Ink-jet printing equipment for photovoltaic cells

Abstract

The photovoltaic cell ink-jet printing equipment structurally comprises a conveying belt assembly, a correcting mechanism, a visual deviation rectifying and positioning set, a printing assembly, a printing head cleaning and ink recycling assembly, a cell transferring assembly, a pre-curing assembly, a strong curing assembly and an NG discharging assembly which are installed on a table top. The automatic photovoltaic battery piece ink-jet printing equipment has the advantages that the structural design is reasonable, the automatic photovoltaic battery piece ink-jet printing equipment is designed, the functions of continuous feeding, visual centering deviation correction, multi-axis ink-jet printing, multiple times of UV curing, NG discharging and the like are achieved, the printing head cleaning and ink recycling system is arranged, the ink utilization rate can be effectively increased, the printing head is prevented from being blocked, and the production efficiency is improved. The service life of equipment can be effectively prolonged, the maintenance cost is reduced, and the manufacturing cost of photovoltaic cells is further reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to an inkjet printing device for photovoltaic cells, and belongs to the technical field of photovoltaic cell production. BACKGROUND

[0002] With the continuous growth of global demand for clean energy, the photovoltaic industry, as an important pillar of sustainable energy, is experiencing rapid development. Driven by global goals, the photovoltaic industry is showing explosive growth. According to data from the International Renewable Energy Agency (IRENA), the global photovoltaic installed capacity has grown by more than 30% annually over the past decade, and it is expected that by 2030, photovoltaics will become one of the largest sources of electricity globally.

[0003] As the core link of the photovoltaic industry chain, the production scale of photovoltaic cells continues to expand, and the market has higher requirements for the production efficiency, conversion efficiency, and cost control of the cells. Photovoltaic cell belt production lines are the key carriers for realizing the large-scale and automated production of cells, and they run through multiple core processes such as cell cleaning, texturing, diffusion, etching, coating, and screen printing.

[0004] In the production of photovoltaic cells, traditional screen printing technology has problems such as difficulty in breaking through 30μm electrode grid line width and less than 80% material utilization, which limits the photoelectric conversion efficiency.

[0005] Inkjet printing technology can achieve a grid line width of 10μm, with a material utilization rate of more than 95%, which meets the needs of high-efficiency cell technology iteration. It is also suitable for new cell structures, and high-efficiency cells require the preparation of ultra-thin functional layers (such as ITO transparent conductive film). Inkjet printing can achieve precise control of film thickness to 20nm, avoiding the cracking problem caused by traditional coating processes, and improving cell yield to more than 98%.

[0006] On the other hand, inkjet printing technology, as a new material deposition technology, can accurately control the deposition position and amount of materials, realize flexible patterning design, and greatly improve the utilization rate of materials. At the same time, inkjet printing technology has the characteristics of high cost-effectiveness and is suitable for roll-to-roll processing, making large-scale production possible.

[0007] Among them, inkjet printing technology has the unique advantages of non-contact, high precision, and flexibility in cell surface marking and electrode pattern printing, which can meet the needs of cell individual customization and efficient production.

[0008] However, with the development of photovoltaic cell pieces towards large size (such as 210mm, 182mm), thinning (thickness as low as 130μm or below), and new cell technology such as HJT, TOPCon, the existing inkjet printing equipment has been difficult to meet the production needs in terms of precision, speed, stability, etc. The market urgently needs high-performance inkjet printing equipment to match the rapid development of the photovoltaic industry.

[0009] In summary, developing high-performance inkjet printing equipment key technologies is not only an urgent need for the photovoltaic cell piece belt production line industry to respond to technical challenges and achieve industrial upgrading, but also an inevitable choice to follow policy guidance and seize market opportunities. SUMMARY

[0010] The present application proposes a photovoltaic cell piece inkjet printing equipment, which aims to overcome the above-mentioned shortcomings of the prior art, improve printing quality, improve printing efficiency, improve ink utilization, prolong the service life of each mechanism of the equipment, and improve production stability.

[0011] The technical solution of the present application: a photovoltaic cell piece inkjet printing equipment, the structure of which comprises a conveying belt assembly, a correction mechanism, a visual correction and positioning group, a printing assembly, a print head cleaning and ink recovery assembly, a cell piece transfer assembly, a pre-curing assembly, a strong curing assembly and an NG discharge assembly installed on the table top. The conveying belt assembly consists of six sets arranged in a straight line. The first, second and third sets of conveying belt assemblies are closely arranged, and the fourth, fifth and sixth sets of conveying belt assemblies are closely arranged. The third and fourth sets of conveying belt assemblies are arranged at intervals. The visual correction and positioning assembly is arranged above the second set of conveying belt assemblies, and the correction mechanism is arranged on the side. The cell piece transfer assembly is arranged between the third and fourth sets of conveying belt assemblies. The printing assembly is arranged above the third and fourth sets of conveying belt assemblies. The print head cleaning and ink recovery assembly is arranged on the side of the printing assembly. The pre-curing assembly is arranged on the side of the fourth set of conveying belt assemblies close to the printing assembly. The strong curing assembly is arranged above the fifth set of conveying belt assemblies. The NG discharge assembly is arranged above and on the side of the sixth set of conveying belt assemblies. In operation, the photovoltaic cell piece is transferred from the previous work station to the first set of conveying belt assemblies, transported to the second set of conveying belt assemblies, and then subjected to visual correction and positioning by the visual correction and positioning group. Then, the cell piece is subjected to correction and centering by the correction mechanism, and then transported to the third set of conveying belt assemblies. Then, the cell piece is transported to the printing assembly below by the cell piece transfer assembly for printing of the photosensitive UV glue coating. Then, the cell piece is transported to the fourth set of conveying belt assemblies for UV light pre-curing by the pre-curing assembly. Then, the cell piece is transported to the fifth set of conveying belt assemblies for UV light secondary strong curing by the strong curing assembly. If it is qualified, the cell piece is continuously transported to the subsequent work station by the sixth set of conveying belt assemblies. If it is not qualified, the cell piece is rejected by the NG discharge assembly. The printing assembly can clean the print head and recover residual ink by the print head cleaning and ink recovery assembly.

