Automatic series welding equipment applied to photovoltaic cells and working method

Abstract

The invention provides automatic series welding equipment applied to photovoltaic battery pieces and a working method. The automatic series welding equipment comprises a rack, a feeding device, a carrying device, a circulating conveying device, more than two welding strip feeding devices, a series welding conveying mechanism and a cutting device, and the feeding device and the circulating conveying device are arranged at the two ends of the rack; the welding strip feeding devices are arranged on the two sides of the feeding devices, the carrying devices are arranged between the feeding devices and the circulating conveying device, the feeding devices are arranged on the two sides of the circulating conveying device, and the feeding devices and the circulating conveying device convey battery pieces and jigs to the carrying devices in the opposite directions correspondingly. The carrying device synchronously grabs and transfers battery pieces and jigs to the series welding conveying mechanism, the welding strip feeding device conveys welding strips to the battery pieces of the series welding conveying mechanism, the carrying device places the jigs on the battery pieces to press the welding strips, and after the series welding conveying mechanism welds the battery pieces, the cutting device cuts battery piece strings with preset lengths.

Description

Technical Field

[0001] The present invention relates to the technical field of solar cells, and in particular to an automatic string welding device and a working method applied to photovoltaic solar cells. Background Art

[0002] With the widespread application of solar energy, the solar photovoltaic panel industry has also flourished. When producing solar panels, multiple cells and welding strips need to be stacked on a welding conveyor line in a predetermined stacking method, and then transported to the welding position by the welding conveyor line to be welded into a cell string, and then the cell string and other components are assembled into one.

[0003] For example, the document with Chinese patent application number 202010038706.2 and publication date 2020.05.22 discloses an automatic loading IBC half-cell solar cell welding equipment and a welding method thereof, including a battery arrangement module, a battery welding module, a discharge conveyor and a battery string transfer module. The output end of the battery arrangement module is connected to the input end of the battery welding module. The battery arrangement module includes a feeding conveyor, a battery cell loading device, a first battery conveyor and a second battery conveyor. The battery welding module includes a solder strip feeding device, a solder strip transfer device, a photowelding device, a fixture reflow device, a third battery conveyor, a fixture conveyor and a press positioning fixture.

[0004] In the above-mentioned document, the battery arrangement module is used to realize the automatic arrangement of the battery cells one by one, and the battery welding module is used to realize the addition and welding of the welding tape, so as to realize the full automation of the string welding of solar cells. However, when string welding the battery cells, the welding tape, the battery cells and the jig need to cooperate with each other during the conveying process to realize the efficient string welding operation. If the welding tape is entangled or the battery cells and the jig cannot be conveyed synchronously, the battery cells cannot be welded efficiently, and it is impossible to detect whether the cutting is done during the cutting process, so the cutting reliability cannot be ensured. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic string welding device and working method applied to photovoltaic cells, which can enable the welding strip, the cell and the fixture to cooperate with each other during the conveying process, thereby improving the string welding efficiency of the cell and improving the reliability of cutting.

[0006] In order to achieve the above-mentioned purpose, the present invention provides an automatic string welding device for photovoltaic cells, comprising a frame, a loading device, a handling device, a circulating conveying device and two or more welding strip feeding devices, a string welding conveying mechanism, and a cutting device. The loading device and the circulating conveying device are arranged at both ends of the frame, the welding strip feeding device is arranged on both sides of the loading device, the handling device is arranged between the loading device and the circulating conveying device, the loading device is arranged on both sides of the circulating conveying device, the loading device and the circulating conveying device respectively convey the battery cell and the jig to the handling device in opposite directions, and the handling device At the end of the device, more than two adsorption members 1 and more than two adsorption members 2 are arranged, and a gap is arranged between the adsorption members 1 and 2. The adsorption members 1 and 2 on the transport device synchronously grab the battery cell and the jig and transfer them to the string welding conveying mechanism. After the transport device places the battery cell on the string welding conveying mechanism, the welding tape feeding device conveys the welding tape to the battery cell of the string welding conveying mechanism. The transport device places the jig on the battery cell to press the welding tape. After the string welding conveying mechanism welds the battery cell, the cutting device cuts the battery cell string of a preset length and detects whether the cutting device cuts the battery cell string.

[0007] The above structure can make the battery cells and the jigs be loaded separately from the two ends of the frame, so that the loading processes of the battery cells and the jigs do not interfere with each other, and prevent confusion during the transportation process from affecting the transportation. In this way, after the battery cells and the jigs are transported to the handling device, the battery cells and the jigs can be synchronously grabbed by the suction parts 1 and 2 of the handling device and transferred to the string welding conveying mechanism. During the transfer process, the welding tape is simultaneously conveyed to the string welding conveying mechanism by the welding tape feeding device. In this way, after the battery cells are placed on the string welding conveying mechanism, the welding tape is then conveyed to the battery cells, and then the jig is pressed against the battery cells, so that the welding tape, battery cells and jigs can cooperate with each other during the transportation process, avoiding confusion among the welding tape, battery cells and jigs during the transportation process and affecting the battery cell string welding efficiency. At the same time, the cutting device cuts the battery cell string and can also ensure whether the cutting has been completed, thereby ensuring the cutting effect of the battery cell string.

[0008] Another aspect of the present invention further provides a working method of an automatic string welding device applied to photovoltaic cells, comprising the following steps: S01 drives the material coil to rotate obliquely through the driving device, so as to facilitate winding out the soldering tape in the material coil, and make the soldering tape pass through the guide wheel assembly arranged on the lower left side of the material coil assembly. Since the material coils in the two adjacent groups of material discharging groups are on the same vertical line, and the vertical line forms an angle with the straight line where the guide wheel centers corresponding to the material coils in the two adjacent groups located on the same vertical line are located, the winding direction of the soldering tape in each group of material discharging groups can be adjusted through the guide wheel assembly, so that the soldering tapes in the adjacent material discharging groups are wound out to the dip soldering mechanism in different directions; S1 conveys the box filled with battery cells to a preset position close to the first conveying mechanism through the box conveying assembly and stops. At the same time, the third conveying assembly is driven to move horizontally through the third conveying module 1, and then the third conveying grabbing assembly is driven to move to the string welding conveying mechanism. Then, the third conveying assembly is driven to move in the vertical direction to grab the fixture on the string welding conveying mechanism, and then the fixture is transferred to the fourth conveying mechanism. S2 drives the first conveyor grabbing assembly to grab the battery cells in the material box through the first conveyor module, and then drives the first conveyor grabbing assembly to move to the second conveyor belt in the direction close to the second conveyor mechanism through the first conveyor module, and then drives the second conveyor belt to convey the battery cells in the direction close to the handling device through the second conveyor drive motor; at the same time, drives the fixture to convey in the direction close to the handling device through the fourth conveyor mechanism, so that the battery cells are conveyed to the handling device in opposite directions through the second conveyor belt and the fixture through the fourth conveyor mechanism; S3 drives the fixing frame 1 to move above the second conveyor belt through the robot arm, and drives the fixing frame 2 to move above the fourth conveyor mechanism. After the robot arm descends to a preset height, the two actions of the adsorption member 1 adsorbing the battery cell and the adsorption member 2 adsorbing the fixture are performed simultaneously. After adsorption, the battery cell and the fixture are moved to the top of the string welding conveyor mechanism by the robot arm. S4 first places the battery cell on the string welding conveying mechanism through the adsorption part 1, and then conveys the soldering tape that has passed the dip soldering mechanism to the battery cell. After the soldering tape reaches a preset length, the soldering tape is cut by the soldering tape shearing device, and then the jig is placed on the battery cell through the adsorption part 2, so that the jig presses the soldering tape, and then the battery cell and the soldering tape are string welded to form a battery cell string through the welding equipment arranged on the string welding conveying mechanism, and the battery cell string formed by welding is conveyed to the cutting device for cutting.

