside the equipment all the time, and the time of the material replacement operator can be effectively liberated, so that the material replacement operator can handle more other things at the same time, and the utilization rate of labor is improved.

[0080] The first long strip feeding module 212A and the second long strip feeding module 212B are the same in structure, and each includes a support 2122, and a first unwinding module 2121A and a second unwinding module 2121B are arranged in an up-down distribution form on the support 2122. The support 2122 is also provided with a detection assembly 2123 for monitoring whether the long strip roll in each unwinding position of the unwinding module 2121 needs to be replaced. The detection assembly 2123 is provided with two groups, respectively cooperating with the two unwinding modules 2121.

[0081] In order to further realize the seamless connection of the two unwinding modules 2121, the structure of the long strip feeding mechanism 21 is optimized and designed. Specifically, the long strip feeding mechanism 21 further includes a hot melting assembly 216 arranged on the support 2122 and located at the output side of the unwinding module 2121. The hot melting assembly 216 is provided with two, which are a first hot melting assembly 216A and a second hot melting assembly 216B. The first hot melting assembly 216A is located at the output side of the first unwinding module 2121A; and the second hot melting assembly 216B is located at the output side of the second unwinding module 2121B. Through the arrangement of the hot melting assembly 216, the tail end of the long strip tape output by the old roll can be hot melted and bonded with the head end of the long strip tape output by the new roll, which saves the manual threading process and improves the flexibility of the operator's replacement tape time.

[0082] The long strip cutting module 214 and the pressing module 215 are correspondingly provided with two groups, respectively cooperating with the two long strip feeding modules 212. The long strip feeding module 212, the hot melting assembly 216, the pressing module 215, the long strip cutting module 214 and the long strip pulling module 213 are sequentially arranged along the long strip tape conveying direction.

[0083] The pressing die module 215 includes a first Z-axis driving module 2151, a second support plate 2152 driven by the first Z-axis driving module 2151 to move up and down, and a pressing die module 2153 fixed on the second support plate 2152. In the embodiment, the pressing die module 2153 is provided with two groups, i.e., a first pressing die module 2153A and a second pressing die module 2153B, which are used in cooperation with two unwinding modules 2121. The two pressing die modules 2153 are arranged in layers from top to bottom, and the corresponding pressing die modules 2153 are driven by the first Z-axis driving module 2151 to be lifted to the height adapted to the first material receiving platform 211. The first pressing die module 2153A and the second pressing die module 2153B each include a support bottom plate 21531 for bearing the long strip material, a plurality of pressing air cylinders 21532 arranged above the support bottom plate 21531 and in the X direction, and a pressing block 21533 driven by the pressing air cylinder 21532 to move up and down and press the long strip material on the support bottom plate 21531. Each pressing block 21533 is provided with one pressing air cylinder 21532, and the number of the pressing air cylinders 21532 is consistent with the number of the unwinding positions in the unwinding module 2121, so as to press each long strip material drawn out at one time.

[0084] In the embodiment, the long strip cutting module 214 includes a first X-axis driving module 2141, a third support plate 2142 driven by the first X-axis driving module 2141 to move in the X direction, a first air cylinder 2143 fixed on the third support plate 2142, and a cutter 2144 driven by the first air cylinder 2143 to move up and down. The cutter 2144 is driven by the first X-axis driving module 2141 to move to the above of the corresponding long strip material, and the long strip material is cut by the cutter 2144 driven by the first air cylinder 2143.

[0085] The long strip 300 is placed on the photovoltaic module 200 at a designated position as required, and subsequent processes such as laminating and edge sealing will be performed. In order to ensure the overall flatness of the photovoltaic module, the uniformity of the glue layer thickness between the double-layer glass is required to be high, and therefore the placement position and posture of the long strip 300 are also required to be high, and the long strip 300 cannot be placed obliquely on the photovoltaic module 200. In order to meet the above placement requirements of the long strip, the long strip conveying mechanism 22 is optimized and designed in the embodiment. Specifically, the long strip conveying mechanism 22 includes a first camera 221 for taking a picture of one end of the long strip 300 on the first material receiving platform 211, an XYZ driving module 222, a first motor 223 arranged at the active end of the XYZ driving module 222, a fourth support plate 224 driven to rotate around the Z axis by the first motor 223, and a first suction nozzle module 225 mounted on the fourth support plate 224. The XYZ driving module 222 and the first motor 223 are driven according to the position information of the two ends of the long strip obtained by the first camera 221, so that the first suction nozzle module 225 can suck the long strip 300 with a set position (for example, the first suction nozzle module 225 always sucks in the middle region of the long strip 300) and posture relative to the long strip.