[0012] Preferably, the conveying belt assembly comprises an A bottom plate mounted on the table top, the A bottom plate being connected to the bottom end of the stand, the A motor support being mounted on the side of the stand, the A support plate being mounted on the top end of the stand, the support profile being mounted on both sides of the A support plate, the belt base plate being mounted on the support profile, the driven pulley support being mounted on one end of the support profile, the driven pulley being mounted on the driven pulley support, the driving shaft being provided at the end of the A support plate, the driving pulley being mounted on both ends of the driving shaft through bearings, the A elastic belt being mounted between the corresponding side driving pulleys and the driven pulley, the A servo motor being mounted on the A motor support, the A driving pulley being mounted on the output end of the A servo motor, the driven pulley being connected to the driving shaft through the A synchronous belt and the A driving pulley. The A servo motor drives the driving shaft to rotate through the A driving pulley, the A synchronous belt and the driven pulley, and further drives the rotation of the A elastic belt through the driving pulley, thereby realizing the linear transportation of the photovoltaic cell.

[0013] Preferably, the correction mechanism comprises a B bottom plate mounted on the table top, the B bottom plate being provided with an A linear guide rail, a pair of sliding blocks being slidably connected to the A linear guide rail, the sliding blocks being connected to the X-direction adjusting plate through connecting pads, the X-direction adjusting plate being connected to the bottom end of the A connecting plate, the Z-direction adjusting plate being mounted on the A connecting plate, the Y-direction adjusting support being connected to the top end of the Z-direction adjusting plate, a plurality of correction wheels being mounted on the top surface of the Y-direction adjusting support, the B housing being provided on one side of the B bottom plate, the B servo motor being mounted on one end of the B housing through the B motor support, the B driving pulley being connected to the output end of the B servo motor, the driven pulley being mounted on the end of the B bottom plate away from the B driving pulley through the driven pulley support, the tensioning block being provided on the outer side of the driven pulley support, the synchronous belt being mounted between the driven pulley and the B driving pulley, the upper and lower parts of the synchronous belt being connected to the two X-direction adjusting plates through the belt connecting supports, one of the connecting pads being provided with a sensor sheet, the end of the sensor sheet being located between the two B sensors, the B sensors being mounted on the B bottom plate through the B sensor support; the visual correction positioning assembly comprises an A mounting support mounted on the table top on both sides of the conveying belt assembly, the camera mounting plate being connected to the top of the A mounting support, the CCD camera being mounted on the camera mounting plate, the surface light mounting support being mounted on the lens of the CCD camera. When working, the B servo motor drives the synchronous belt to rotate, thereby driving the two X-direction adjusting plates to move closer or farther away along the direction of the A linear guide rail, adjusting the X-direction position, the B sensors being used to determine the position, the Z-direction adjusting plate being provided with a vertical long slot hole connected to the A connecting plate through a screw, the Z-direction height being adjustable, the Y-direction adjusting support being provided with a horizontal long slot hole connected to the Z-direction adjusting plate through a screw, the Y-direction position being adjustable.

[0014] Preferably, the printing assembly comprises a gantry frame mounted on the table top by adjusting bolts, an A linear module driven by a C servo motor mounted on the gantry frame, a C bottom plate connected to the moving end of the A linear module through a lifting assembly, an A tow chain groove provided on the gantry frame for mounting an A tow chain, the A tow chain connected to the lifting assembly through a tow chain support, a junction box and a safety bottle mounted on the top front of the C bottom plate, three sets of printing mechanisms provided below the junction box, a print head bottom plate connected to the bottom end of the C bottom plate, an A reinforcing rib plate connected to the side of the C bottom plate and the print head bottom plate, the printing mechanism comprising a print head mounted on the print head bottom plate, taper adjusting rods provided on both sides of the print head, a print head cable and an ink supply tube connected to the print head, an ink cartridge mounting plate mounted on the C bottom plate, an ink cartridge connected to the ink cartridge mounting plate through a pipeline valve, the ink cartridge further connected to an ink circulation pump and a 5 μm filter through a circulation ink pipeline, three sets of large flow ink supply pumps mounted on the top back of the C bottom plate, the large flow ink supply pumps connected to corresponding ink cartridges through ink supply pipelines; the lifting assembly comprising a horizontal movement mounting plate, straight line sliders connected to the horizontal movement mounting plate through guide rail pads, the straight line sliders slidingly connected to B linear guides on the back of the C bottom plate, a D servo motor mounted on the horizontal movement mounting plate through a motor support, a ball screw passing through a coupling connected to the output end of the D servo motor, a screw nut mounted on the ball screw, the screw nut connected to the back of the C bottom plate through a screw nut connecting block, and a buffer pad mounted on the top of the guide rail pad on one side of the back of the C bottom plate through a limiting support. During operation, the lifting assembly controls the lifting of the printing mechanism on the C bottom plate, the printing ink is sent to each ink cartridge by the large flow ink supply pump, the ink is circulated by the ink circulation pump and filtered by the 5 μm filter, and the ink is sprayed by the print head for printing.

[0015] Preferably, the battery piece transfer assembly comprises a pair of concertina covers mounted on the table top, concertina cover stop edges provided on the outer sides of the concertina covers, lifting connection plates provided in the concertina covers, a stage connection plate connected to the top end of the lifting connection plate, B reinforcing rib plates provided on the side surfaces of the lifting connection plate and the stage connection plate, a pair of vacuum edge stages provided on the stage connection plate at intervals, a vacuum middle stage provided between the two vacuum edge stages at intervals, the gaps between the vacuum middle stage and the two side vacuum edge stages matched with the width of the A elastic belt, the lifting connection plate below the concertina cover mounted on the lifting end of a B linear module driven by an E servo motor, the B linear module mounted on the horizontal movement end of a linear motor module of a linear motor through a B connecting plate, a B tow chain groove mounted on the bottom surface of the table top, a B tow chain mounted in the B tow chain groove through a B tow chain support, and a B vacuum generator mounted on the side surface of the B tow chain groove. During operation, the stage connection plate is driven in double axes under the horizontal movement drive of the linear motor module of the linear motor and the lifting drive of the B linear module, and the photovoltaic battery pieces on the conveyor belt assembly are adsorbed and transplanted or moved back to the conveyor belt assembly through the vacuum middle stage and the two side vacuum edge stages.

[0016] Preferably, the pre-curing assembly comprises a B mounting plate connected with a gantry support, an A lifting slide with a slide knob connected with the B mounting plate, the A lifting slide is mounted on the side of a slide connecting plate, the bottom surface of the slide connecting plate is provided with a transverse slide with a slide knob, a light source mounting plate is slidably connected with the transverse slide, the bottom of the light source mounting plate is connected with a pre-curing light source through an adjusting support, and the side of the light source mounting plate is connected with a light shield through a rotating adjusting support. In operation, the position of the pre-curing light source is coarsely adjusted through the A lifting slide and the transverse slide, the position is fixed through the slide knob, the position of the pre-curing light source is finely adjusted through the adjusting support, and the angle of the light shield is adjusted through the rotating adjusting support.