[0009] Furthermore, the step S0 also includes soaking the solder strip by a solder dipping mechanism, and the soaked solder strip is sheared by a shearing device and then conveyed to the string soldering conveying mechanism; Step S1 also includes: After the battery cells in the material box are grabbed, the material box conveying assembly continues to convey the material box to the transmission assembly, and then the material box on the transmission assembly is driven down to the same height as the material box recovery assembly by the material box lifting cylinder, and then the transmission assembly drives the material box to be conveyed to the material box recovery assembly for recycling. During this process, the conveying direction of the material box is opposite to the recovery direction of the material box, so that the material box can be recovered at the material box loading point, thereby improving the efficiency of reloading the battery cells into the material box.

[0010] The above method can convey the battery cells and the jig from both ends of the frame respectively, so that the conveying of the battery cells and the jig does not interfere with each other. In this way, during the conveying of the battery cells, the material box loaded with the battery cells can be quickly recovered, and the material box can be directly recovered to the material box loading place, thereby improving the efficiency of reloading the battery cells into the material box; and in the process of conveying the jig, the jig placed on the string welding conveying mechanism can be recycled and directly conveyed to the handling device, saving recycling time and cost; in this way, the battery cells on the second conveying mechanism and the jig on the fourth conveying mechanism can be simultaneously grasped by the handling device and transferred to the string welding conveying mechanism, thereby improving the synchronous conveying efficiency of the battery cells and the jig, so as to carry out the next string welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the transport device in the invention.

[0012] Figure 2 It is a schematic structural diagram of the transport device in the invention from another angle.

[0013] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0014] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0015] Figure 5 It is a schematic diagram of the structure of the present invention.

[0016] Figure 6 It is a structural schematic diagram of the material box conveying mechanism, the material box recovery mechanism, and the material box lifting mechanism in the present invention.

[0017] Figure 7 It is a schematic structural diagram of the first conveying mechanism in the present invention.

[0018] Figure 8 It is a schematic structural diagram of the second conveying mechanism in the present invention.

[0019] Fig. 9 It is a structural schematic diagram of the present invention from another angle.

[0020] Fig.10 It is a schematic diagram of the structure of the circulating conveying device in the present invention.

[0021] Fig.11 It is a schematic structural diagram of the circulating conveying device in the present invention from another angle.

[0022] Fig.12 for Figure 5 Enlarged view of center C.

[0023] Fig.13 for Figure 6 Enlarged view of point D in the middle.

[0024] Fig.14 for Fig.10 Enlarged view of point E in the middle.

[0025] Fig.15 It is a schematic diagram of the structure in which the material coil is placed on the discharge mechanism.

[0026] Fig.16 This is the main view of the discharging mechanism.

[0027] Fig.17 for Fig.15 Enlarged view of A1 in the middle.

[0028] Fig.18 for Fig.15 Enlarged view of point B1 in the middle.

[0029] Fig.19 for Fig.15 Enlarged view of C1 in the middle.

[0030] Fig. 20 It is the front view of the dip soldering mechanism.

[0031] Fig.21 It is a bottom view of the dip soldering mechanism.

[0032] Fig. 22 It is a top view of the dip soldering mechanism.

[0033] Fig.23 It is the front view of the cutting device.

[0034] Fig.24 for Fig.23 Enlarged view of point H in the middle.

[0035] Fig.25 for Fig.24 Enlarged view of J in the middle.

[0036] Fig.26 This is a structural schematic diagram of the cutting device from another perspective.

[0037] Fig. 27 It is a partial exploded view of the adjustment assembly and the first drive assembly.

[0038] Fig.28 Partial explosion of the cutting device Figure 1 .

[0039] Fig.29 Partial explosion of the cutting device Figure 2 . DETAILED DESCRIPTION

[0040] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] like Figures 1 to 29 As shown, an automatic string welding device for photovoltaic cells includes a frame e7, a feeding device, a handling device, a circulating conveying device and two or more welding ribbon feeding devices, a string welding conveying mechanism, and a cutting device. The feeding device and the circulating conveying device are arranged at both ends of the frame, and the handling device is arranged between the feeding device and the circulating conveying device. The feeding device includes a first conveying mechanism e1 and two or more material box conveying mechanisms e2, a material box recovery mechanism e3, a material box lifting mechanism e4, and a second conveying mechanism e5. The material box conveying mechanism e2 is arranged above the material box recovery mechanism e3. The material box conveying mechanism e2 includes a material box conveying base e6 and a material box conveying assembly. The bottom of the material box conveying assembly is connected to the frame e7 through the material box conveying base e6. The material box conveying assembly includes a material box conveying transmission shaft e8, a material box conveying drive motor (not shown in the figure) and two or more The material box conveying driving wheel e9, the material box conveying driven wheel (not marked in the figure) and the material box conveying transmission belt e10 are respectively arranged at the two ends of the material box conveying base e6, and the material box conveying driving wheel e9 and the material box conveying driven wheel are connected through the material box conveying transmission belt e10. The two ends of the material box conveying drive shaft e8 are respectively connected to the material box conveying driving wheel e9, and the output end of the material box conveying drive motor arranged on one side of the material box conveying base e6 is connected to the material box conveying transmission shaft e8; in this embodiment, each material box conveying base e6 is provided with a material box conveying transmission shaft e8, a material box conveying drive motor and two material box conveying driving wheels e9, a material box conveying driven wheel (not marked in the figure) and a material box conveying transmission belt e10, and the width between the material box conveying transmission belts e10 matches the width of the material box e11.

[0042] The material box recovery mechanism e3 includes a material box recovery base e12 and a material box recovery component. The bottom of the material box recovery component is connected to the frame through the material box recovery base e12. The material box recovery component includes a material box recovery transmission shaft e13, a material box recovery drive motor (not marked in the figure) and more than two material box recovery active wheels e15, a material box recovery driven wheel (not marked in the figure) and a material box recovery transmission belt e16. The material box recovery active wheel e15 and the material box recovery driven wheel are respectively arranged at the two ends of the material box recovery base e12. The material box recovery active wheel e15 and the material box recovery driven wheel are connected to the frame through the material box recovery base e12. The material box recovery drive belt e16 is connected for transmission, and both ends of the material box recovery drive shaft e14 are respectively connected to the material box recovery active wheel e15, and the output end of the material box recovery drive motor arranged on one side of the material box recovery base e12 is connected to the material box recovery drive shaft e12; in this embodiment, each material box recovery base e12 is provided with a material box recovery drive shaft e12, a material box recovery drive motor and two material box recovery active wheels e15, a material box recovery driven wheel and a material box recovery drive belt e16, and the width between the material box recovery drive belts e16 matches the width of the material box e11.