[0086] Since there are various size specifications of the photovoltaic module, the length of the long strip 300 also needs to be adjusted according to the long side size of the photovoltaic module. When the length of the long strip 300 changes, the length of the long strip pulled out by the long strip pulling module 213 will also change. Therefore, after the long strip 300 is pulled out and cut, it is placed on the first receiving platform 211, and the position of the head end is fixed, while the position of the tail end is not fixed and changes with the change of the length of the long strip. In the embodiment, the head end (the end clamped by the long strip pulling module 213 is the head end) and the tail end (the end cut by the long strip cutting module 214 is the tail end) of the long strip 300 pulled out from different long strip feeding modules 212 are just opposite to each other. Therefore, in order to more accurately obtain the position of the end of each long strip 300, two groups of first cameras 221 are arranged above the two ends of the first receiving platform 211Y, and the two first cameras 221 respectively take photos of the tail end of the long strip 300 pulled out from the first long strip feeding module 212A and the second long strip feeding module 212B. Therefore, no matter how the length of the long strip 300 changes, the first camera 221 can obtain the position information of the tail end of the long strip 300. When the long strip conveying mechanism 22 sucks the long strip, the side position of the tail end of the long strip can be taken as a reference to determine the end position of the long strip, and the length information of the long strip can be used to determine the end position of the other end of the long strip, so as to guide the XYZ driving module 222 to adjust the position of the first suction nozzle module 225; and the two right angle positions of the tail end of the long strip can be taken as a reference to determine the horizontal deflection angle of the long strip, so as to guide the first motor 223 to adjust the posture of the first suction nozzle module 225; and then the first suction nozzle module 225 can be ensured to suck the long strip 300 at a set position and posture, and then the long strip 300 can be accurately placed.

[0087] After the long strip 300 is placed on the photovoltaic module 200, the position of the long strip 300 needs to be fixed to prevent displacement during the movement of the photovoltaic module 200. Therefore, the long strip spot welding mechanism 23 is used to spot weld and fix the long strip 300 placed on the photovoltaic module 200. The long strip spot welding mechanism 23 includes a second air cylinder 231, a fifth support plate 232 driven by the second air cylinder 231 to move along the X direction, a third air cylinder 233 fixed on the fifth support plate 232, a first support beam 234 driven by the third air cylinder 233 to move up and down and extending along the Y direction, and a plurality of spot welding assemblies 235 arranged on the first support beam 234 along the Y direction. The second air cylinder 231 drives the fifth support plate 232 to move along the X direction, so that the plurality of spot welding assemblies 235 switch positions between a working position and a avoiding position, and in the avoiding position, the long strip conveying mechanism 22 sucks and places the long strip 300.

[0088] In order to prevent the position of the long strip from deviating during the long strip spot welding operation, the spot welding assembly 235 includes a sixth support plate 2351 fixed on the first support beam 234, a spot welding head 2352 fixed on the sixth support plate 2351, and a floating pressing plate 2353 elastically floating up and down on the sixth support plate 2351 and located below the spot welding head 2352. In operation, the floating pressing plate 2353 first contacts the long strip 300, and as the first support beam 234 continues to descend, the spot welding head 2352 contacts the long strip 300 to weld and fix it on the photovoltaic module 200. In this process, the long strip 300 is pressed by the floating pressing plate 2353 to effectively ensure that the position of the long strip 300 is stable and does not deviate.

[0089] The small block feeding unit 3 can adopt the structure shown in the prior art patent CN218802804U.

[0090] In order to realize continuous and uninterrupted feeding of the small blocks 400, the small block feeding unit 3 is structurally optimized and designed in this embodiment. Specifically, the small block feeding unit 3 includes a small block conveying line 31 conveying the small blocks 400 along the Y direction, a first small block feeding module 32 and a second small block feeding module 33 located on both sides of the end of the small block conveying line 31 in the X direction, a small block feeding and carrying module 34 sucking the small blocks 400 from the first small block feeding module 32 and the second small block feeding module 33 and placing them onto the small block conveying line 31, and a third camera 35 located above the end of the small block conveying line 31. The first small block feeding module 32 and the second small block feeding module 33 can alternately feed the small blocks to realize continuous and uninterrupted feeding.

