Feeding system of photovoltaic module series welding machine

Abstract

The invention discloses a feeding system of a photovoltaic module series welding machine. The feeding system comprises a battery piece tray storage system and an auxiliary feeding system. The battery piece tray storage system and the auxiliary feeding system are both fixedly installed on the support. The battery piece tray storage system is used for storing trays loaded with battery pieces and supplying the battery pieces in the trays to the auxiliary feeding system to be grabbed. The auxiliary feeding system is used for intermittently grabbing the battery pieces and supplying the battery pieces to the battery piece caching and arranging system; the battery piece caching and sorting system caches and sorts the battery pieces and conveys the battery pieces to the series welding machine conveying line; the auxiliary feeding system is adopted for feeding a plurality of battery pieces to the battery piece caching and arranging system at a time, and after the battery pieces are arranged and cached by the battery piece caching and arranging system, the battery pieces are conveyed to the series welding machine conveying line to be subjected to series welding operation.

Description

Technical Field

[0001] The invention relates to the field of photovoltaic production equipment, in particular to a feeding system for a photovoltaic component string welding machine. Background Art

[0002] The production of photovoltaic modules is a very complex process, which mainly includes silicon wafer production, silicon wafer processing, dry film coating, cell production, module processing and module testing. In the whole production process, the string welding process is one of the key links in the production of modules, and the quality directly affects its overall performance; the working principle of the photovoltaic module string welding machine is to connect the cells through the welding head to form a battery pack, and then connect the battery pack with other battery packs to form a complete photovoltaic module.

[0003] In the prior art, the cell panels of the photovoltaic module stringer are generally fed directly by a conveyor belt. In order to ensure that there is enough stock of cell panels on the conveyor belt of the stringer to ensure the continuity of the operation, the conveyor belt needs to be long enough or the cell panels need to be fed to the conveyor belt continuously.

[0004] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Summary of the invention

[0005] The purpose of the present invention is to provide a feeding system for a photovoltaic module string welding machine to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The feeding system of photovoltaic module string welding machine includes the battery sheet tray storage system and auxiliary feeding system;

[0008] The battery sheet tray storage system and the auxiliary feeding system are both fixedly mounted on the bracket;

[0009] The battery cell tray storage system is used to store trays loaded with battery cells and supply the battery cells in the trays to the auxiliary feeding system for grabbing;

[0010] The auxiliary feeding system is used to intermittently grab the battery cells and supply them to the battery cell buffer sorting system;

[0011] The battery cell buffering and sorting system sorts the battery cells and transports the battery cells to the stringing machine conveyor line;

[0012] The bracket includes a bottom frame and a side frame, wherein the side frame is located at the rear side of the bottom frame and is arranged perpendicularly thereto; at the same time, a front column is arranged at the top front end of the bottom frame, and a top frame is arranged at the top of the front column;

[0013] The battery sheet tray storage system includes a tray batch lifting device and a tray batch feeding device, and the battery sheet tray storage system is located at the front end of the side frame;

[0014] The tray batch lifting device is provided with two groups, one group of tray batch lifting devices on the right side of the bracket is used to lift the trays and supply them to the auxiliary feeding system for grabbing; the other group of tray batch lifting devices on the left side of the bracket is used to store the trays after unloading;

[0015] The tray batch feeding device is used to transport batches of trays to the tray batch lifting device; the tray batch feeding device is fixedly installed on the front right side of the bottom frame, and the tray batch feeding device is located at the front end of the tray batch lifting device; the tray batch feeding device includes a group of pneumatic slides and a tray holding table installed on the slide of the pneumatic slide, a first cylinder mounting plate is fixedly installed on the top of the slide of the pneumatic slide, a first lifting cylinder is vertically fixedly installed at the top center of the first cylinder mounting plate, and a tray holding table is fixedly installed on the output shaft of the first lifting cylinder;

[0016] The battery cell tray storage system also includes a set of tray unloading devices, which are mainly used to transfer the trays with battery cells removed from the tray batch lifting device on the right side of the bracket to the tray batch lifting device on the left side of the bracket; the tray unloading device includes an unloading linear module, an unloading suction cup bracket and an unloading vacuum suction cup; the unloading linear module is fixedly installed on the rear side of the first module bracket along the left and right directions, the first module bracket is fixedly installed on the top of the top frame, and the unloading suction cup bracket is fixedly installed on the slide of the unloading linear module; a total of four unloading vacuum suction cups are provided in a rectangular array and installed on the unloading suction cup bracket;

[0017] The auxiliary loading system comprises an auxiliary loading linear module, an auxiliary loading suction cup bracket and an auxiliary loading vacuum suction cup; the auxiliary loading linear module is fixedly mounted on the rear side of the second module bracket along the front-back direction, and the second module bracket is fixedly mounted on the top of the connecting beam between the side frame and the top frame; the auxiliary loading suction cup bracket is fixedly mounted on the slide of the auxiliary loading linear module; a plurality of auxiliary loading vacuum suction cups are provided, and the plurality of auxiliary loading vacuum suction cups are evenly spaced and arranged on the auxiliary loading suction cup bracket;