[0043] The material box lifting mechanism e4 is arranged at one end of the material box conveying mechanism e2 and the material box recovery mechanism e3, and the material box lifting mechanism e4 includes a material box lifting cylinder e17, a material box lifting fixed seat e18 and a transmission assembly. The material box lifting cylinder e17 is connected to the frame e7 through the material box lifting fixed seat e18, and the material box lifting fixed seat e18 is provided with a material box lifting slide rail e19, and the material box lifting slide rail e19 is movably sleeved with a material box lifting slider e20. The transmission assembly is arranged on the base e24, and the transmission assembly includes a transmission shaft e21, a driving motor and more than two driving wheels e22, a driven wheel and a transmission belt e23. The driving wheel e22 and the driven wheel are respectively arranged at both ends of the base e24, and the driving wheel e22 and the driven wheel are connected by the transmission belt e23. The two ends of the transmission shaft e21 are respectively The output end of the driving motor arranged on one side of the base e24 is connected to the transmission shaft e21, the material box lifting slider e20 is connected to the base e24, and the output end of the material box lifting cylinder e17 is connected to the extended end of the material box lifting slider e20; in this embodiment, each base e24 is provided with a transmission shaft e21, a driving motor and two driving wheels e22, a driven wheel and a transmission belt e23, the width between the transmission belts e23 matches the width of the material box e11, and the length of the transmission belt e23 matches the length of the material box e11, ensuring that one material box e11 is just delivered to the material box lifting mechanism e4, and limit sensors e25 are provided at the upper and lower ends of the material box lifting slide rail e19, which are used to prevent the material box lifting slider e20 from detaching from the material box lifting slide rail e19.

[0044] With the above-mentioned structural arrangement, the material box e11 can be conveyed to a preset position by the material box conveying assembly and then stopped. After the battery cells e111 in the material box e11 are grabbed, the material box conveying assembly continues to convey the material box e11 to the transmission assembly, and then the material box e11 on the transmission assembly is driven down to the same height as the material box recovery assembly by the material box lifting cylinder e17, and then the transmission assembly drives the material box e11 to be conveyed to the material box recovery assembly for recovery. During this process, the conveying direction of the material box e11 is opposite to the recovery direction of the material box e11, so that the material box can be recovered at the material box loading point, thereby improving the efficiency of reloading the battery cells into the material box.

[0045] One end of the first conveying mechanism e1 is located above the material box conveying mechanism e2. The first conveying mechanism e1 includes a first conveying fixed seat e26, a first conveying drive motor e27, a first conveying module e28 and more than two first conveying grabbing components. The first conveying fixed seat e26 is connected to the frame e7. The first conveying module e28 is arranged on the first conveying fixed seat e26. The output end of the first conveying drive motor e27 is connected to the first conveying module e28. The first conveying module e28 is provided with a first conveying slider slidably connected to the first conveying module e28. The first conveying grabbing components are symmetrically arranged. Located on both sides of the first conveying module e28, the first conveying grabbing assembly includes a first conveying driving cylinder e30, a first conveying connecting plate e31 and a first conveying connecting frame e32. One end of the first conveying connecting plate e31 is connected to the first conveying slider. The first conveying driving cylinder e30 is arranged at the other end of the first conveying connecting plate e31. The output end of the first conveying driving cylinder e30 is connected to the first conveying connecting frame e32. The first conveying connecting frame e32 is provided with more than two first conveying suction cups e33 arranged side by side; the first conveying suction cup e33 is connected to the external air pipe, and the air pipe is connected to the vacuum pumping equipment.

[0046] The second conveying mechanism e5 is symmetrically arranged below the first conveying mechanism e1 with respect to the first conveying mechanism e1. The second conveying mechanism e5 includes a second conveying fixed seat e34, a second conveying driving motor e35, a second conveying belt e36, a second conveying driving wheel e37, a second conveying driven wheel e38, a second conveying transmission belt e39 and two or more second conveying shafts e40. The second conveying fixed seat e34 is connected to the frame e7. The second conveying shafts e40 are arranged at both ends of the second conveying fixed seat e34. Both ends of the second conveying shaft e40 are rotatably connected to the second conveying fixed seat e34 through second conveying bearings. The second conveyor belt e36 is sleeved on the second conveyor shaft e40, one end of the second conveyor shaft e40 is connected to the second conveyor driven wheel e38, the second conveyor driving wheel e37 is connected to the output end of the second conveyor drive motor e35 arranged on one side of the second conveyor fixed seat e34, and the second conveyor driving wheel e37 is connected to the second conveyor driven wheel e38 through the second conveyor transmission belt e39; in this embodiment, the second conveyor belt e36 is provided with a vacuum adsorption hole, which is used to adsorb the battery cell e111 placed on the second conveyor belt to prevent the battery cell e111 from swinging and deviating from the second conveyor belt e36 during transportation.

[0047] The above structure is arranged so that the battery cells in the material box can be grasped by the first conveying grasping assembly, and then the first conveying module e28 is driven by the first conveying driving motor e27, so that the first conveying slider slides in the first conveying module e28 and drives the first conveying grasping assembly to move, and the first conveying driving cylinder e30 can adjust the height of the grasped battery cell in the vertical direction, so that the first conveying grasping assembly transfers the battery cell e111 to the second conveyor belt e36, and then conveys the battery cell e111 to the handling device through the second conveyor belt e36.

[0048] The handling device is arranged between the loading device and the circulating conveying device, and includes a mechanical arm, which is installed on the support seat z1. A connecting rod is provided on the mechanical arm, and the connecting rod is installed at one end away from the support seat z1. The mechanical arm includes a fixed arm z2, a rotating arm z3 and a connecting arm z4. One end of the fixed arm z2 is fixed on the support seat z1, one end of the rotating arm z3 is rotatably connected to the fixed arm z2, and the other end of the rotating arm z3 is rotatably connected to the connecting arm z4. A driving motor (not shown in the figure) is installed in the connecting arm z4. In this embodiment, the upper end of the connecting rod is set as a screw rod z5, and the lower end of the connecting rod is set as a cylinder z6. A screw nut z7 is provided at one end of the arm z4 away from the rotating arm z3, and the output end of the driving motor is connected to the screw nut z7 through a transmission belt. The screw nut z7 is sleeved on one end of the screw z5, and the other end of the screw z5 is embedded in the cylinder z6 and is rotatably connected to the cylinder z6. The bottom of the cylinder z6 is fixedly connected to the fixed frame z8, so that the screw nut z7 can be driven to rotate by the driving motor, and then the screw z5 can be lifted and lowered in the vertical direction, thereby adjusting the height of the fixed frame, so that the adsorption member z11 and the adsorption member z12 on the fixed frame can respectively absorb the battery cell e111 and the fixture e22 after adjusting to the appropriate height.