[0017] Preferably, the curing assembly comprises a pair of connecting bottom plates mounted on the tabletop, the connecting bottom plates are connected with supports, a B lifting slide with a fixing knob is arranged on one side of the supports, a strong curing light source is slidably connected with the B lifting slide on one side and is connected with a fixed support on the other side, and the fixed support is detachably connected with the other support through a screw. In operation, the screw of the fixed support on one side is loosened, the height position of the strong curing light source is adjusted through the B lifting slide, the fixed knob is fixed after the adjustment is completed, and the fixed support is fixed through the screw.

[0018] Preferably, the printing head cleaning and ink recycling assembly comprises a support seat mounted on the tabletop, an ink receiving disc is arranged on the top of the support seat, an A mounting plate is arranged on the inner bottom of the support seat, three recesses corresponding to the positions of the printing heads are arranged on the ink receiving disc, a cleaning suction disc is arranged on the side of each recess, a hole in the recess is connected with an ink suction pipeline, the ink suction pipeline is connected with a gas distribution block mounted on the A mounting plate, the gas distribution block is connected with a recycling pipeline, the recycling pipeline is connected with a recycling filter cartridge below the tabletop, the recycling filter cartridge is connected with an A vacuum generator, the A vacuum generator is connected with an A electromagnetic valve, and the A vacuum generator is also connected with a negative pressure gauge on the A mounting plate through a pipeline. In operation, the printing head is sucked by the cleaning suction disc when the printing head comes to the ink receiving disc, the ink is sucked into the recycling filter cartridge through the A vacuum generator, the recycling pipeline, the gas distribution block and the ink suction pipeline, and the cleaning and recycling of the printing head are realized.

[0019] Preferably, the NG discharging assembly comprises a C connecting plate mounted on the tabletop, the C connecting plate is connected with a B support plate, a B motor support is mounted at one end of the B support plate, an F servo motor is mounted on the B motor support, a C driving wheel is connected with the output end of the F servo motor, a pressure wheel is arranged beside the C driving wheel, a belt wheel is mounted at both ends of the B support plate, a B elastic belt is sleeved on the C driving wheel, the pressure wheel and the belt wheel, a Bernoulli suction disc is mounted on the bottom surface of the B support plate, a B electromagnetic valve, a filter and a speed regulating valve are further mounted on the C connecting plate and connected with a vacuum generating device, a D bottom plate is arranged below the side of one end of the B support plate, a side plate is arranged on the side of the D bottom plate, a height adjusting rod is connected with the bottom of the D bottom plate, and the lower end of the height adjusting rod is mounted on the tabletop through a mounting seat. When it is necessary to remove defective products, the Bernoulli suction disc applies suction force to the photovoltaic cell below, and the B elastic belt driven by the F servo motor transmits the photovoltaic cell to the D bottom plate for NG discharging.

[0020] The application has the advantages that the structure design is reasonable, an automatic photovoltaic cell inkjet printing device is designed, has the functions of continuous feeding, visual centering and deviation correction, multi-axis inkjet printing, multiple UV curing, NG discharge and the like, and is provided with a printing head cleaning and ink recovery system, so that the ink utilization rate can be effectively improved, the printing head can be prevented from being blocked, the service life of the device can be effectively prolonged, the maintenance cost can be reduced, and the photovoltaic cell manufacturing cost is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the photovoltaic cell inkjet printing device of the application.

[0022] Figure 2 is a structural schematic view of one embodiment of a supporting rack of the photovoltaic cell inkjet printing device of the application.

[0023] Figure 3 is a structural schematic view of a conveying belt assembly. Figure 1

[0024] is a structural schematic view of a correction mechanism. Figure 4 Figure 1 is a structural schematic view of a visual deviation correction positioning assembly.

[0025] Figure 5 Figure 1 is a structural schematic view of a printing assembly.

[0026] Figure 6 is a structural schematic view of the printing assembly. Figure 1

[0027] is a structural schematic view of the printing assembly from another angle. Figure 7 Figure 1 is a structural schematic view of a cell piece transfer assembly.

[0028] Figure 8 Figure 1 is a structural schematic view of a pre-curing assembly.

[0029] Figure 9 is a structural schematic view of a strong curing assembly. Figure 1

[0030] is a structural schematic view of a printing head cleaning and ink recovery assembly. Figure 10 Figure 1 is a structural schematic view of an NG discharge assembly.

[0031] Figure 11 Figure 1 is a structural schematic view of the printing head cleaning and ink recovery assembly.

[0032] Figure 12 is a structural schematic view of the NG discharge assembly. Figure 1