[0018] The battery cell buffering and sorting system includes a buffering conveyor line arranged in parallel with the stringing machine conveyor line, and also includes a circulating feeding device arranged between the stringing machine conveyor line and the buffering conveyor line; a battery cell guide frame is arranged on the top of the buffering conveyor line, which is used to guide the moving battery cells on the buffering conveyor line so that the battery cells move in an orderly manner; wherein a battery cell guide groove is opened in the middle of the battery cell guide frame along the left and right directions, and the right end of the battery cell guide groove is opened as a whole, so that the battery cells between the two battery cell guide frames are guided to the middle of the buffering conveyor line when they contact the open right end of the battery cell guide groove, and at the same time, a first stop plate is also arranged at the left end of the battery cell guide groove, and the battery cell stops moving when it contacts the first stop plate; the left end side of the battery cell guide frame A first guide groove is provided along the front and rear sides, wherein a first guide plate is provided at the rear side of the first guide groove, a second guide groove is provided at the top of the first guide plate, and the first guide groove and the second guide groove are arranged in alignment; a first pushing mechanism is also provided at the front side of the left end of the battery sheet guide frame, and the first pushing mechanism is used to push the battery sheet contacting the first stop plate backward along the first guide groove and the second guide groove at the rear side of the battery sheet guide frame; the first pushing mechanism comprises a first electric push rod and a first push piece block, the first electric push rod is fixedly mounted on the side of the cache conveyor line, the output shaft end of the first electric push rod is fixedly connected to the first push piece block, and the first push piece block is located in the first guide groove at the front end of the battery sheet guide frame; when the first electric push rod is extended, the first push piece block pushes the battery sheet to move to the rear side of the second guide groove;

[0019] The circulating feeding device comprises a circulating feeding bracket and a circulating feeding belt fixedly installed thereon, a driving pulley and a driven pulley are respectively arranged at the lower end and the top end of the circulating feeding bracket, and the circulating feeding belt is transmission-connected between the driving pulley and the driven pulley; a circulating feeding motor is also arranged on one side of the circulating feeding bracket, and the circulating feeding motor drives the driving pulley to drive the circulating feeding belt to move; a plurality of battery cell supporting plates are evenly spaced and installed on the circulating feeding belt; a plurality of supporting plate mounting seats are evenly spaced and installed on the circulating feeding belt, and one side of the battery cell supporting plate is fixedly connected to the supporting plate mounting seat by screws; at the same time, A second pushing mechanism is also provided on the top; the second pushing mechanism pushes the battery cell transported to the same height as the circulating feeding device along the third guide frame to the conveying line of the stringing machine; the second pushing mechanism includes a second electric push rod and a second push piece block, the second electric push rod is fixedly installed at the front end of the circulating feeding bracket, and the end of the output shaft of the second electric push rod is fixedly connected to the second push piece block; at the same time, a third guide frame is also provided on the rear side of the top of the circulating feeding bracket, and a third guide groove is provided on the top of the third guide frame, and when the second electric push rod is extended, the second push piece block pushes the battery cell to move to the rear side of the second guide groove; at the same time, the third guide frame extends to the conveying line of the stringing machine.

[0020] Furthermore, the batch lifting device for material trays includes a lifting guide rail, which is provided with two groups and arranged parallel to each other, and the lifting guide rail is fixedly installed on the side frame; the front end of the lifting guide rail is slidably installed with a material tray bracket through a guide rail slider; the batch lifting device for material trays also includes a ball screw mechanism for driving the material tray bracket to lift and lower; the batch lifting device for material trays also includes a lifting drive motor, and the lifting drive motor drives the ball screw mechanism.

[0021] Furthermore, the tray bracket includes a bracket mounting plate and a tray support plate, two tray support plates are provided, and the two tray support plates are fixedly mounted on the left and right sides of the top of the front end of the bracket mounting plate; in the present embodiment, a reinforcing rib plate is also fixedly mounted between the bottom of the tray support plate and the front end of the bracket mounting plate to enhance the structural strength between the bracket mounting plate and the tray support plate.

[0022] Furthermore, the ball screw mechanism includes a ball screw and a screw nut. The ball screw is vertically fixed on the front end of the side frame through a bearing and a bearing seat. The ball screw is transmission-connected with a screw nut, and the screw nut is fixed on the rear side of the tray bracket through a nut seat. When the ball screw rotates, the tray bracket can be driven to move up and down through the nut seat.

[0023] Furthermore, the lifting drive motor is fixedly mounted on the bottom frame via a first motor bracket, and the lifting drive motor drives a ball screw connected to the ball screw mechanism via a first synchronous belt transmission mechanism.

[0024] Furthermore, the four corners of the bottom of the serving table are also vertically and downwardly fixedly connected with first guide shafts, and the first guide shafts are slidably connected to the four corners of the first cylinder mounting plate through linear bearings.

[0025] Furthermore, a tray guide seat is provided on the periphery of the tray batch lifting device, and the tray guide seat is fixedly installed on the bottom frame; wherein the tray guide seat is provided on the rear side and left and right sides of the tray batch lifting device on the right side of the bracket, and the tray guide seat is provided on the front and back sides and right side of the tray batch lifting device on the left side of the bracket; the tray guide seat mainly plays a guiding role in the lifting process of the whole stack of trays and prevents the trays from tipping over.

[0026] Furthermore, the unloading suction cup bracket includes a first suction cup bracket main body and a first suction cup bracket mounting plate, the first suction cup bracket mounting plate is fixedly mounted on the slide table of the unloading linear module, the first suction cup bracket main body is located at the rear side of the first suction cup bracket mounting plate and is arranged perpendicular to it, wherein the first suction cup bracket main body is provided with first suction cup mounting arms extending outward on the left and right sides, and the first suction cup mounting arm is fixedly mounted with a vacuum suction cup for unloading.