[0049] In this embodiment, it also includes a fixed frame, more than two adsorption members z11 and adsorption members z12, the fixed frame includes a fixed frame z8 and a fixed frame z9, the fixed frame z8 is arranged below the fixed frame z9 and is connected with the fixed frame z9 to form a whole, the middle position of the fixed frame z9 is a hollow structure, the bottom of the cylinder z6 passes through the hollow structure of the fixed frame z9 and is fixedly connected to the fixed frame z8, so that the cylinder z6, the fixed frame z8 and the fixed frame z9 are connected to form a whole, and a step z10 is provided on the fixed frame z8 below the connection between the fixed frame z8 and the fixed frame z9, specifically, one side of the bottom of the fixed frame z8 is recessed from the lower end surface of the fixed frame to the upper end surface of the fixed frame to form a step z10, the width of the step z10 matches the width of the jig e22, and the step z10 is used to accommodate the jig e22 absorbed by the adsorption member z12.

[0050] like Figure 1As shown, the adsorption member z11 is connected to the bottom of the fixing frame z8. Specifically, the adsorption member z11 is fixedly connected to the other side of the bottom of the fixing frame z8. The ends of the adsorption member z11 are in the same plane. The adsorption member z12 is arranged at both ends of the fixing frame z9. The two ends of the fixing frame z9 located above the step z10 extend outwardly in the horizontal direction to form a fixed end z91. The adsorption member z12 is arranged on the fixed end z91. In this embodiment, two adsorption members are arranged on each fixed end z91. Two adsorbents z12 are arranged side by side along the width direction of the fixing frame z9, and a proximity sensor z15 is provided between the adsorbents z12. The lower end of the adsorbent z12 and the lower end of the proximity sensor z15 are in the same plane, so that when the proximity sensor z15 detects the jig, the adsorbent z12 can absorb the jig e22, so that the jig e22 just stays in the step z10. In this embodiment, the adsorbent z11 is a vacuum suction cup, and the adsorbent z12 is an electromagnet.

[0051] In this embodiment, since the fourth conveying mechanism for conveying the jig is different in position and height from the second conveying mechanism for conveying the battery cell, in order to meet the requirement of synchronously sucking the battery cell e111 and the jig e22, the plane where the lower end of the adsorption component z12 is located is higher than the plane where the lower end of the adsorption component z11 is located, and the height difference between the lower end of the adsorption component z12 and the lower end of the adsorption component z11 matches the height difference between the fourth conveying mechanism and the second conveying mechanism, thereby achieving simultaneous suction, so that after the adsorption component z12 absorbs the jig e22, the jig e22 is accommodated in the step z10, and the battery cell e111 and the jig e22 do not interfere with each other after being sucked.

[0052] The circulating conveying device includes more than two third conveying mechanisms e41 and fourth conveying mechanisms e42. The fourth conveying mechanism e42 is arranged at the bottom of the third conveying mechanism e41. The fourth conveying mechanism e42 and the third conveying mechanism e41 are symmetrically arranged about the handling device. A string welding conveying mechanism e43 is arranged on one side of the fourth conveying mechanism e42. There are two third conveying mechanisms e41, and the two third conveying mechanisms e41 are symmetrically arranged. The third conveying mechanism e41 includes a third conveying fixed seat e44, a third conveying module one e45, a third conveying drive motor one e46, a third conveying assembly, a third conveying module two e47, a third conveying drive motor two e48 and a third conveying grabbing assembly. The third conveying fixed seat e44 is connected to the machine The third conveying module e45 is arranged on the third conveying fixed seat e44, the output end of the third conveying driving motor e46 is connected to the third conveying module e45, the third conveying module e45 is provided with a third conveying slider e1 which is slidably connected to the third conveying module e45, the third conveying slider e1 is connected to the third conveying assembly, the third conveying assembly includes a third conveying driving cylinder e49, a third conveying fixed seat e50, a third conveying connecting plate e51 and a third conveying slider e52, the third conveying fixed seat e50 is connected to the third conveying slider e1, the third conveying driving cylinder e49 is arranged on the third conveying fixed seat e50, the output end of the third conveying driving cylinder e49 is connected to the third conveying connecting plate e52 51 is connected, a third conveying fixed seat 3 e50 is provided with a third conveying slide rail 3 e53, a third conveying slide block 3 e52 is slidably connected to the third conveying slide rail 3 e53, a third conveying connecting plate 3 e51 is connected to the third conveying slide block 3 e52, a third conveying module 2 e47 is connected to the third conveying connecting plate 3 e51 through a third conveying connecting plate 2 e54, an output end of a third conveying driving motor 2 e48 is connected to the third conveying module 2 e47, a third conveying slide block 2 e57 is provided on the third conveying module 2 e47 and is slidably connected to the third conveying module 2 e47, a third conveying grabbing assembly is connected to the third conveying slide block 2 e57, and the third conveying grabbing assembly includes a third conveying connecting frame e55 and two or more third conveying fixed frames e56, the upper end of the third conveying connecting frame e55 is connected to the third conveying sliding block 2 e57, and the lower ends of the third conveying connecting frame e55 are respectively connected to the third conveying fixed frame e56 on both sides. The third conveying fixed frame e56 is provided with more than two third conveying suction cups e58, and the third conveying suction cups e58 are connected to the external air pipe, and the air pipe is connected to the vacuum pumping equipment, so that the third conveying assembly can be driven to move horizontally through the third conveying module 1 e45, and then the third conveying grabbing assembly can be driven to move between the fourth conveying mechanism e42 and the string welding conveying mechanism e43. Through the action of the third conveying assembly, the third conveying grabbing assembly can be driven to move in the vertical direction to adjust the height difference between the fourth conveying mechanism e42 and the string welding conveying mechanism e43.The third conveying module e47 can drive the third conveying grabbing assembly to move in the longitudinal direction. After moving in three different dimensional directions, the third conveying grabbing assembly can accurately grab the jig e22 on the string welding conveying mechanism and transfer it to the fourth conveying mechanism for recycling. There is no need for additional manual mobile phone and then re-transport to the string welding conveying mechanism, which improves efficiency.

[0053] The fourth conveyor e42 is provided in two, and the two fourth conveying mechanisms e42 are symmetrically arranged below the third conveying fixed seat e44. The fourth conveying mechanism e42 has the same structure as the above-mentioned material box conveying mechanism e2, which will not be repeated here.