[0091] The first small block feeding module 32 and the second small block feeding module 33 are structurally identical and each include a small block feeding module 321, a small block tape buffer module 322, a punching module 323, a feeding module 324, and a small block cutting module 325 arranged in sequence along the conveying direction of the small block tape, and a second material receiving platform 326 arranged on the output side of the small block cutting module 325. The small block feeding module 321 adopts a driven unwinding mode, which cooperates with the small block tape buffer module 322 to prevent the feeding module 324 from failing to roll feed and to ensure effective conveying of the small block tape. The small block feeding module 321 is located above the space of the other modules to reduce the overall area occupied by the small block feeding module. In order to facilitate the operator to quickly change the roll and avoid the cumbersome threading operation each time the roll is changed, a third hot melting assembly 327 is arranged between the small block feeding module 321 and the small block tape buffer module 322 to facilitate the operator to quickly hot melt and bond the tail end of the small block tape of the old roll with the head end of the small block tape of the new roll, thereby saving the threading process and improving the convenience and efficiency of the roll changing operation.

[0092] The small piece loading and carrying module 34 comprises a second X-axis driving module 341, a seventh support plate 342 driven to move along the X direction by the second X-axis driving module 341, and two groups of adsorption assemblies 343 fixed on the seventh support plate 342 and symmetrically arranged with the Y axis as the axis of symmetry. The adsorption assembly 343 comprises a fourth cylinder 3431 fixed on the seventh support plate 342 and a second suction nozzle module 3432 driven by the fourth cylinder 3431 to move up and down. The two groups of adsorption assemblies 343 respectively adsorb the small pieces 400 output by the first small piece feeding module 32 and the second small piece feeding module 33.

[0093] The visual positioning unit 4 comprises a second support beam 41, a plurality of second cameras 42 arranged at intervals along the X direction on the second support beam 41, and a light source 43 for illuminating a specified area on the photovoltaic module 200. In the embodiment, the second camera 42 is provided with three, which are respectively aligned with the positions of the three lead wires on the photovoltaic module 200.

[0094] The lead wire correcting unit 5 comprises a third support beam 51, a second Z-axis driving module 52 fixed on the third support beam 51, a fourth support beam 53 driven by the second Z-axis driving module 52 to move up and down, and a plurality of lead wire correcting modules 54 movably arranged along the X direction on the fourth support beam 53. In the embodiment, the lead wire correcting module 54 is provided with three, which are respectively used for the three lead wire positions on the photovoltaic module 200. The lead wire correcting module 54 comprises a second motor 541, an eighth support plate 542 driven by the second motor 541 to move along the X direction, a horizontal support plate 543 fixed at the bottom end of the eighth support plate 542 and provided with a correcting operation window 5431 in the middle, a first straightening module 544 and a second straightening module 545 arranged on the horizontal support plate 543 and located on the Y direction both sides of the correcting operation window 5431, and a third pressing module 546 and a fourth pressing module 547 arranged on the horizontal support plate 543 and located on the X direction both sides of the correcting operation window 5431. The fourth support beam 53 is provided with a first rack 55 extending along the X direction, and the second motor 541 is fixed on the eighth support plate 542 and provided with a first driving gear 56 engaged with the first rack 55.

[0095] The first straightening module 544 and the second straightening module 545 are the same in structure and each comprise a fifth cylinder 5441 fixed on the horizontal support plate 543 and a correcting fork plate 5442 driven by the fifth cylinder 5441 to move along the Y direction. The free end of the correcting fork plate 5442 is provided with a lead wire limiting groove 54421, and when the two correcting fork plates 5442 in the first straightening module 544 and the second straightening module 545 are close to each other, they are stacked together up and down, and the lead wire is constrained at the set position by the lead wire limiting groove 54421.