[0027] Furthermore, the auxiliary loading suction cup bracket includes a second suction cup bracket main body and a second suction cup bracket mounting plate, the second suction cup bracket mounting plate is fixedly mounted on the slide table of the auxiliary loading linear module, a lifting cylinder for auxiliary loading is fixedly mounted on the side of the second suction cup bracket mounting plate, and the bottom of the output shaft of the lifting cylinder for auxiliary loading is fixedly connected to one end of the top of the second suction cup bracket main body; wherein second suction cup mounting arms are evenly spaced on the second suction cup bracket main body, and a vacuum suction cup for auxiliary loading is fixedly mounted on the second suction cup mounting arm.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] In this solution, a tray is used to hold the battery cells, and then a single stack of trays is used for feeding, which can realize manual large-scale loading; and then the trays after the battery cells are taken out can also be recycled in a unified manner:

[0030] An auxiliary feeding system is used to feed multiple battery cells at a time to the battery cell cache sorting system. After the battery cell cache sorting system sorts and caches the battery cells, they are transported to the stringing machine conveyor line for stringing operations. Because the battery cell cache sorting system will sort and align the battery cells, the control accuracy requirements for the auxiliary feeding system are low. At this time, the speed of the auxiliary feeding system can be increased to achieve high-speed feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the feeding system of the photovoltaic module string welding machine.

[0032] Figure 2 This is the front view of the feeding system of the photovoltaic module string welding machine.

[0033] Figure 3 Side view of the feeding system for the photovoltaic module string welding machine.

[0034] Figure 4 This is a top view of the feeding system of the photovoltaic module string welding machine.

[0035] Figure 5 This is a schematic diagram of the structure of the battery tray storage system in the photovoltaic module string welding machine feeding system.

[0036] Figure 6 This is a schematic structural diagram from another angle of the battery cell tray storage system in the photovoltaic module string welding machine feeding system.

[0037] Figure 7 This is a schematic diagram of the structure of the tray unloading device in the feeding system of the photovoltaic module string welding machine.

[0038] Figure 8 This is a schematic diagram of the structure of the auxiliary feeding system in the feeding system of the photovoltaic module string welding machine.

[0039] Fig. 9 This is a schematic diagram of the structure of the cell buffering and sorting system in the feeding system of the photovoltaic module string welding machine.

[0040] Fig.10 This is a structural schematic diagram from another angle of the battery cell buffering and sorting system in the photovoltaic module string welding machine feeding system.

[0041] Fig.11 for Fig.10 A partial enlarged view of point A in the middle.

[0042] Fig.12 for Fig.10 A partial enlarged view of point B in the middle.

[0043] Fig.13 This is a schematic diagram of the structure of the conveyor line for transporting battery cells to the stringer.

[0044] Fig.14 for Fig.13 A partial enlarged view of point C in the middle.

[0045] Fig.15 Schematic diagram of the photovoltaic module stringer feeding system installed on the side of the conveyor line where the solar cells are transported to the stringer.

[0046] Fig.16 This is a schematic diagram of the structure of the material tray in the feeding system of the photovoltaic module string welding machine. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0048] In the prior art, in order to shorten the length of the conveyor line, the battery cells are stored in a stacked manner on the side of the conveyor line, and then a robot is used to load the battery cells to ensure the supply to the stringer. However, the robot itself needs to be reset after loading and then grab the battery cells. In addition, in order to ensure the accuracy of the loading position of the robot and to ensure stable operation, the movement speed of the robot itself will not be very fast. The efficiency of this loading method is not ideal. At the same time, the robot loading requires the use of a vacuum suction cup to realize the grabbing of the battery cells. Since the bottom of the vacuum suction cup is flexible, it will deform when the vacuum suction cup contacts the battery cell. This results in the multiple battery cells after the vacuum suction cup is adsorbed not being completely in a straight line. Subsequently, the battery cells need to be sorted on the conveyor line of the stringer to ensure that the multiple battery cells are straight.

[0049] With vacuum suction cup loading,

[0050] See also Figure 1-16 , a photovoltaic module string welding machine feeding system, including a battery sheet tray storage system 100 and an auxiliary feeding system 200,

[0051] The battery sheet tray storage system 100 and the auxiliary feeding system 200 are both fixedly mounted on the bracket 600;

[0052] The battery cell tray storage system 100 is used to store trays loaded with battery cells and supply the battery cells in the trays to the auxiliary loading system 200 for grabbing;

[0053] The auxiliary feeding system 200 is used to intermittently grab the battery cells and supply them to the battery cell buffer sorting system 400.

[0054] The battery cell buffering and sorting system 400 sorts the battery cells and transports the battery cells to the stringer conveyor line 500;

[0055] The bracket 600 includes a bottom frame 601 and a side frame 602, wherein the side frame 602 is located at the rear side of the bottom frame 602 and is arranged perpendicular to the bottom frame 602; a front column 603 is arranged at the top front end of the bottom frame 601, and a top frame 604 is arranged at the top of the front column 603;

[0056] like Figure 5-6 As shown, the battery sheet tray storage system 100 includes a tray batch lifting device 110 and a tray batch feeding device 120, and the battery sheet tray storage system 100 is located at the front end of the side frame 602;

[0057] The tray batch lifting device 110 is provided with two groups. One group of tray batch lifting devices 110 on the right side of the bracket 600 is used to lift the trays and supply them to the auxiliary feeding system 200 for grabbing; the other group of tray batch lifting devices 110 on the left side of the bracket 600 is used to store the trays after unloading.