[0054] The solder strip feeding device is arranged on both sides of the feeding device, and the solder strip feeding device includes a discharging mechanism and a solder dipping mechanism. The discharging mechanism includes a hanging plate 1, a supporting wheel assembly, a tensioning wheel assembly and more than two discharging groups 2. The hanging plate 1 is provided with two, and a discharging area 3 is provided on the hanging plate 1. The two adjacent discharging groups 2 are arranged in parallel in the discharging area 3. The discharging group 2 includes more than two solder strip unwinding assemblies. In this embodiment, as Figure 2 As shown, three groups of discharging groups 2 are provided in the discharging area 3, and each discharging group 2 is provided with four welding ribbon unwinding assemblies, and the welding ribbon unwinding assembly includes a guide wheel assembly 5 and a material coil assembly 6, and the guide wheel assembly 5 is arranged at the lower left side of the material coil assembly 6, as shown in FIG. Figure 3 As shown, the guide wheel assembly 5 includes a guide wheel 51, a mounting seat three 52, a fixed shaft three 53 and two limit blocks one 54. The mounting seat three 52 is fixed on one side of the hanging plate 1, one end of the fixed shaft three 53 is fixed on the mounting seat three 52, and the other end of the fixed shaft three 53 extends outward perpendicular to the hanging plate 1 to form a free end. The guide wheel 51 is sleeved on the fixed shaft three 53, and the two limit blocks one 54 are respectively sleeved on the two ends of the guide wheel 51, so as to facilitate the welding ribbon to adjust the direction of winding out of the material coil assembly 6 through the guide wheel 51, so that it can be wound around the supporting wheel without being entangled with the welding ribbon of the adjacent material coil assembly 6. At the same time, the limit block one 54 can limit the movement of the guide wheel 51 in the axial direction of the fixed shaft three 53.

[0055] The material roll assembly 6 includes a material roll 61, a driving device, a fixed shaft four 62 and two limit blocks two 63. The driving device is fixed on the other side of the hanging plate 1. The driving device includes a driving motor 64 and a motor mounting seat 65. The motor mounting seat 65 is fixed on the other side of the hanging plate 1. The driving motor 64 is fixed on the motor mounting seat 65. The output end of the driving motor 64 is fixedly connected to one end of the fixed shaft four 62. The other end of the fixed shaft four 62 extends outward perpendicular to the hanging plate 1 to form a free end. The material roll 61 is sleeved on the fixed shaft four 62. A welding strip monitor 66 is provided above the material roll 61 to monitor whether there is a welding strip on the material roll 61. In this way, when there is no welding strip on the material roll 61, it can be replaced in time. The two limit blocks two 63 are respectively sleeved on the two ends of the material roll 61, so that the driving device can drive the material roll 61 to rotate, so that the welding strip is wound out of the material roll 61, and the movement of the material roll in the axial direction of the fixed shaft four 62 can be limited by the limit blocks two 63.

[0056] In a vertical plane parallel to the hanging plate 1, a straight line L1 passing through the centers of all guide wheels 51 in the same discharge group 2 is parallel to a straight line L2 passing through the centers of all material rolls 61. A straight line L1 passing through the centers of all guide wheels 51 in the same discharge group 2 and a horizontal line L3 passing through the centers of the guide wheels 51 are tilted downward. In this embodiment, an angle a is formed between the straight line L1 and the horizontal line L3, and a ranges from 5° to 10°. The material rolls 61 in the discharge groups 2 of two adjacent groups are on the same vertical line L4, and the vertical line L4 is perpendicular to the discharge groups 2 of the two adjacent groups. The straight line L5 at the center of the guide wheel 51 in group 2 and corresponding to the material coil 2 located on the same vertical line is tilted inward. In this embodiment, the angle formed by the vertical line L4 and the straight line L5 is b, and the value range of b is 5°~10°, so that the discharge group 2 can be tilted with respect to the horizontal line L3, so that the welding ribbon can be more easily wound out from the material coil assembly 6, and the winding direction of the welding ribbon can be adjusted through the guide wheel assembly 5, so that the winding directions of the welding ribbons in adjacent discharge groups 2 are different, thereby effectively preventing the welding ribbon from being entangled during the process of being wound out to the support wheel assembly 7.

[0057] The support wheel assembly 7 is provided with more than two, and the more than two support wheel assemblies 7 are on the same straight line to form a welding strip supporting area 8. In the present embodiment, the support wheel assembly 7 is provided with four, and the support wheel assembly 7 is arranged below the discharge area 2. The support wheel assembly 7 comprises a mounting seat 71, a fixed shaft 72 and a support wheel 73. The mounting seat 71 is fixedly arranged on one side of the hanging plate 1, one end of the fixed shaft 72 is fixed on the mounting seat 71, and the other end of the fixed shaft 72 extends outward perpendicular to the hanging plate 1 to form a free end, and the support wheel 73 is sleeved on the fixed shaft 72. The support wheel 73 is provided with more than two welding strip grooves 74 matching the welding strip, so as to prevent the welding strips wound from different welding strip unwinding assemblies from being entangled when passing through the same support wheel 73, and at the same time facilitate the welding strip wound from the welding strip unwinding assembly 6 to pass through the support wheel 73, guide the welding strip, change the direction of the welding strip, and make the welding strip pass through the support wheel 73 to enter the next process.

[0058] A fixing plate 11 is provided on one side of the hanging plate 1, and the fixing plate 11 is arranged on one side of the welding strip supporting area 8. More than two tensioning wheel assemblies 9 are provided on the fixing plate 11, and the tensioning wheel assembly 9 is arranged along the length direction of the fixing plate 11. The tensioning wheel assembly 9 includes a mounting seat 2 91, a fixing shaft 2 92 and a tensioning wheel 93. The mounting seat 2 91 is fixedly arranged on the fixing plate 11, one end of the fixing shaft 2 92 is fixed on the mounting seat 2 91, and the other end of the fixing shaft 2 92 extends outward perpendicular to the fixing plate 11 to form a free end, and the tensioning wheel 93 is sleeved on the fixing shaft 2 92. More than two accommodating grooves 94 matching the welding strip are provided on the tensioning wheel 93, which can prevent the welding strips wound from different support wheel assemblies 7 from being entangled when passing through the same tensioning wheel 93, and at the same time, it is convenient for the welding strip to change direction after passing through the welding strip supporting area 8, and the tensioning wheel assembly 9 on the fixing plate 11 is used to prevent the welding strip from being loose.