[0033] ​​​​​​​1 is a table, 2 is a conveyor assembly, 201 is an A base plate, 202 is a column, 203 is an A support plate, 204 is a driving shaft, 205 is a bearing, 206 is a driving pulley, 207 is an A elastic belt, 208 is a support profile, 209 is a belt cushion plate, 210 is a driven pulley support, 211 is a driven pulley, 212 is a driven wheel, 213 is an A synchronous belt, 214 is an A driving wheel, 215 is an A servo motor, 216 is an A motor support, 217 is an A sensor, 218 is an A sensor support, 219 is an optical fiber sensor, 3 is a correction mechanism, 301 is an A cover, 302 is a B servo motor, 303 is a B motor support, 304 is a B synchronous belt, 305 is a B driving wheel, 306 is an A linear guide rail, 307 is a B base plate, 308 is a sliding block, 309 is a B sensor, 310 is a sensor sheet, 311 is a connecting cushion block, 312 is a B sensor support, 313 is a driven wheel support, 314 is a tensioning block, 315 is an X direction adjusting plate, 316 is an A connecting plate, 317 is a Z direction adjusting plate, 318 is a Y direction adjusting support, 319 is a correction wheel, 320 is a belt connecting support, 4 is a visual rectification positioning assembly, 401 is an A mounting support, 402 is a lens, 403 is a surface light mounting support, 404 is a CCD camera, 405 is a camera mounting plate, 5 is a printing assembly, 501 is a gantry support, 502 is an adjusting bolt, 503 is a C servo motor, 504 is an A linear module, 505 is a C sensor, 506 is an A drag chain slot, 507 is a safety bottle, 508 is a C base plate, 509 is a junction box, 510 is a circulating ink pipeline, 511 is a 5 μm filter, 512 is an ink circulating pump, 513 is an A drag chain, 514 is a temperature display, 515 is a liquid level sensor, 516 is a corrugated pipe joint, 517 is an ink cartridge mounting plate, 518 is an ink cartridge heating plate card, 519 is a drive board card, 520 is a circulating ink control board, 521 is a pipeline valve, 522 is a taper adjusting rod, 523 is a print head base plate, 524 is a print head, 525 is a print head cable, 526 is an ink supply pipe, 527 is an A reinforcing rib plate, 528 is an ink supply pipeline, 529 is a D servo motor, 530 is an A motor support, 531 is a shaft coupling, 532 is an eight-channel ink supply board card, 533 is a large-flow ink supply pump, 534 is a bearing support, 535 is a ball screw, 536 is a D sensor, 537 is a screw nut, 538 is a screw nut connecting block, 539 is a guide rail cushion block, 540 is a linear sliding block, 541 is a B linear guide rail, 542 is an A drag chain support, 543 is a buffer cushion block, 544 is a limiting support, 6 is a print head cleaning and ink recycling assembly, 601 is a support seat, 602 is an A mounting plate, 603 is an ink receiving disc, 604 is a cleaning suction disc, 605 is an ink suction pipeline, 606 is a gas distribution block, 607 is an A electromagnetic valve, 608 is an A vacuum generator, 609 is a B mounting support, 610 is a recycling filter cartridge, 611 is a recycling pipeline, 612 is a negative pressure gauge, 7 is a battery piece transfer assembly,701 is B drag chain support, 702 is the organ cover flange, 703 is the organ cover, 704 is the lifting connecting plate, 705 is B reinforcement plate, 706 is the vacuum side load platform, 707 is the vacuum load platform, 708 is the load platform connecting plate, 709 is the organ cover support, 710 is the linear motor, 711 is B connecting plate, 712 is B linear module, 713 is E servo motor, 714 is B drag chain slot, 715 is B vacuum generator, 716 is B drag chain 8 is pre-curing assembly, 801 is B mounting plate, 802 is A lifting slide, 803 is the transverse slide, 804 is the slide connecting plate, 805 is the slide knob, 806 is the light source mounting plate, 807 is the rotary adjustment support, 808 is the light shield, 809 is the pre-curing light source, 810 is the adjustment support, 9 is the solidification assembly, 901 is the connecting bottom plate, 902 is the support, 903 is B lifting slide, 904 is the light shield shell, 905 is the solidification light source, 906 is the fixed support, 10 is NG exhaust assembly, 1001 is C connecting plate, 1002 is filter, 1003 is B motor support, 1004 is F servo motor, 1005 is B shell, 1006 is C driving wheel, 1007 is speed regulating valve, 1008 is B solenoid valve, 1009 is the pressure roller, 1010 is Bernoulli suction cup, 1011 is the cover plate, 1012 is B elastic belt, 1013 is pulley, 1014 is D bottom plate, 1015 is the side plate, 1016 is the height adjustment rod, 1017 is the mounting seat, 1018 is B support plate, 11 is the rack, 1101 is the castor, 1102 is the foot cup, 1103 is the rack door, 1104 is the keyboard, 1105 is the operation folding door, 1106 is the mouse, 1107 is the integrated computer, 1108 is the cooling fan, 1109 is the negative pressure control system, 1110 is the light source controller, 1111 is the electric control cabinet, 1112 is the warning light, 1113 is the touch screen, 1114 is the operation panel, 1115 is the NG exhaust port, 1116 is the digital pressure gauge, 1117 is the main power switch, 1118 is the air source filter. DETAILED DESCRIPTION

[0034] The application will be further described in connection with the embodiments and specific implementations.

[0035] As Figure 1As shown, the photovoltaic cell piece inkjet printing equipment, its structure includes the transmission belt assembly 2 installed on the table 1, the correction mechanism 3, the visual correction positioning group 4, the printing assembly 5, the printing head cleaning and ink recovery assembly 6, the cell piece transfer assembly 7, the pre-curing assembly 8, the strong curing assembly 9 and the NG discharge assembly 10, wherein the transmission belt assembly 2 is six sets and arranged in a straight line in turn, the first, second and third sets of transmission belt assemblies 2 are closely arranged, the fourth, fifth and sixth sets of transmission belt assemblies 2 are closely arranged, the third and fourth sets of transmission belt assemblies 2 are arranged at intervals, the visual correction positioning assembly 4 is arranged above the second set of transmission belt assemblies 2, and the correction mechanism 3 is arranged on the side, the cell piece transfer assembly 7 is arranged between the third and fourth sets of transmission belt assemblies 2, the printing assembly 5 is arranged above the third and fourth sets of transmission belt assemblies 2, the printing head cleaning and ink recovery assembly 6 is arranged on the side of the printing assembly 5, the pre-curing assembly 8 is arranged on the side of the printing assembly 5 close to the fourth set of transmission belt assemblies 2, the strong curing assembly 9 is arranged above the fifth set of transmission belt assemblies 2, and the NG discharge assembly 10 is arranged above and on the side of the sixth set of transmission belt assemblies 2, and the printing head cleaning and ink recovery assembly 6 can be used for cleaning the printing head and recovering residual ink.

[0036] In operation, the photovoltaic cell piece is transferred from the previous station to the first set of transmission belt assemblies 2, conveyed to the second set of transmission belt assemblies 2, visually corrected and positioned by the visual correction positioning group 4, then corrected and centered by the correction mechanism 3, then continuously conveyed to the third set of transmission belt assemblies 2, then conveyed to the printing assembly 5 below by the cell piece transfer assembly 7 to print the photosensitive UV glue coating layer, which includes patterns and two-dimensional codes and other information, to facilitate subsequent tracking of the corresponding MES system, then conveyed to the fourth set of transmission belt assemblies 2 for UV light pre-curing by the pre-curing assembly 8, then conveyed to the fifth set of transmission belt assemblies 2 for UV light secondary strong curing by the strong curing assembly 9, if qualified, continue to be conveyed to the subsequent station by the sixth set of transmission belt assemblies 2, if not qualified, rejected by the NG discharge assembly 10.

[0037] As Figure 2As shown, as an embodiment, the outermost is the rack 11, the surface of the rack 11 is provided with a rack door 1103, the bottom of the rack 11 is provided with a foot cup 1102 and a caster 1101, the rack door 1103 at the bottom of the front side of the rack 11 is provided with a digital air pressure gauge 1116, a main power switch 1117 and an air source filter 1118, the rack door 1103 above is provided with a touch screen 1113, an operation panel 1114 and an NG discharge port 1115, the rack door 1103 at the middle of the other side of the front of the rack 11 is provided with an integrated computer 1107, a mouse 1106 and a keyboard 1104 installed on the operation folding door 1105, the rack door 1103 above the front of the rack 11 is provided with a cooling fan 1108, one of the rack doors 1103 above the front of the rack 11 is provided with a negative pressure control system 1109 and a light source controller 1110, the side of the rack 11 is also provided with a warning light 1112, and the inside of the top of the rack 11 is provided with an electric control cabinet 1111.