[0058] The tray batch feeding device 120 is used to transport batches of trays to the tray batch lifting device 110;

[0059] The tray batch feeding device 120 is fixedly mounted on the front right side of the bottom frame 601, and the tray batch feeding device 120 is located at the front end of the tray batch lifting device 110;

[0060] The tray batch lifting device 110 includes a lifting guide rail 111, and the lifting guide rail 111 is provided with two groups and is arranged parallel to each other. The lifting guide rail 111 is fixedly installed on the side frame 602; a tray bracket 112 is slidably installed at the front end of the lifting guide rail 111 through a guide rail slider; the tray batch lifting device 110 also includes a ball screw mechanism 113 for driving the tray bracket 112 to rise and fall;

[0061] In this solution, the tray bracket 112 includes a bracket mounting plate 1121 and a tray support plate 1122. Two tray support plates 1122 are provided, and the two tray support plates 1122 are fixedly mounted on the left and right sides of the top of the front end of the bracket mounting plate 1121; in this solution, a reinforcing rib plate 1123 is also fixedly mounted between the bottom of the tray support plate 1122 and the front end of the bracket mounting plate 1121 to enhance the structural strength between the bracket mounting plate 1121 and the tray support plate 1122;

[0062] The ball screw mechanism 1113 includes a ball screw 1131 and a screw nut 1132. The ball screw 1131 is vertically fixedly installed at the front end of the side frame 602 through a bearing and a bearing seat. The ball screw 1131 is transmission-connected with a screw nut 1132, wherein the screw nut 1132 is fixedly installed at the rear side of the material tray bracket 112 through a nut seat 1133. When the ball screw 1131 rotates, the material tray bracket 112 can be driven to move up and down through the nut seat 1133.

[0063] The tray batch lifting device 110 further includes a lifting drive motor 114, and the lifting drive motor 114 drives a ball screw mechanism 1113;

[0064] Specifically, the lifting drive motor 114 is fixedly mounted on the bottom frame 601 via a first motor bracket 1141, and the lifting drive motor 114 drives the ball screw 1131 connected to the ball screw mechanism 1113 via a first synchronous belt transmission mechanism 1142;

[0065] The tray batch feeding device 120 includes a set of pneumatic slides 121 and a tray receiving platform 122 mounted on the slide of the pneumatic slide 121, a first cylinder mounting plate 123 is fixedly mounted on the top of the pneumatic slide 121, a first lifting cylinder 124 is vertically fixedly mounted at the top center of the first cylinder mounting plate 123, and the tray receiving platform 122 is fixedly mounted on the output shaft of the first lifting cylinder 124;

[0066] At the same time, in this solution, the four corners of the bottom of the tray table 122 are also vertically fixedly connected with first guide shafts 1221, and the first guide shafts 1221 are slidably connected with the four corners of the first cylinder mounting plate 123 through linear bearings 1222;

[0067] When the present invention is used, a stack of trays 900 containing battery cells is first placed on the tray table 122, and then the pneumatic slide 121 is actuated to transport the stack of trays 900 backward to the tray batch lifting device 110, at which time the tray bracket 112 of the tray batch lifting device 110 is located below the tray table 122;

[0068] The lifting drive motor 114 of the tray batch lifting device 110 is activated, and the tray bracket 112 is driven to rise through the ball screw mechanism 113, and the stack of trays 900 on the tray receiving table 122 is driven to move upward;

[0069] At the same time, in this solution, a tray guide seat 130 is also provided on the periphery of the tray batch lifting device 110, and the tray guide seat 130 is fixedly installed on the bottom frame 601; the tray guide seat 130 is provided on the rear side and left and right sides of the tray batch lifting device 110 on the right side of the bracket 600, and the tray guide seat 130 is provided on the front and back sides and right side of the tray batch lifting device 110 on the left side of the bracket 600; the tray guide seat 130 mainly plays a guiding role in the lifting process of the whole stack of trays 900 and prevents the trays from tipping over;

[0070] like Figure 7 As shown, the battery sheet tray storage system 100 further includes a set of tray unloading devices 300, which are mainly used to transfer the tray 900 with the battery sheets removed from the tray batch lifting device 110 on the right side of the support 600 to the tray batch lifting device 110 on the left side of the support 600;

[0071] The tray unloading device 300 includes an unloading linear module 301, an unloading suction cup bracket 302, and an unloading vacuum suction cup 303;

[0072] The unloading linear module 301 is fixedly installed on the rear side of the first module bracket 304 along the left-right direction, and the first module bracket 304 is fixedly installed on the top of the top frame 604. The unloading suction cup bracket 302 is fixedly installed on the slide of the unloading linear module 301; a total of four unloading vacuum suction cups 303 are installed on the unloading suction cup bracket 302 in a rectangular array;

[0073] Specifically, the unloading suction cup bracket 302 includes a first suction cup bracket body 3021 and a first suction cup bracket mounting plate 3022, the first suction cup bracket mounting plate 3022 is fixedly mounted on the slide table of the unloading linear module 301, the first suction cup bracket body 3021 is located at the rear side of the first suction cup bracket mounting plate 3022 and is arranged perpendicular to it, wherein the left and right sides of the first suction cup bracket body 3021 are extended outwardly with first suction cup mounting arms 3023, and the unloading vacuum suction cup 303 is fixedly mounted on the first suction cup mounting arms 3023;