[0059] The soldering mechanism includes a bracket 2D and a material barrel (not shown in the figure), a soaking tank 1D is provided on the bracket 2D, solder flux is placed in the soaking tank 1D, the material barrel (not shown in the figure) is used to store the solder flux, the soaking tank 1 is provided with a circulation component, the circulation component includes a circulation outlet 12D and a circulation inlet 11D, the circulation outlet 12D is provided on one side of the bottom of the soaking tank 1D, the circulation inlet 11D is provided on the outer side of the soaking tank 1D wall, the circulation outlet 12D is connected to the material barrel (not shown in the figure), a circulation device is provided on one side of the bracket 2D, and the circulation device includes a circulation pump 2 1D, a circulation pump inlet 212D and a circulation pump outlet 211D are provided on the circulation pump 21D, the circulation pump inlet 212D is connected to a material barrel (not shown in the figure), the circulation pump outlet 211D is connected to the circulation inlet 11D, the immersion tank 1D is filled with solder flux, and the solder strip is in contact with the solder flux through the immersion tank 1D, thereby completing the processing of the solder strip. As the solder strip is processed, the solder flux in the immersion tank 1D will decrease, so it is necessary to connect the immersion tank 1D to the material barrel (not shown in the figure), so that the immersion tank 1D can replenish the solder flux or replace the solder flux in time; A circulation outlet 12D is provided at the bottom of the immersion tank 1D, a circulation inlet 11D is provided on the outer side of the immersion tank 1D wall, a circulation pump 21D is provided on one side of the bracket 2D, a circulation pump inlet 212D and a circulation pump outlet 211D are provided on the circulation pump 21D, the circulation outlet 12D is connected to a material barrel (not marked in the figure), the circulation pump inlet 212D is connected to the material barrel (not marked in the figure), and the circulation pump outlet 211D is connected to the circulation inlet 11D. When the immersion tank 1D is processing the soldering strip, in order to prevent the flux from precipitating in the immersion tank 1D, a circulation component and a circulation device are provided, and when the flux is circulating, the circulation outlet 12D first flows back to the material barrel (not marked in the figure), and then the circulation pump works, so that when the flux flows from the material barrel (not marked in the figure) into the circulation pump inlet 212D, The flux can be made to flow in the barrel (not shown in the figure), and the flux can be prevented from forming precipitation at the bottom of the barrel (not shown in the figure), which is helpful for the uniformity of the flux, thereby preventing the chemical composition of the flux from changing when the barrel (not shown in the figure) stores the flux, thereby shortening the service life; the flux in the immersion tank 1D flows back to the barrel (not shown in the figure), and then when it reaches the circulation pump 21D, it is connected to the circulation inlet 11D through the circulation pump outlet 211D, so that the flux flows back to the immersion tank 1D, so the flux will flow out of the immersion tank 1D and then flow into it again. In this process, the flux will flow in the immersion tank 1D, so the flux will not stay at the bottom of the immersion tank 1D for a long time, avoiding the formation of precipitation, so that the flux is in the best working state, thereby improving the processing efficiency and processing effect of the soldering strip.

[0060] The bottom of the soaking tank 1D is also provided with a water outlet 13D, a liquid replenishing port 14D and a first liquid discharge port 15D. The water outlet 13D is provided at the bottom of the soaking tank 1D. When the soaking tank 1D needs to be cleaned, the flux is discharged through the water outlet 13D, and then the soaking tank 1D is cleaned; a liquid replenishing port 14D is provided on one side of the bottom of the soaking tank 1, and the liquid replenishing port 14D is connected to the material barrel (not marked in the figure). After cleaning the soaking tank 1D, when the flux needs to be injected into the soaking tank 1D , the flux is injected into the immersion tank 1D through the liquid replenishing port 14D; a first liquid discharge port 15D is provided on the other side of the bottom of the immersion tank 1D, and the first liquid discharge port 15D is connected to the material barrel (not marked in the figure). When there is too much flux inside the immersion tank 1, the flux can be returned to the material barrel (not marked in the figure) through the first liquid discharge port 15D, so that the flux concentration in the immersion tank 1D is maintained at the required level, ensuring that the flux can play an effective role when the solder strip is processed in the immersion tank 1D.

[0061] A second liquid discharge port 16D is provided on one side of the circulation inlet 11D. A second liquid discharge port 16D is also provided on one side of the circulation inlet 11D. The second liquid discharge port 16D is connected to a material barrel (not shown in the figure). When the flux concentration is adjusted, the flux can flow out to the material barrel (not shown in the figure) through the second liquid discharge port 16D.

[0062] The inside of the immersion tank 1 is concave along the direction of the water outlet 13D. By making the inside of the immersion tank 1D concave along the water outlet direction, the flux can be removed more quickly when the immersion tank 1D needs to be cleaned.

[0063] A front guide wheel 3D is installed at one end of the immersion tank 1D, a middle guide wheel 4D is provided in the middle part of the length direction of the immersion tank 1D, and a rear guide wheel 5D is provided at the end of the immersion tank 1 away from the front guide wheel 3D. The soldering ribbon moves in the immersion tank 1D under the traction of the front guide wheel 3D, the middle guide wheel 4D and the rear guide wheel 5D in the immersion tank 1D, so that the soldering ribbon contacts the flux, and then the soldering ribbon moves to the outside of the immersion tank 1D.

[0064] Pressure rods 31D are provided at both ends above the front guide wheel 3D, and pressure rods 31D are provided at both ends above the rear guide wheel 5D. Through the setting of the pressure rods 31D, the height of the welding strip entering and exiting the immersion tank 1D is limited so as to complete the immersion smoothly.

[0065] A detector 6D is arranged between the rear guide wheel 5D and the middle guide wheel 4D. A detector 6D is arranged between the rear guide wheel 5D and the middle guide wheel 4D of the immersion tank 1D. It can check the depth of the flux in the immersion tank 1D and timely add the flux or discharge the flux to meet the immersion depth of the solder strip.

[0066] A handle 7D is installed on one side of the soaking tank 1D along the length direction, and a handle 7D is installed on one side of the soaking tank 1D to facilitate the installation and subsequent maintenance of the soaking tank 1D.

[0067] The material barrel (not shown in the figure) is used to store flux as described in document CN 215624286 U, and is provided with connection positions with the circulation outlet of the immersion tank, the liquid replenishing port, the first liquid discharge port, the second liquid discharge port, and the circulation pump inlet, so that the flux can reach the material barrel through the circulation outlet, the first liquid discharge port and the second liquid discharge port, and the flux can reach the liquid replenishing port and the circulation pump inlet through the material barrel.

[0068] In this embodiment, the welding equipment and the welding ribbon shearing device arranged in the string welding conveying mechanism are both prior art and will not be described in detail here.

[0069] The cutting device comprises a frame 1B, a front guide mechanism 2B and a rear guide mechanism 4B are respectively arranged on both sides of the frame 1B, a middle guide mechanism 3B is arranged between the front guide mechanism 2B and the rear guide mechanism 4B, the middle guide mechanism 3B comprises a moving seat 35B, a moving assembly 5B is arranged between the moving seat 35B and the frame 1B, a conveyor belt 6B is sleeved between the front guide mechanism 2B, the middle guide mechanism 3B and the rear guide mechanism 4B, a moving frame 31B and an adjusting assembly 33B are arranged on the middle guide mechanism 3B, and a cutting device 31B is arranged on the moving frame 31B. 2B and a detection device, the detection device includes a receiver and a transmitter, the receiver and the transmitter are correspondingly arranged on both sides of the mobile frame 31B, the transmitter and the receiver form a detection channel, a cutter device 32B is arranged above the detection channel, the cutter device 32B includes a driving cylinder 321B and a cutter assembly, the cutter assembly is connected to the output shaft of the driving cylinder 321B, a front guide mechanism 2B, a middle guide mechanism 3B and a rear guide mechanism 4B are respectively arranged on the frame 1B, and a sensor is sleeved on the front guide mechanism 2B, the middle guide mechanism 3B and the rear guide mechanism 4B The conveyor belt 6B, when the welding strip moves to the front guide mechanism 2B, the conveyor belt 6B can move the welding strip from the front guide mechanism 2B to the middle guide mechanism 3B and the rear guide mechanism 4B in sequence, and complete the cutting of the welding strip in the middle guide mechanism 3B. The segmented guide mechanism makes it easier to maintain and replace parts, and a moving component 5B and a moving frame 31B are arranged in the middle guide mechanism 3B. The moving component 5B can help adjust the tension of the conveyor belt 6B, and there are receivers and transmitters on both sides of the moving frame 31B, and the transmitter and the receiver form a detection channel. A driving cylinder 321B and a cutting knife assembly are arranged above the detection channel. The cutting knife assembly is connected to the output shaft of the driving cylinder 321B. The transmitter emits a beam of light, which passes through the detection channel and is received by the receiver. When the driving cylinder 321B drives the cutting knife assembly to move and blocks the light, the light signal received by the receiver changes, thereby knowing that the cutting knife assembly has reached the preset position, and then knowing the cutting situation of the welding strip and has been cut. Then the cutting device can be controlled to move upward, and specifically, the driving motor of the cutting device can be started manually to move upward.