[0038] The negative pressure control system 1109 and the light source controller 1110 control the negative pressure and the light source of each mechanism respectively, the NG discharge port 1115 is connected with the NG discharge assembly 10 for discharging unqualified products, and the digital air pressure gauge 1116 and the air source filter 1118 are used for displaying the air pressure of the corresponding mechanism and filtering the air source.

[0039] As shown in Figure 3 The conveying belt assembly 2 includes an A bottom plate 201 installed on the table top 1, the A bottom plate 201 is connected with the bottom end of a stand column 202, the stand column 202 is provided with an A motor support 216 on the side and an A support plate 203 on the top end, support profiles 208 are installed on both sides of the A support plate 203, a belt cushion plate 9 is installed on the support profiles 208, a driven pulley support 210 is installed on one end of the support profiles 208, a driven pulley 211 is installed on the driven pulley support 210, a driving shaft 204 is arranged at the end of the A support plate 203, the driving shaft 204 is provided with a driving pulley 206 through bearings 205 at both ends, an A elastic belt 207 is installed between the corresponding side driving pulley 206 and the driven pulley 211, an A servo motor 15 is installed on the A motor support 216, an A driving wheel 214 is installed at the output end of the A servo motor 15, the A driving wheel 214 is connected with a driven wheel 212 installed on the driving shaft 204 through an A synchronous belt 213, an A sensor 217 is installed on one side of the support profiles 208, an A sensor support 218 is installed on the other side of the support profiles 208, and an optical fiber sensor 219 (optional) is installed on the A sensor support 218.

[0040] A sensor 217 is used to detect the operation of the belt assembly 2, and the optical fiber sensor 219 is used to detect the photovoltaic cell. The A servo motor 15 drives the driving shaft 204 to rotate through the A synchronous belt 213, the driven wheel 212, the A driving wheel 214, the A elastic belt 207, and the driving pulley 206, thereby achieving the linear transportation of the photovoltaic cell.

[0041] As shown in Figure 4 , the correction mechanism 3 includes a B bottom plate 307 installed on the table top 1, the B bottom plate 307 is provided with an A linear guide rail 306, a pair of sliding blocks 308 are slidably connected to the A linear guide rail 306, the sliding blocks 308 are connected to X-direction adjusting plates 315 through connecting pads 311, the X-direction adjusting plates 315 are connected to the bottom end of an A connecting plate 316 at the outer end, a Z-direction adjusting plate 317 is installed on the A connecting plate 316, a Y-direction adjusting bracket 318 is connected to the top end of the Z-direction adjusting plate 317, and a plurality of correction wheels 318 are installed on the top surface of the Y-direction adjusting bracket 318. One side of the B bottom plate 307 is provided with an A housing 301, one end of the A housing 301 is installed with a B servo motor 302 through a B motor bracket 303, the output end of the B servo motor 302 is connected with a B driving wheel 305, the B bottom plate 307 is installed with a driven wheel at the end away from the B driving wheel 305 through a driven wheel bracket 313, the outer side of the driven wheel bracket 313 is provided with a tensioning block 314, a synchronous belt 304 is installed between the driven wheel and the B driving wheel 305, the upper and lower parts of the synchronous belt 304 are connected with two X-direction adjusting plates 315 through a belt connecting bracket 320, one connecting pad 311 is installed on the outer side of one of the X-direction adjusting plates 315, a sensor sheet 310 is located between two B sensors 309 at the end of the sensor sheet 310, and the B sensors 309 are installed on the B bottom plate 307 through a B sensor bracket 312.

[0042] In operation, the B servo motor 302 drives the synchronous belt 304 to rotate, thereby driving the two X-direction adjusting plates 315 on both sides to move closer or farther along the direction of the A linear guide rail 306, adjusting the X-direction position, and the B sensors 309 are used to determine the position. The Z-direction adjusting plate 317 is provided with a vertical long slot hole connected with the A connecting plate 316 through a screw, and the Y-direction adjusting bracket 318 is provided with a horizontal long slot hole connected with the Z-direction adjusting plate 317 through a screw, so as to adjust the Y-direction position.

[0043] As shown in Figure 5 , the visual correction positioning assembly 4 includes an A mounting bracket 401 installed on the table top 1 on both sides of the belt assembly 2, the A mounting bracket 401 is connected with a camera mounting plate 405 at the top, the CCD camera 404 is installed on the camera mounting plate 405, and the lens 402 of the CCD camera 404 is installed with a face light mounting bracket 403.

[0044] As shown in Figure 6 , 7As shown, the printing assembly 5 includes a gantry bracket 501 mounted on the table top 1 by adjusting bolts 505, an A linear module 504 driven by a C servo motor 503 mounted on the gantry bracket 501, a C bottom plate 508 connected to the moving end of the A linear module 504 through a lifting assembly, an A drag chain slot 506 provided on the gantry bracket 501 and mounting an A drag chain 513, the A drag chain 513 connected to the lifting assembly through a drag chain support 542, a C sensor 505 provided at the end of the A linear module 504, a junction box 509 and a safety bottle 507 mounted on the front top of the C bottom plate 508, three groups of printing mechanisms provided below the junction box 509, a print head bottom plate 523 connected to the bottom end of the C bottom plate 508, an A reinforcing rib plate 527 connected to the side of the C bottom plate 508 and the print head bottom plate 523, the printing mechanisms including a print head 524 mounted on the print head bottom plate 523, taper adjusting rods 522 provided on both sides of the print head 524, a print head flat cable 525 and an ink supply tube 526 connected to the print head 524, an ink cartridge mounting plate 517 mounted on the C bottom plate 508, the ink supply tube 526 connected to the ink cartridge mounted on the ink cartridge mounting plate 517 through a pipeline valve 521, a board card connected to the ink disc through the print head flat cable 525, the board card including a temperature display 514, an ink cartridge heating board card 518, a driving board card 519 and a circulating ink control board 520, a liquid level sensor 515 mounted on the ink cartridge, the ink cartridge connected to an ink circulating pump 512 and a 5 μm filter 511 through a circulating ink pipeline 510, three sets of large-flow ink supply pumps 533 mounted on the top back of the C bottom plate 508, the large-flow ink supply pumps 533 connected to ink sources, eight-channel ink supply board cards 532 mounted on the front of the large-flow ink supply pumps 533, the large-flow ink supply pumps 533 connected to the corresponding ink cartridges through ink supply pipelines 528; the lifting assembly includes a horizontal movement mounting plate, the horizontal movement mounting plate connected to a linear slide block 540 through a guide rail pad 539, the linear slide block 540 slidably connected to a B linear guide rail 541 on the back of the C bottom plate 508, a D servo motor 529 mounted on the horizontal movement mounting plate through an A motor support 530, the output end of the D servo motor 529 connected to a ball screw 535 through a coupling 531, a screw nut 537 mounted on the ball screw 535, the screw nut 537 connected to the back of the C bottom plate 508 through a screw nut connecting block 538, the top of the back of the C bottom plate 508 above the top end of the guide rail pad 539 on one side mounted with a buffer pad 543 through a limiting support 544, and a D sensor 536 mounted on the side of the guide rail pad 539 on the other side.