[0074] When all the battery cells on a tray 900 are taken away, the unloading linear module 301 moves to drive the unloading suction cup bracket 302 to move rightward to the top of the tray 900, and then the lifting drive motor 130 of the tray batch lifting device 110 on the right side moves, and the tray bracket 112 rises to drive the tray 900 on the tray table 122 to move upward; so that the tray 900 docks with the unloading vacuum suction cup 303 on the unloading suction cup bracket 302, and the unloading vacuum suction cup 303 moves to absorb the tray 900, and then the tray batch lifting device 110 on the right side moves to drive the remaining trays to descend;

[0075] Then, the unloading linear module 301 drives the empty tray 900 to move leftward to another set of tray batch lifting devices 110 on the left side of the bracket 600, and the set of tray batch lifting devices 110 moves to receive the empty tray 900, thereby realizing the unloading of the empty tray, thereby facilitating the access to the battery cells on the next tray;

[0076] like Figure 8 As shown, the auxiliary loading system 200 includes an auxiliary loading linear module 201, an auxiliary loading suction cup bracket 202, and an auxiliary loading vacuum suction cup 203; the auxiliary loading linear module 201 is fixedly installed on the rear side of the second module bracket 204 along the front-to-back direction, and the second module bracket 204 is fixedly installed on the top of the connecting beam 605 between the side frame 602 and the top frame 604;

[0077] The auxiliary loading suction cup bracket 202 is fixedly mounted on the slide table of the auxiliary loading linear module 201; a plurality of auxiliary loading vacuum suction cups 203 are provided, and the plurality of auxiliary loading vacuum suction cups 203 are evenly spaced and arranged on the auxiliary loading suction cup bracket 202;

[0078] Specifically, the auxiliary loading suction cup bracket 202 includes a second suction cup bracket main body 2021 and a second suction cup bracket mounting plate 2022, the second suction cup bracket mounting plate 2022 is fixedly mounted on the slide table of the auxiliary loading linear module 201, and a lifting cylinder 2024 for auxiliary loading is fixedly mounted on the side of the second suction cup bracket mounting plate 2022, and the bottom of the output shaft of the lifting cylinder 2024 for auxiliary loading is fixedly connected to one end of the top of the second suction cup bracket main body 2021; wherein second suction cup mounting arms 2023 are evenly spaced on the second suction cup bracket main body 2021, and a vacuum suction cup 203 for auxiliary loading is fixedly mounted on the second suction cup mounting arm 2023;

[0079] When the auxiliary loading system 200 is put into use, the auxiliary loading linear module 201 moves to drive the auxiliary loading suction cup bracket 202 to a row of battery cells on the material tray 900, and then the auxiliary loading lifting cylinder 2024 extends, the auxiliary loading suction cup bracket 202 moves downward, and the auxiliary loading vacuum suction cup 203 contacts the battery cells to absorb the battery cells, and then the auxiliary loading lifting cylinder 2024 contracts, and the auxiliary loading linear module 201 moves to move the battery cells to the battery cell buffering and sorting system 400; then the auxiliary loading lifting cylinder 2024 extends, and the auxiliary loading suction cup bracket 202 moves downward, and the battery cells are placed on the battery cell buffering and sorting system 400;

[0080] like Figure 9-12 As shown, the cell buffer arrangement system 400 includes a buffer conveyor line 410 arranged in parallel with the stringer conveyor line 500, and also includes a circulating feeding device 420 arranged between the stringer conveyor line 500 and the buffer conveyor line 410;

[0081] A cell guide frame 411 is provided on the top of the buffer conveyor line 410 to guide the moving cells on the buffer conveyor line 410 so that the cells move in an orderly manner.

[0082] A cell guide groove 412 is provided in the middle of the cell guide frame 411 along the left-right direction, and the right end of the cell guide groove 412 is open as a whole, so that the cell between the two cell guide frames 411 is guided to the middle of the buffer conveyor line 410 when it contacts the open right end of the cell guide groove 412. At the same time, a first stop plate 413 is provided at the left end of the cell guide groove 412, and the cell stops moving when it contacts the first stop plate 413.

[0083] Meanwhile, in this solution, a first guide groove 4111 is provided on the left side of the battery cell guide frame 411 along the front and rear sides, wherein a first guide plate 4112 is provided on the rear side of the first guide groove 4111, a second guide groove 4113 is provided on the top of the first guide plate 4112, and the first guide groove 4111 and the second guide groove 4113 are aligned;

[0084] A first pushing mechanism 414 is further provided at the front side of the left end of the cell guide frame 411, and the first pushing mechanism 414 is used to push the cell contacting the first stop plate 413 backward along the first guide groove 4111 and the second guide groove 4113 at the rear side of the cell guide frame 411;

[0085] Specifically, the first pushing mechanism 414 includes a first electric push rod 4141 and a first push piece block 4142. The first electric push rod 4141 is fixedly installed on the side of the buffer conveyor line 410. The end of the output shaft of the first electric push rod 4141 is fixedly connected to the first push piece block 4142, and the first push piece block 4142 is located in the first guide groove 4111 at the front end of the battery cell guide frame 411. When the first electric push rod 4141 is extended, the first push piece block 4142 pushes the battery cell to move to the rear side of the second guide groove 4113.