[0070] In this embodiment, the transmitter is an infrared transmitter, and the receiver is an infrared receiver. The infrared transmitter emits a laser and then receives the infrared light through the receiver to form a detection channel. The transmitter and the receiver are located at diagonal positions of the movable frame, and the positions where the transmitter and the receiver emit light correspond to the upper surfaces of the cutting device and the cloth to be cut on the conveyor belt, so that the cutting situation can be accurately detected. The emission principle of the transmitter and the receiving principle of the receiver are prior art and will not be repeated here.

[0071] The mobile frame 31B includes a cutting table 313B, a front plate 312B and an upper plate 311B. The cutting table 313B is arranged above the base 34B. The upper plate 311B is provided with a driving cylinder 321B. The output shaft of the driving cylinder 321B passes through the upper plate 311B. Guide rails 3121B are arranged on both sides of the front plate 312B. The guide rails 3121B are respectively located on both sides of the output shaft of the driving cylinder 321B. The cutter assembly includes a cutter seat 322B and a cutter body 323B. The top of the seat 322B is connected to the output shaft of the driving cylinder 321B, and the bottom of the cutter seat 322B is connected to the cutter body 323B. The detection channel is located above the cutting table 313B. When the output shaft of the driving cylinder 321B drives the cutter seat 322B to move, the cutter seat 322B drives the cutter body 323B to move, so that the cutter body 323B can cut the welding strip, and when the cutter body 323B completely cuts the welding strip, it will completely block the light in the detection channel.

[0072] The output shaft of the driving cylinder 321B is provided with a first disc 3211B and a second disc 3212B, the cutter seat 322B is provided with a notch 3221B, a protrusion 3222B is provided above the notch 3221B, the first disc 3211B is sleeved in the notch 3221B, the second disc 3212B abuts against the upper surface of the protrusion 3222B, the output shaft of the driving cylinder 321B is provided with a first disc 3211B and a second disc 3212B, the cutter seat 322B is provided with a notch 3221B, the notch 3221B is provided with a protrusion 3222B, the first disc 3211B is sleeved in the notch 3221B, the second disc 3212B abuts against the upper surface of the protrusion 3222B, A first disk 3211B is provided inside 221B, the lower surface of the first disk 3211B abuts against the lower surface of the notch 3221B, the upper surface of the first disk 3211B abuts against the lower surface of the protrusion 3222B, and the lower surface of the second disk 3212B abuts against the upper surface of the protrusion 3222B. The arrangement of the first disk 3211B, the second disk 3212B and the notch 3221B makes the output shaft of the driving cylinder 321B firmly connected to the cutter seat 322B, thereby better driving the movement of the cutter seat 322B.

[0073] First sliding members 3223B are provided on both sides of the cutter seat 322B, and the first sliding members 3223B are slidably connected to the guide rail 3121B. The first sliding members 3223B are slidably connected to the guide rail 3121B. When the output shaft of the driving cylinder 321B drives the cutter seat 322B to move, the cutter seat 322B moves along the guide rail 3121B.

[0074] The adjusting assembly 33B includes an adjusting rod 332B and an adjusting bolt 332B. The adjusting bolt 332B abuts against the upper surface of the base 34B. The adjusting bolt 332B is threadedly connected to the adjusting rod 332B. The base 34B is provided with a groove 343B. The fourth roller 341B is provided in the groove 343B. The adjusting rod 332B is fixedly connected to the fourth roller 341B. A tensioning wheel is rotatably provided on the fourth roller 341B. A conveyor belt 6B is provided outside the tensioning wheel. The adjusting bolt 332B is connected to the adjusting rod 33 2B is threadedly connected, the adjusting rod 332B is fixedly connected to the fourth roller 341B, when the adjusting bolt 332B is rotated, the adjusting rod 332B can move upward or downward relative to the adjusting bolt 332B, and when the adjusting rod 332B moves, it drives the fourth roller 341B to move in the groove 343B. During the long-term use of the conveyor belt 6B, if the conveyor belt 6B is found to be loose, the position of the fourth roller 341B can be adjusted by rotating the adjusting bolt 332B, so that the conveyor belt 6B is tensioned.

[0075] The front guide mechanism 2B includes a front guide seat 21B, a first drive assembly 22B, a first transmission shaft, a second roller 24B and a third roller 25B. The front guide seats 21B are respectively arranged on both sides of the frame 1B, a first sleeve seat 211B is arranged above the front guide seat 21B, the first transmission shaft is sleeved between the first sleeve seats 211B, the first drive assembly 22B is connected to the first transmission shaft in transmission, in this embodiment, the first drive assembly 22B is connected to the first transmission shaft through a belt, the second roller 24B is arranged below the first transmission shaft, and the third roller 25B is arranged below the second roller 24B. The middle guide mechanism 3B includes a base 34B, a fourth roller 341B and a fifth roller 342B. The base 34B is respectively arranged on both sides of the movable seat 35B, the fourth roller 341B is arranged in the middle of the base 34B, and the fifth roller 342B is respectively arranged on both sides above the fourth roller 341B. The rear guide mechanism 4B includes a rear The guide seat 41B, the sixth roller 42B and the seventh roller 43B, the rear guide seat 41B are respectively arranged on both sides of the frame 1B, the sixth roller 42B is sleeved on the upper part of the rear guide seat 41B, and the seventh roller 43B is arranged below the sixth roller 42B, the first rotating shaft 24B is rotatably connected with the first sleeve seat 211B, the inner side surface of the conveyor belt 6B passes through the first rotating shaft 24B to the fifth roller 342B, and then the outer side surface of the conveyor belt 6B passes through the fourth roller 341B, and then the inner side surface of the conveyor belt 6B passes through another fifth roller 342B from top to bottom through the sixth roller 42B and the seventh roller 43B to reach the third roller 25B, and then the outer side surface of the conveyor belt 6B reaches the second roller 24B, and then the inner side surface of the conveyor belt 6B reaches the first transmission shaft again, completing the closed-loop rotation of the conveyor belt 6B, so that the conveyor belt 6B can rotate between the front guide mechanism 2B, the middle guide mechanism 3B and the rear guide mechanism 4B.