[0045] In operation, the C sensor 505 is used to monitor the movement of the moving end of the A linear module 504, and the D sensor 536 is used to monitor the lifting of the guide rail pad 539. The lifting of the printing mechanisms on the C bottom plate 508 is controlled by the lifting assembly, the printing ink is sent to each ink cartridge by the large-flow ink supply pumps 533, the inkjet printing is performed by the print head 524, and the ink in the ink cartridge is circulated by the ink circulating pump 512 and filtered by the 5 μm filter 511.

[0046] AsFigure 8 As shown, the battery piece transfer assembly 7 includes a pair of concertina covers 703 mounted on the table top 1, the concertina cover 703 is provided with a concertina cover stop 702 outside, the concertina cover 703 is provided with a lifting connecting plate 704 inside, the lifting connecting plate 704 is connected to the stage connecting plate 708 at the top end, the lifting connecting plate 704 and the stage connecting plate 708 are provided with B reinforcing rib plates 5 at the side, a pair of vacuum edge stages 706 are provided on the stage connecting plate 708 at intervals, a vacuum middle stage 707 is provided between the two vacuum edge stages 706 at intervals, the gap between the vacuum middle stage 707 and the two side vacuum edge stages 706 is matched with the width of the A elastic belt 207, the lifting connecting plate 704 below the concertina cover 703 is mounted on the lifting end of the B linear module 712 driven by the E servo motor, the B linear module 712 is mounted on the transverse moving end of the linear motor module of the linear motor 710 through the B connecting plate 711, the B drag chain slot 714 is mounted on the bottom surface of the table top 1, the B drag chain 716 connected to the B connecting plate 711 through the B drag chain support 701 is mounted in the B drag chain slot 714, and the B vacuum generator 715 is also mounted on the side of the B drag chain slot 714.

[0047] When working, the stage connecting plate 708 is driven in double axes under the transverse driving of the linear motor module of the linear motor 710 and the lifting driving of the B linear module 712, and the photovoltaic battery piece on the conveying belt assembly 2 is adsorbed and transplanted or moved back to the conveying belt assembly 2 through the vacuum middle stage 707 and the two side vacuum edge stages 706.

[0048] As shown in the figure, Figure 9 The pre-curing assembly 8 includes a B mounting plate 801 connected to the gantry support 501, an A lifting sliding table 802 connected to the B mounting plate 801 through a sliding table knob 805, the A lifting sliding table 802 is mounted on the side of the sliding table connecting plate 804, the sliding table connecting plate 804 is provided with a transverse sliding table 803 with a sliding table knob 805 on the bottom surface, a light source mounting plate 806 is slidingly connected to the transverse sliding table 803, the light source mounting plate 806 is connected to the pre-curing light source 806 through an adjusting support 810 at the bottom, and the light shield plate 808 is connected to the light source mounting plate 806 through a rotating adjusting support 807 at the side.

[0049] When working, the position of the pre-curing light source 806 is coarsely adjusted through the A lifting sliding table 802 and the transverse sliding table 803, the position is fixed through the sliding table knob 805, the position of the pre-curing light source 806 is finely adjusted through the adjusting support 810, and the angle of the light shield plate 808 is adjusted through the rotating adjusting support 807.

[0050] As shown in the figure, Figure 10As shown, the hardening assembly 9 includes a pair of connecting bottom plates 901 mounted on the table top 1, the connecting bottom plates 901 connecting the supports 902, one side of the supports 902 is provided with a B lifting slide 903 with a fixing knob, the hardening light source 905 is connected to the B lifting slide 903 on one side and a fixing support 906 on the other side, and the fixing support 906 is detachably connected to the other support 902 through a screw.

[0051] In operation, the screw of the fixing support 906 on one side is loosened, the height position of the hardening light source 905 is adjusted through the B lifting slide 903, the fixing knob is fixed after the adjustment is completed, and the fixing support 906 is fixed through a screw.

[0052] As shown, Figure 11 The print head cleaning and ink recovery assembly 6 includes a support seat 601 mounted on the table top 1, the support seat 601 is provided with an ink receiving disc 603 on the top, and the support seat 601 is provided with an A mounting plate 602 on the bottom inner side, the ink receiving disc 603 is provided with three recesses corresponding to the positions of the print heads 524, each recess is provided with a cleaning suction disc 604 on the side surface, the holes on the recesses are connected to an ink suction pipeline 605, the ink suction pipeline 605 is connected to a gas distribution block 606 mounted on the A mounting plate 602, the gas distribution block 606 is connected to a recovery pipeline 611, the recovery pipeline 611 is connected to a recovery filter cartridge 610 below the table top 1, the recovery filter cartridge 610 is connected to an A vacuum generator 608, the A vacuum generator 608 is connected to an A electromagnetic valve 607, and the A vacuum generator 608 is further connected to a negative pressure gauge 612 on the A mounting plate 602 through a pipeline.

[0053] In operation, the print heads 524 come to the ink receiving disc 603 and are sucked by the cleaning suction disc 604, the ink is sucked into the recovery filter cartridge 610 by the A vacuum generator 608 through the recovery pipeline 611, the gas distribution block 606 and the ink suction pipeline 605, so as to realize the cleaning and ink recovery of the print heads.