[0086] The circulating feeding device 420 includes a circulating feeding bracket 421 and a circulating feeding belt 422 fixedly installed thereon. A driving pulley 423 and a driven pulley 424 are respectively provided at the lower end and the top end of the circulating feeding bracket 421. The circulating feeding belt 422 is drivingly connected between the driving pulley 423 and the driven pulley 424. A circulating feeding motor 425 is also provided on one side of the circulating feeding bracket 421. The circulating feeding motor 425 drives and connects the driving pulley 423 to drive the circulating feeding belt 422 to move. A plurality of battery cell support plates 426 are evenly spaced and installed on the circulating feeding belt 422.

[0087] Specifically, a plurality of support plate mounting seats 4221 are evenly spaced on the circulating feeding belt 422, and one side of the battery cell support plate 426 is fixedly connected to the support plate mounting seat 4221 by screws;

[0088] At the same time, a second pushing mechanism 427 is also provided on the top of the circulating feeding bracket 421; the second pushing mechanism 427 pushes the battery sheet conveyed to the same height as the circulating feeding device 420 along the third guide frame 428 to the stringer conveyor line 500;

[0089] The second pushing mechanism 427 includes a second electric push rod 4271 and a second push piece block 4272. The second electric push rod 4271 is fixedly installed at the front end of the circulating feeding bracket 421, and the end of the output shaft of the second electric push rod 4271 is fixedly connected to the second push piece block 4272; at the same time, a third guide frame 428 is also provided at the top rear side of the circulating feeding bracket 421, and a third guide groove 4281 is provided at the top of the third guide frame 428. When the second electric push rod 4271 is extended, the second push piece block 4272 pushes the battery sheet to move to the rear side of the second guide groove 4113; at the same time, the third guide frame 428 extends to the stringing machine conveyor line 500;

[0090] like Figure 13-14 As shown, in the present embodiment, a receiving groove 501 for placing the third guide frame 428 is provided at the side of the bracket of the stringer conveyor line 500 corresponding to the third guide frame 428, so that the bottom of the third guide groove 4281 of the third guide frame 428 is flush with the conveyor belt of the stringer conveyor line 500; in the present embodiment, an alignment baffle 502 is also provided on the side of the bracket of the stringer conveyor line 500 away from the third guide frame 428, so that the battery cells conveyed from the third guide frame 428 are aligned when contacting the alignment baffle 502, thereby ensuring that all the battery cells are in a straight line;

[0091] like Fig.16 As shown, in the present embodiment, the material tray 900 is provided with a plurality of battery cell slots 901 for placing battery cells at even intervals.

[0092] like Fig.15 As shown, when the present invention is put into use, a worker places a stack of trays 900 containing battery cells on the tray table 122, and then the pneumatic slide 121 is actuated to transport the stack of trays 900 backward to the tray batch lifting device 110. At this time, the tray bracket 112 of the tray batch lifting device 110 is located below the tray table 122; the lifting drive motor 114 of the tray batch lifting device 110 is actuated to drive the tray bracket 112 to rise through the ball screw mechanism 113, and drive the stack of trays 900 on the tray table 122 to move upward;

[0093] The auxiliary loading linear module 201 of the auxiliary loading system 200 moves to drive the auxiliary loading suction cup bracket 202 to a row of battery cells on the material tray 900, and then the auxiliary loading lifting cylinder 2024 extends, the auxiliary loading suction cup bracket 202 moves downward, and the auxiliary loading vacuum suction cup 203 contacts the battery cells to absorb the battery cells, and then the auxiliary loading lifting cylinder 2024 contracts, and the auxiliary loading linear module 201 moves to move the battery cells to the battery cell buffering and sorting system 400; then the auxiliary loading lifting cylinder 2024 extends, and the auxiliary loading suction cup bracket 202 moves downward, and the battery cells are placed on the battery cell buffering and sorting system 400;

[0094] After all the battery cells on a tray 900 are taken away, the unloading linear module 301 drives the unloading suction cup bracket 302 to move rightward to the top of the tray 900, and then the lifting drive motor 130 of the tray batch lifting device 110 on the right side is actuated, and the tray bracket 112 rises to drive the tray 900 on the tray table 122 to move upward; so that the tray 900 is docked with the unloading vacuum suction cup 303 on the unloading suction cup bracket 302, and the unloading vacuum suction cup 303 is actuated to adsorb the tray 900, and then the tray batch lifting device 110 on the right side is actuated to drive the remaining trays to descend; then the unloading linear module 301 is actuated to drive the empty tray 900 to move leftward to another set of tray batch lifting devices 110 on the left side of the bracket 600, and this set of tray batch lifting devices 110 is actuated to receive the empty tray 900; the unloading of the empty tray is realized, thereby facilitating the use of the battery cells on the next tray;

[0095] The buffer conveyor line 410 of the cell buffer arrangement system 400 is started, and the conveyor belt of the conveyor line drives the cells to enter the cell guide frame 411, and the cells move in an orderly manner; the cells stop moving when they contact the first stop plate 413;