[0096] The third pressing die set 546 and the fourth pressing die set 547 are the same in structure and each include a sixth cylinder 5461 fixed on the horizontal support plate 543 and a pressing plate 5462 driven by the sixth cylinder 5461 to move along the X direction. The third pressing die set 546 and the fourth pressing die set 547 are respectively used to press the root of the two lead bends at the same position. If the lead bend root is not pressed by the pressing plate 5462, the lead is easily pushed by the lateral constraint force of the correction fork plate 5442 when the correction fork plate 5442 corrects the lead position, which causes the battery string to be displaced. By arranging the third pressing die set 546 and the fourth pressing die set 547, the problem that the battery string is displaced due to the lead being pushed by the correction fork plate 5442 when the correction fork plate 5442 corrects the lead position can be effectively prevented, and the electrical connection of the battery string is affected.

[0097] The small block carrying and placing unit 6 includes a YZ driving module 61, a fifth support beam 62 arranged at the active end of the YZ driving module 61, and a plurality of small block suction modules 63 arranged on the fifth support beam 62 and movable along the X direction. In this embodiment, the small block suction modules 63 are arranged in three groups, which simultaneously realize the suction, carrying and placing of three small blocks 400. The small block suction module 63 includes a third motor 631, a ninth support plate 632 driven by the third motor 631 to move along the X direction, a seventh cylinder 633 fixed on the ninth support plate 632, and a third suction nozzle module 634 driven by the seventh cylinder 633 to move up and down. The fifth support beam 62 is provided with a second rack 64 extending along the X direction, and the third motor 631 is fixed on the ninth support plate 632 and has a second driving gear 65 arranged at the active end and engaged with the second rack 64.

[0098] In order to be suitable for various specifications of photovoltaic modules, in this embodiment, the visual positioning unit 4 and the lead correction unit 5 are adjustably arranged along the Y direction on a gantry support 7. Specifically, the gantry support 7 is provided with a slide rail 71 extending along the Y direction, and the second support beam 41 and the third support beam 51 are slidingly arranged on the slide rail 71 and locked and fixed by a fixing member after being adjusted to the position.

[0099] The working method of the small block and long strip placing device for photovoltaic modules in this embodiment includes the following steps:

[0100] S1, the photovoltaic module 200 is conveyed to the operation station by the conveying line 1, and the position of the photovoltaic module 200 around is corrected by the position correction module 11;

[0101] S2, a long strip 300 is placed at the set position on each of the two long sides of the photovoltaic module 200:

[0102] S21, the long strip pulling module 213 pulls out multiple long strips from the long strip feeding module 212 to a set length, and then places them on the first receiving platform 211. The long strip cutting module 214 cuts the tail end of the long strip, and obtains the long strip 300;

[0103] S22, the first camera 221 takes a photo of the tail end of the long strip 300 on the first receiving platform 211, and obtains first pose information;

[0104] S23, the long strip conveying mechanism 22 adjusts the pose of the first suction nozzle module 225 according to the first pose information, so as to set the requirement of sucking the long strip 300 on the first receiving platform 211. In the embodiment, the first suction nozzle module 225 is provided with two groups, which can suck two long strips 300 at a time; in other embodiments, multiple groups can also be provided;

[0105] S24, the long strip conveying mechanism 22 sucks and moves the long strip 300 to above the photovoltaic module 200, and places the long strip 300 at a specified position on the photovoltaic module 200;

[0106] S25, the long strip spot welding mechanism 23 moves to the working position, and welds and fixes the long strip 300 on the photovoltaic module 200, and completes the long strip placement;

[0107] S3, small block feeding and sucking, which is executed synchronously with step S2, comprising:

[0108] S31, the small block feeding unit 3 outputs the small block 400 punched with a small hole to the small block conveying line 31, and conveys it to the end through the small block conveying line 31;

[0109] S32, the third camera 35 takes a photo of multiple small blocks 400 at the end of the small block conveying line 31, and obtains second pose information;

[0110] S33, the small block conveying and placing unit 6 sucks three small blocks 400 at the end of the small block conveying line 31 according to the second pose information, and completes the small block feeding and sucking;

[0111] S4, lead wire correction, which is executed synchronously with step S3, comprising:

[0112] S41, the visual positioning unit 4 obtains the position of the lead wire on the photovoltaic module 200;

[0113] S42, the lead wire correction unit 5 corrects the position of the lead wire according to the lead wire position information;

[0114] S5, the small block conveying and placing unit 6 sucks and places the small block 400 to the lead wire, the lead wire passes through the perforation on the small block 400, and the small block 400 falls to the root of the lead wire bending, and the small block placement is completed.