[0054] As shown, Figure 12As shown, the NG discharge assembly 10 includes a C connecting plate 1001 mounted on the table top 1, the C connecting plate 1001 connects a B support plate 1018, one end of the B support plate 1018 is mounted with a B motor support 1003, the B motor support 1003 is mounted with an F servo motor 1004, an output end of the F servo motor 1004 is connected with a C driving wheel 1006, a pressing wheel 1009 is arranged beside the C driving wheel 1006, a belt wheel 1013 is mounted at two ends of the B support plate 1018, the B elastic belt 1012 is sleeved on the C driving wheel 1006, the pressing wheel 1009 and the belt wheel 1013, a Bernoulli suction cup 1010 is mounted on the bottom surface of the B support plate 1018, the C connecting plate 1001 is further mounted with a B electromagnetic valve 1008, a filter 1002 and a speed regulating valve 1007 connected with a vacuum generating device, a D bottom plate 1014 is arranged below one end of the B support plate 1018, a side plate 1015 is arranged on the side of the D bottom plate 1014, a height adjusting rod 1016 is connected to the bottom of the D bottom plate 1014, and the lower end of the height adjusting rod 1016 is mounted on the table top 1 through a mounting seat 1017.

[0055] In work, when it is necessary to remove defective products, the Bernoulli suction cup 1010 applies suction to the photovoltaic cell below, and the B elastic belt 1012 driven by the F servo motor 1004 transmits the photovoltaic cell to the D bottom plate 1014 for NG discharge.

[0056] The above components are all prior art, and those skilled in the art can use any model and existing design that can realize the corresponding functions.

[0057] The above is only the preferred embodiment of the present application, and it should be pointed out that those skilled in the art can make several modifications and improvements without departing from the inventive concept, and these all belong to the protection scope of the present application.

Claims

1. Inkjet printing apparatus for photovoltaic cells, characterized in that, The application relates to a battery piece printing device, which comprises a conveying belt assembly (2), a correction mechanism (3), a visual deviation rectification positioning group (4), a printing assembly (5), a printing head cleaning and ink recycling assembly (6), a battery piece transfer assembly (7), a pre-solidification assembly (8), a strong solidification assembly (9) and an NG discharge assembly (10) which are installed on a table top (1), wherein the conveying belt assembly (2) is arranged in a straight line and comprises six sets of conveying belt assemblies (2), the first, second and third sets of conveying belt assemblies (2) are closely arranged, the fourth, fifth and sixth sets of conveying belt assemblies (2) are closely arranged, the third and fourth sets of conveying belt assemblies (2) are arranged at intervals, the visual deviation rectification positioning assembly (4) is arranged above the second set of conveying belt assemblies (2), the correction mechanism (3) is arranged on the side of the second set of conveying belt assemblies (2), the battery piece transfer assembly (7) is arranged between the third and fourth sets of conveying belt assemblies (2), the printing assembly (5) is arranged above the third and fourth sets of conveying belt assemblies (2), the printing head cleaning and ink recycling assembly (6) is arranged on the side of the printing assembly (5), the pre-solidification assembly (8) is arranged on the side of the fourth set of conveying belt assemblies (2) close to the printing assembly (5), the strong solidification assembly (9) is arranged above the fifth set of conveying belt assemblies (2), and the NG discharge assembly (10) is arranged above and on the side of the sixth set of conveying belt assemblies (2).

2. The photovoltaic cell inkjet printing apparatus of claim 1, wherein, The conveying belt assembly (2) comprises an A bottom plate (201) installed on the table top (1), the A bottom plate (201) is connected with the bottom end of a stand column (202), the stand column (202) is provided with an A motor support (216) on the side and an A supporting plate (203) on the top end, supporting profiles (208) are arranged on the two sides of the A supporting plate (203), a belt cushion plate (9) is arranged on the supporting profiles (208), a driven belt pulley support (210) is arranged on one end of the supporting profiles (208), a driven belt pulley (211) is arranged on the driven belt pulley support (210), a driving shaft (204) is arranged at the end of the A supporting plate (203), driving belt pulleys (206) are arranged on the two ends of the driving shaft (204) through bearings (205), an A elastic belt (207) is arranged between the corresponding side driving belt pulleys (206) and the driven belt pulley (211), an A servo motor (15) is arranged on the A motor support (216), an A driving wheel (214) is arranged on the output end of the A servo motor (15), and the A driving wheel (214) is connected with a driven wheel (212) arranged on the driving shaft (204) through an A synchronous belt (213).

3. The photovoltaic cell inkjet printing apparatus of claim 2, wherein, The correction mechanism (3) includes a B bottom plate (307) installed on the table (1), the B bottom plate (307) is provided with an A linear guide rail (306), the A linear guide rail (306) is slidably connected with a pair of sliding blocks (308), the sliding blocks (308) are connected with X adjusting plates (315) through connecting pads (311), the X adjusting plates (315) are connected with the bottom ends of A connecting plates (316), the A connecting plates (316) are installed with Z adjusting plates (317), the Z adjusting plates (317) are connected with Y adjusting supports (318), the Y adjusting supports (318) are installed with a plurality of correction wheels (318), one side of the B bottom plate (307) is provided with an A housing (301), one end of the A housing (301) is installed with a B servo motor (302) through a B motor support (303), the output end of the B servo motor (302) is connected with a B driving wheel (305), the B bottom plate (307) is installed with a driven wheel through a driven wheel support (313) away from the B driving wheel (305), the outer side of the driven wheel support (313) is provided with a tensioning block (314), the driven wheel and the B driving wheel (305) are installed with a synchronous belt (304), the upper and lower parts of the synchronous belt (304) are connected with two X adjusting plates (315) through a belt connecting support (320), one side of the connecting pad (311) is installed with a sensor sheet (310), the end of the sensor sheet (310) is located between two B sensors (309), the B sensors (309) are installed on the B bottom plate (307) through a B sensor support (312); The visual correction positioning assembly (4) includes A mounting supports (401) installed on the two sides of the table (1) of the conveying belt assembly (2), the top of the A mounting supports (401) is connected with camera mounting plates (405), the camera mounting plates (405) are installed with CCD cameras (404), the lens (402) of the CCD cameras (404) is installed with a surface light mounting support (403).