[0096] When the first electric push rod 4141 of the first pushing mechanism 414 extends, the first pusher block 4142 pushes the battery cell to move to the rear side of the second guide groove 4113. At this time, the battery cell support plate 426 of the circulating feeding device 420 is located at the rear side of the second guide groove 4113, and the battery cell enters the battery cell support plate 426; with the action of the circulating feeding device 420, the battery cell is driven by the battery cell support plate 426 to rise to the second pushing mechanism 427, the circulating feeding device 420 is paused, and the second pushing mechanism 427 is actuated to push the battery cell to the stringing machine conveyor line 500;

[0097] In this solution, the battery cells on the circulating feeding device 420 are stored in large quantities in the cache conveyor line 410 of the battery cell cache sorting system 400. While the battery cells are pushed into the stringer conveyor line 500 by the second pushing mechanism 427, the battery cells in the battery cell cache sorting system 400 are also pushed into the circulating feeding device 420 by the first pushing mechanism 414, so that the battery cells in the circulating feeding device 420 are continuously replenished, so that this solution can continuously supply battery cells to the stringer conveyor line 500.

[0098] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "connection" and the like should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A photovoltaic module string welding machine feeding system, including a cell tray storage system and an auxiliary feeding system; characterized in that: The battery sheet tray storage system and the auxiliary feeding system are both fixedly mounted on the bracket; The battery cell tray storage system is used to store trays loaded with battery cells and supply the battery cells in the trays to the auxiliary feeding system for grabbing; The auxiliary feeding system is used to intermittently grab the battery cells and supply them to the battery cell buffer sorting system; The battery cell buffering and sorting system sorts the battery cells and transports the battery cells to the stringing machine conveyor line; The bracket includes a bottom frame and a side frame, wherein the side frame is located at the rear side of the bottom frame and is arranged perpendicularly thereto; at the same time, a front column is arranged at the top front end of the bottom frame, and a top frame is arranged at the top of the front column; The battery sheet tray storage system includes a tray batch lifting device and a tray batch feeding device, and the battery sheet tray storage system is located at the front end of the side frame; The tray batch lifting device is provided with two groups, one group of tray batch lifting devices on the right side of the bracket is used to lift the trays and supply them to the auxiliary feeding system for grabbing; the other group of tray batch lifting devices on the left side of the bracket is used to store the trays after unloading; The tray batch feeding device is used to transport batches of trays to the tray batch lifting device; the tray batch feeding device is fixedly installed on the front right side of the bottom frame, and the tray batch feeding device is located at the front end of the tray batch lifting device; the tray batch feeding device includes a group of pneumatic slides and a tray holding table installed on the slide of the pneumatic slide, a first cylinder mounting plate is fixedly installed on the top of the slide of the pneumatic slide, a first lifting cylinder is vertically fixedly installed at the top center of the first cylinder mounting plate, and a tray holding table is fixedly installed on the output shaft of the first lifting cylinder; The battery cell tray storage system also includes a set of tray unloading devices, which are mainly used to transfer the trays with battery cells removed from the tray batch lifting device on the right side of the bracket to the tray batch lifting device on the left side of the bracket; the tray unloading device includes an unloading linear module, an unloading suction cup bracket and an unloading vacuum suction cup; the unloading linear module is fixedly installed on the rear side of the first module bracket along the left and right directions, the first module bracket is fixedly installed on the top of the top frame, and the unloading suction cup bracket is fixedly installed on the slide of the unloading linear module; a total of four unloading vacuum suction cups are provided in a rectangular array and installed on the unloading suction cup bracket; The auxiliary loading system comprises an auxiliary loading linear module, an auxiliary loading suction cup bracket and an auxiliary loading vacuum suction cup; the auxiliary loading linear module is fixedly mounted on the rear side of the second module bracket along the front-back direction, and the second module bracket is fixedly mounted on the top of the connecting beam between the side frame and the top frame; the auxiliary loading suction cup bracket is fixedly mounted on the slide of the auxiliary loading linear module; a plurality of auxiliary loading vacuum suction cups are provided, and the plurality of auxiliary loading vacuum suction cups are evenly spaced and arranged on the auxiliary loading suction cup bracket; The battery cell buffering and sorting system includes a buffering conveyor line arranged in parallel with the stringing machine conveyor line, and also includes a circulating feeding device arranged between the stringing machine conveyor line and the buffering conveyor line; a battery cell guide frame is arranged on the top of the buffering conveyor line, which is used to guide the moving battery cells on the buffering conveyor line so that the battery cells move in an orderly manner; wherein a battery cell guide groove is opened in the middle of the battery cell guide frame along the left and right directions, and the right end of the battery cell guide groove is opened as a whole, so that the battery cells between the two battery cell guide frames are guided to the middle of the buffering conveyor line when they contact the open right end of the battery cell guide groove, and at the same time, a first stop plate is also arranged at the left end of the battery cell guide groove, and the battery cell stops moving when it contacts the first stop plate; the left end side of the battery cell guide frame A first guide groove is provided along the front and rear sides, wherein a first guide plate is provided at the rear side of the first guide groove, a second guide groove is provided at the top of the first guide plate, and the first guide groove and the second guide groove are arranged in alignment; a first pushing mechanism is also provided at the front side of the left end of the battery sheet guide frame, and the first pushing mechanism is used to push the battery sheet contacting the first stop plate backward along the first guide groove and the second guide groove at the rear side of the battery sheet guide frame; the first pushing mechanism comprises a first electric push rod and a first push piece block, the first electric push rod is fixedly mounted on the side of the cache conveyor line, the output shaft end of the first electric push rod is fixedly connected to the first push piece block, and the first push piece block is located in the first guide groove at the front end of the battery sheet guide frame; when the first electric push rod is extended, the first push piece block pushes the battery sheet to move to the rear side of the second guide groove; The circulating feeding device comprises a circulating feeding bracket and a circulating feeding belt fixedly installed thereon, a driving pulley and a driven pulley are respectively arranged at the lower end and the top end of the circulating feeding bracket, and the circulating feeding belt is transmission-connected between the driving pulley and the driven pulley; a circulating feeding motor is also arranged on one side of the circulating feeding bracket, and the circulating feeding motor drives the driving pulley to drive the circulating feeding belt to move; a plurality of battery cell supporting plates are evenly spaced and installed on the circulating feeding belt; a plurality of supporting plate mounting seats are evenly spaced and installed on the circulating feeding belt, and one side of the battery cell supporting plate is fixedly connected to the supporting plate mounting seat by screws; at the same time, A second pushing mechanism is also provided on the top; the second pushing mechanism pushes the battery cell transported to the same height as the circulating feeding device along the third guide frame to the conveying line of the stringing machine; the second pushing mechanism includes a second electric push rod and a second push piece block, the second electric push rod is fixedly installed at the front end of the circulating feeding bracket, and the end of the output shaft of the second electric push rod is fixedly connected to the second push piece block; at the same time, a third guide frame is also provided on the rear side of the top of the circulating feeding bracket, and a third guide groove is provided on the top of the third guide frame, and when the second electric push rod is extended, the second push piece block pushes the battery cell to move to the rear side of the second guide groove; at the same time, the third guide frame extends to the conveying line of the stringing machine.