[0115] As for a person skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A photovoltaic module small piece long strip placement apparatus, characterized by, It comprises: A conveying line for conveying photovoltaic modules to an operating station; A long strip placing unit provided with two groups of long strip feeding mechanisms respectively located on both sides of the operating station in the X direction, and comprising a long strip feeding mechanism for supplying long strips to a first receiving platform, a long strip carrying mechanism for sucking long strips from the first receiving platform and placing them on photovoltaic modules, and a long strip spot welding mechanism for welding and fixing long strips on photovoltaic modules; A small piece feeding unit for supplying small pieces and located on one side of the operating station in the Y direction; A visual positioning unit located above the operating station for visually positioning the position of the lead wire on the photovoltaic module; A lead wire correcting unit located above the operating station for correcting the position of the lead wire on the photovoltaic module under the guidance of the visual positioning unit; A small piece carrying and placing unit for sucking small pieces from the small piece feeding unit and placing them at the lead wire position of the photovoltaic module.

2. The photovoltaic module small piece long strip placement apparatus according to claim 1, wherein The long strip feeding mechanism comprises the first receiving platform extending along the Y direction, two groups of long strip feeding modules provided on both sides of the first receiving platform in the Y direction, a long strip pulling module for clamping the head of long strip material from the long strip feeding module and pulling it out along the Y direction and placing it on the first receiving platform, a long strip cutting module for cutting the long strip material at the output side of the long strip feeding module after the long strip material is pulled out to a set length, and a pressing module for pressing the long strip material when the long strip cutting module cuts the tail of the long strip material. The long strip cutting module and the pressing module are correspondingly provided with two groups, respectively matched with two groups of long strip feeding modules.

3. The photovoltaic module minitablet placement apparatus of claim 2, wherein, The two groups of long strip feeding modules are respectively a first long strip feeding module and a second long strip feeding module; the long strip pulling module comprises a Y-axis drive module, a first support plate driven by the Y-axis drive module to move along the Y direction, and two groups of pulling jaw assemblies provided on both ends of the first support plate in the Y direction; the two groups of pulling jaw assemblies are respectively a first pulling jaw assembly and a second pulling jaw assembly, respectively matched with the first long strip feeding module and the second long strip feeding module.

4. The photovoltaic module minitable long strip placement apparatus according to claim 3, wherein, The long strip feeding module comprises a support and a unwinding module provided on the support, the unwinding module is provided with two groups, which alternately unwind and feed; the unwinding module is provided with a plurality of unwinding positions, which simultaneously output a plurality of long strips; the pulling jaw assembly is provided with a plurality of jaw assemblies corresponding to the unwinding positions.

5. The photovoltaic module minitable long strip placement apparatus according to claim 4, wherein, The pressing module comprises a first Z-axis drive module, a second support plate driven by the first Z-axis drive module to move up and down, and a pressing module fixed on the second support plate; the pressing module is provided with two groups, respectively matched with two groups of unwinding modules; the two groups of pressing modules are arranged in layers above and below, and are lifted to the height matched with the first receiving platform under the drive of the first Z-axis drive module.

6. The photovoltaic module small piece long strip placement apparatus according to claim 2, wherein The long strip cutting module comprises a first X-axis drive module, a third support plate driven by the first X-axis drive module to move along the X direction, a first cylinder fixed on the third support plate, and a cutter driven by the first cylinder to move up and down.

7. The photovoltaic module minitablet placement apparatus of claim 1, wherein, The long strip conveying mechanism comprises a first camera for taking a picture of one end of the long strip on the first receiving platform, an XYZ driving module, a first motor arranged at the active end of the XYZ driving module, a fourth support plate driven by the first motor to rotate around the Z axis, and a first suction nozzle module mounted on the fourth support plate; the first camera is provided with two groups, respectively located above the two ends of the first receiving platform in the Y direction; the position information of the tail end of the long strip is obtained through the first camera, and when the long strip conveying mechanism sucks the long strip, the side edge position of the tail end of the long strip is taken as the reference to determine the position of the tail end of the long strip, and the length information of the long strip is used to determine the position of the head end of the long strip, so as to guide the XYZ driving module to adjust the position; the two right angle positions of the tail end of the long strip are taken as the reference to determine the horizontal deflection angle of the long strip, so as to guide the first motor to adjust the posture.