4. The photovoltaic cell inkjet printing apparatus of claim 3, wherein, The printing assembly (5) includes a gantry bracket (501) mounted on the table top (1) through an adjusting bolt (505), the gantry bracket (501) is provided with an A linear module (504) driven by a C servo motor (503), the moving end of the A linear module (504) is connected with a C bottom plate (508) through a lifting assembly, the gantry bracket (501) is further provided with an A drag chain slot (506) for mounting an A drag chain (513), the A drag chain (513) is connected with the lifting assembly through a drag chain support (542), the front top of the C bottom plate (508) is provided with a junction box (509) and a safety bottle (507), three groups of printing mechanisms are arranged below the junction box (509), the bottom end of the C bottom plate (508) is connected with a print head bottom plate (523), the C bottom plate (508) is connected with the print head bottom plate (523) through an A reinforcing rib plate (527) on the side surface, the printing mechanism comprises a print head (524) mounted on the print head bottom plate (523), taper adjusting rods (522) are arranged on the two sides of the print head (524), the print head (524) is connected with a print head wire (525) and an ink supply pipe (526), an ink cartridge mounting plate (517) is mounted on the C bottom plate (508), the ink supply pipe (526) is connected with an ink cartridge mounted on the ink cartridge mounting plate (517) through a pipe valve (521), the ink cartridge is further connected with an ink circulating pump (512) and a 5μm filter (511) through a circulating ink pipe (510), three sets of large-flow ink supply pumps (533) are mounted on the top of the back of the C bottom plate (508), the large-flow ink supply pumps (533) are connected with corresponding ink cartridges through ink supply pipes (528); the lifting assembly comprises a transverse movement mounting plate, the transverse movement mounting plate is connected with a linear slide block (540) through a guide rail pad (539), the linear slide block (540) is slidably connected with a B linear guide rail (541) on the back of the C bottom plate (508), a D servo motor (529) is further mounted on the transverse movement mounting plate through an A motor support (530), the output end of the D servo motor (529) is connected with a ball screw (535) through a coupling (531), a screw nut (537) is mounted on the ball screw (535), the screw nut (537) is connected with the back of the C bottom plate (508) through a screw nut connecting block (538), the back of the C bottom plate (508) above the top end of the guide rail pad (539) on one side is mounted with a buffer pad (543) through a limiting support (544).

5. The photovoltaic cell inkjet printing apparatus of claim 4, wherein, The battery piece transfer assembly (7) comprises a pair of concertinas (703) installed on the table top (1), the concertinas (703) are provided with concertina stop edges (702) outside, the concertinas (703) are provided with lifting connecting plates (704) inside, the lifting connecting plates (704) are connected with the loading table connecting plates (708) at the top ends, the lifting connecting plates (704) and the loading table connecting plates (708) are provided with B reinforcing rib plates (5) at the side faces, a pair of vacuum edge loading tables (706) are provided on the loading table connecting plates (708) at intervals, a vacuum middle loading table (707) is provided between the two vacuum edge loading tables (706) at intervals, the gap between the vacuum middle loading table (707) and the two side vacuum edge loading tables (706) is matched with the width of the A elastic belt (207), the lifting connecting plates (704) below the concertinas (703) are installed on the lifting ends of the B linear module (712) driven by the E servo motor, the B linear module (712) is installed on the transverse moving ends of the linear motor module of the linear motor (710) through the B connecting plates (711), the B drag chain grooves (714) are installed on the bottom surfaces of the table top (1), the B drag chains (716) connected with the B connecting plates (711) through the B drag chain supports (701) are installed in the B drag chain grooves (714), and the B vacuum generators (715) are further installed on the side faces of the B drag chain grooves (714).

6. The photovoltaic cell inkjet printing apparatus of claim 5, wherein, The pre-solidification assembly (8) comprises B mounting plates (801) connected with the gantry supports (501), A lifting slides (802) connected with the B mounting plates (801) and provided with slide table knobs (805), the A lifting slides (802) are installed on the side faces of slide table connecting plates (804), the slide table connecting plates (804) are provided with transverse slides (803) with the slide table knobs (805) on the bottom surfaces, light source mounting plates (806) are slidably connected on the transverse slides (803), the light source mounting plates (806) are connected with pre-solidification light sources (806) through adjusting supports (810) at the bottom, and light shielding plates (808) are connected with the light source mounting plates (806) through rotating adjusting supports (807) at the side faces.

7. The photovoltaic cell inkjet printing apparatus of claim 6, wherein, The solidification assembly (9) comprises a pair of connecting bottom plates (901) installed on the table top (1), the connecting bottom plates (901) are connected with supports (902), the supports (902) are provided with B lifting slides (903) with fixing knobs on one side, the B lifting slides (903) are slidably connected with solidification light sources (905) on one side and fixed supports (906) on the other side, and the fixed supports (906) are detachably connected with the other supports (902) through screws.

8. The photovoltaic cell inkjet printing apparatus of claim 7, wherein, The printhead cleaning and ink recycling assembly (6) comprises a support seat (601) mounted on the table top (1), the top of the support seat (601) is provided with an ink receiving tray (603), the bottom of the support seat (601) is provided with an A mounting plate (602) on the inner side, the ink receiving tray (603) is provided with three recesses corresponding to the positions of the printheads (524), each recess is provided with a cleaning suction cup (604) on the side, the holes on the recesses are connected with ink suction pipelines (605), the ink suction pipelines (605) are connected with a gas distribution block (606) mounted on the A mounting plate (602), the gas distribution block (606) is connected with a recycling pipeline (611), the recycling pipeline (611) is connected with a recycling filter cartridge (610) below the table top (1), the recycling filter cartridge (610) is connected with an A vacuum generator (608), the A vacuum generator (608) is connected with an A electromagnetic valve (607), and the A vacuum generator (608) is also connected with a negative pressure gauge (612) on the A mounting plate (602) through a pipeline.

9. The photovoltaic cell inkjet printing apparatus of claim 8, wherein, The NG discharge assembly (10) comprises a C connecting plate (1001) mounted on the table top (1), the C connecting plate (1001) is connected with a B support plate (1018), one end of the B support plate (1018) is provided with a B motor support (1003), the B motor support (1003) is provided with an F servo motor (1004), the output end of the F servo motor (1004) is connected with a C driving wheel (1006), a pressure wheel (1009) is arranged beside the C driving wheel (1006), belt wheels (1013) are mounted at both ends of the B support plate (1018), the C driving wheel (1006), the pressure wheel (1009) and the belt wheels (1013) are sleeved with a B elastic belt (1012), the bottom surface of the B support plate (1018) is provided with a Bernoulli suction cup (1010), the C connecting plate (1001) is further provided with a B electromagnetic valve (1008), a filter (1002) and a speed regulating valve (1007) connected with a vacuum generating device, the side below one end of the B support plate (1018) is provided with a D bottom plate (1014), the side of the D bottom plate (1014) is provided with a side plate (1015), the bottom of the D bottom plate (1014) is connected with a height adjusting rod (1016), and the lower end of the height adjusting rod (1016) is mounted on the table top (1) through a mounting seat (1017).

Images