2. The photovoltaic module string welding machine feeding system according to claim 1, characterized in that: The batch lifting device for material trays includes a lifting guide rail, which is provided with two groups and arranged parallel to each other, and the lifting guide rail is fixedly installed on the side frame; the front end of the lifting guide rail is slidably installed with a material tray bracket through a guide rail slider; the batch lifting device for material trays also includes a ball screw mechanism for driving the material tray bracket to lift and lower; the batch lifting device for material trays also includes a lifting drive motor, and the lifting drive motor drives the ball screw mechanism.

3. The photovoltaic module string welding machine feeding system according to claim 2, characterized in that: The tray bracket includes a bracket mounting plate and a tray support plate. Two tray support plates are provided, and the two tray support plates are fixedly mounted on the left and right sides of the top of the front end of the bracket mounting plate. In the present embodiment, a reinforcing rib plate is also fixedly mounted between the bottom of the tray support plate and the front end of the bracket mounting plate to enhance the structural strength between the bracket mounting plate and the tray support plate.

4. The photovoltaic module string welding machine feeding system according to claim 2, characterized in that: The ball screw mechanism includes a ball screw and a screw nut. The ball screw is vertically fixed on the front end of the side frame through a bearing and a bearing seat. The ball screw is transmission-connected with a screw nut, and the screw nut is fixed on the rear side of the tray bracket through a nut seat. When the ball screw rotates, the tray bracket can be driven to move up and down through the nut seat.

5. The photovoltaic module string welding machine feeding system according to claim 4, characterized in that: The lifting drive motor is fixedly mounted on the bottom frame via a first motor bracket, and the lifting drive motor drives a ball screw connected to the ball screw mechanism via a first synchronous belt transmission mechanism.

6. The photovoltaic module string welding machine feeding system according to claim 2, characterized in that: The four corners of the bottom of the serving table are also vertically and downwardly fixedly connected with a first guide shaft, and the first guide shaft is slidably connected to the four corners of the first cylinder mounting plate through linear bearings.

7. The photovoltaic module string welding machine feeding system according to claim 1, characterized in that: A tray guide seat is also provided on the periphery of the tray batch lifting device, and the tray guide seat is fixedly installed on the bottom frame; wherein the tray guide seat is provided on the rear side and left and right sides of the tray batch lifting device on the right side of the bracket, and the tray guide seat is provided on the front and back sides and right side of the tray batch lifting device on the left side of the bracket; the tray guide seat mainly plays a guiding role in the lifting process of the whole stack of trays and prevents the trays from tipping over.

8. The photovoltaic module string welding machine feeding system according to claim 1, characterized in that: The unloading suction cup bracket includes a first suction cup bracket main body and a first suction cup bracket mounting plate. The first suction cup bracket mounting plate is fixedly mounted on the slide table of the unloading linear module. The first suction cup bracket main body is located at the rear side of the first suction cup bracket mounting plate and is arranged perpendicular to it. The left and right sides of the first suction cup bracket main body are extended outward with first suction cup mounting arms, and the first suction cup mounting arm is fixedly mounted with a vacuum suction cup for unloading.

9. The photovoltaic module string welding machine feeding system according to claim 1, characterized in that: The auxiliary loading suction cup bracket includes a second suction cup bracket main body and a second suction cup bracket mounting plate. The second suction cup bracket mounting plate is fixedly mounted on the slide table of the auxiliary loading linear module. A lifting cylinder for auxiliary loading is fixedly mounted on the side of the second suction cup bracket mounting plate. The bottom of the output shaft of the lifting cylinder for auxiliary loading is fixedly connected to one end of the top of the second suction cup bracket main body. The second suction cup mounting arms are evenly spaced on the second suction cup bracket main body, and a vacuum suction cup for auxiliary loading is fixedly mounted on the second suction cup mounting arms.

Images