8. The photovoltaic module minitable long strip placement apparatus of claim 1, wherein, The long strip spot welding mechanism comprises a second cylinder, a fifth support plate driven by the second cylinder to move in the X direction, a third cylinder fixed on the fifth support plate, a first support beam driven by the third cylinder to move up and down and extending in the Y direction, and a plurality of spot welding assemblies arranged in the Y direction on the first support beam; the spot welding assembly comprises a sixth support plate fixed on the first support beam, a spot welding head fixed on the sixth support plate, and a floating pressure plate elastically floating up and down on the sixth support plate and located below the spot welding head.

9. The photovoltaic module minitablet placement apparatus of claim 1, wherein, The small block feeding unit comprises a small block conveying line for conveying small blocks in the Y direction, a first small block feeding module and a second small block feeding module located on both sides of the end of the small block conveying line in the X direction, a small block feeding and conveying module for placing small blocks on the small block conveying line, and a third camera located above the end of the small block conveying line.

10. The photovoltaic module minitable long strip placement apparatus of claim 9, wherein, The first small block feeding module and the second small block feeding module each comprise a small block feeding module, a small block tape buffer module, a punching module, a feeding module and a small block cutting module arranged in sequence along the conveying direction of the small block tape, and a second receiving platform arranged on the output side of the small block cutting module; the small block feeding and conveying module comprises a second X-axis driving module, a seventh support plate driven by the second X-axis driving module to move in the X direction, and two groups of suction assemblies symmetrically arranged with the Y axis as the symmetry axis and fixed on the seventh support plate; the two groups of suction assemblies are respectively matched with the first small block feeding module and the second small block feeding module; the suction assembly comprises a fourth cylinder fixed on the seventh support plate and a second suction nozzle module driven by the fourth cylinder to move up and down.

11. The photovoltaic module minitablet placement apparatus of claim 1, wherein, The visual positioning unit comprises a second support beam and a plurality of second cameras arranged on the second support beam at intervals in the X direction; the lead wire correction unit comprises a third support beam, a second Z-axis driving module fixed on the third support beam, a fourth support beam driven by the second Z-axis driving module to move up and down, and a plurality of lead wire correction modules movably arranged on the fourth support beam in the X direction; the second support beam and the third support beam are movably arranged in the Y direction on a gantry frame; The small piece carrying and placing unit comprises a YZ driving module, a fifth support beam arranged at the movable end of the YZ driving module, and a plurality of small piece suction modules movably arranged on the fifth support beam in the X direction; the small piece suction module comprises a third motor, a ninth support plate driven by the third motor to move in the X direction, a seventh cylinder fixed on the ninth support plate, and a third suction nozzle module driven by the seventh cylinder to move up and down.

12. A method for placing small strips of photovoltaic modules, characterized in that, The small piece long strip placing device based on claim 2 is realized, comprising the following steps: S1, the photovoltaic module is conveyed to the operation station through the conveying line, and the position of the photovoltaic module is corrected; S2, a long strip is placed at the set position on both long sides of the photovoltaic module: S21, the long strip pulling module pulls out a plurality of long strips from the long strip feeding module to a set length, and then places them on the first receiving platform; the long strip cutting module cuts the tail end of the long strip, and obtains a long strip; S22, the first camera takes a photo of the tail end of the long strip on the first receiving platform, and obtains first pose information; S23, the long strip carrying mechanism adjusts the pose of the first suction nozzle module of the long strip carrying mechanism according to the first pose information, so as to set the requirement of sucking the long strip on the first receiving platform; S24, the long strip carrying mechanism moves to the position above the photovoltaic module, and places the long strip at the designated position on the photovoltaic module; S25, the long strip spot welding mechanism moves to the working position, and welds the long strip on the photovoltaic module, completing the long strip placing; S3, small piece feeding and sucking: synchronously executed with step S2, the small piece feeding unit supplies small pieces, and the small piece carrying and placing unit sucks and moves the small pieces to the position above the lead wire of the photovoltaic module, completing the small piece feeding and sucking; S4, lead wire correction: synchronously executed with step S3, the visual positioning unit obtains the position of the lead wire on the photovoltaic module; the lead wire correction unit corrects the position of the lead wire according to the lead wire position information; S5, the small piece carrying and placing unit sucks and places the small piece to the lead wire, the lead wire passes through the perforation on the small piece, and the small piece falls to the root of the lead wire bending, completing the small piece placing.

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