[0076] The first driving assembly 22B includes a first driving body 221B, a first belt 223B and a first gear 222B. The first gear 222B is connected to the first transmission shaft. The first belt 223B is sleeved between the first driving body 221B and the first gear 222B. The first driving body 221B drives the first gear 222B to rotate through the first belt 223B. The first gear 222B is fixedly connected to the first rotating shaft 24B, that is, the first gear 222B can rotate to drive the first rotating shaft 24B to rotate, thereby driving the transmission belt to rotate.

[0077] The moving assembly 5B includes a second motor 51B, a screw rod 53B and a second sleeve seat 52B. The second sleeve seat 52B is respectively arranged on both sides of the frame 1B. The output shaft of the second motor 51B is connected to the screw rod 53B. The screw rod 53B is sleeved between the two second sleeves. The moving seat 35B is sleeved on the screw rod 53B. The screw rod 53B is rotatably connected to the second sleeve. The moving seat 35B is rotatably connected to the screw rod 53B. The screw rod 53B can be driven to rotate by the second motor 51B, so that the screw rod 53B rotates in the moving seat 35B, forming a structure of a screw rod and a nut, and then the moving seat 35B moves relative to the direction of the screw rod 53B.

[0078] Second guide rails 3121 are arranged on both sides of the screw rod 53B, second sliding members are arranged on both sides of the bottom of the moving seat 35B, the second sliding members are slidably connected to the second guide rails 3121, a stopper is also arranged on one side of the moving seat 35B, and a second sensor 11B is arranged on the side of the stopper corresponding to the frame 1B. The second sensor 11B is a photoelectric switch sensor. When the second motor 51B drives the moving seat 35B to move, the moving seat 35B moves along the direction of the second guide rails 3121. When the stopper on the moving seat 35B moves to the corresponding position of the photoelectric switch sensor, the photoelectric sensor provides the second motor 51B with the position information of the moving seat 35B, and adjusts the working condition of the second motor 51B according to the position information, such as speeding up or slowing down the rotation speed.

[0079] A working method of an automatic string welding device applied to photovoltaic cells comprises the following specific steps: S01 drives the material roll 61 to rotate obliquely through the driving device, so as to facilitate winding out the soldering tape in the material roll 61, and make the soldering tape pass through the guide wheel assembly 5 arranged on the lower left side of the material roll assembly. Since the material rolls in the two adjacent groups of discharge groups are on the same vertical line, and the vertical line forms an angle with the straight line where the guide wheel center corresponding to the material rolls in the two adjacent groups located on the same vertical line is located, in this embodiment, the first material roll assembly 6 of each of the three discharge groups is on the same vertical line, and the guide wheel assembly 5 corresponding to the first material roll assembly 6 of each of the three discharge groups is also on the same vertical line, and an angle is formed between the two straight lines, and then the winding direction of the soldering tape in each discharge group can be adjusted by the guide wheel assembly, so that the soldering tapes in adjacent discharge groups are wound out to the dipping soldering mechanism in different directions, and the soldering tapes are immersed by the dipping soldering mechanism, and the immersed soldering tapes are sheared by the shearing device and transported to the string welding conveying mechanism; S1 uses the material box conveying assembly to convey the material box e11 filled with battery cells to a preset position close to the first conveying mechanism e1 and then stops. At the same time, the third conveying assembly is driven to move horizontally through the third conveying module e45, and then the third conveying grabbing assembly is driven to move to the string welding conveying mechanism e43. Then, the third conveying assembly is driven to move in the vertical direction through the action of the third conveying grabbing assembly, and then the jig on the string welding conveying mechanism e43 is grabbed, and then the jig is transferred to the fourth conveying mechanism e42. S2 drives the first conveyor grabbing assembly to grab the battery cell in the material box e11 through the first conveyor module e28, and then drives the first conveyor grabbing assembly to move to the second conveyor belt e36 in the direction close to the second conveyor mechanism e5 through the first conveyor module e28, and then drives the second conveyor belt e36 to convey the battery cell e111 in the direction close to the handling device through the second conveyor drive motor e35; at the same time, the fourth conveyor mechanism drives the fixture to be conveyed in the direction close to the handling device, so that the battery cell e11 is conveyed to the handling device in opposite directions through the second conveyor belt e36 and the fixture e22 is conveyed to the handling device through the fourth conveyor mechanism e42; S3 drives the fixing frame 1 z8 to move above the second conveyor belt e36 through the robot arm, and drives the fixing frame 2 z9 to move above the fourth conveying mechanism e42. After the robot arm descends to a preset height, the suction piece 1 z11 and the suction piece 2 z12 simultaneously suck the battery cell e111 and the fixture e22. After suction, the robot arm drives the battery cell e111 and the fixture e22 to move above the string welding conveying mechanism e43. S4 first places the battery cell e111 on the string welding conveying mechanism e43 through the adsorption part z11, and then conveys the soldering tape that has passed the dip soldering mechanism to the battery cell e111. After the soldering tape reaches a preset length, the soldering tape is cut by the soldering tape shearing device, and then the jig e22 is placed on the battery cell e111 through the adsorption part z12, so that the jig e22 presses the soldering tape, and then the battery cell e111 and the soldering tape are string welded together by the welding equipment arranged on the string welding conveying mechanism e43 to form a battery cell string, and the battery cell string formed by welding is conveyed to the cutting device for cutting.

[0080] Step S1 also includes: After grabbing all the battery cells in the material box e11, the material box conveying assembly continues to convey the material box e11 to the transmission assembly, and then drives the material box e11 on the transmission assembly down to the same height as the material box recovery assembly through the material box lifting cylinder e17, and then the transmission assembly drives the material box e11 to be conveyed to the material box recovery assembly for recycling. During this process, the conveying direction of the material box e11 is opposite to the recovery direction of the material box e11, so that the material box can be recovered at the material box loading point, thereby improving the efficiency of reloading the battery cells into the material box.

[0081] The above method can convey the battery cells and the jig from both ends of the frame respectively, so that the conveying of the battery cells and the jig does not interfere with each other. In this way, during the conveying of the battery cells, the material box loaded with the battery cells can be quickly recovered, and the material box can be directly recovered to the material box loading place, thereby improving the efficiency of reloading the battery cells into the material box; and in the process of conveying the jig, the jig placed on the string welding conveying mechanism can be recycled and directly conveyed to the handling device, saving recycling time and cost; in this way, the battery cells on the second conveying mechanism and the jig on the fourth conveying mechanism can be simultaneously grasped by the handling device and transferred to the string welding conveying mechanism, thereby improving the synchronous conveying efficiency of the battery cells and the jig, so as to carry out the next string welding process.

[0082] In step S4 of this embodiment, the process of cutting the battery cell string by the cutting device is as follows: a front guide mechanism 2B, a middle guide mechanism 3B and a rear guide mechanism 4B are provided on the frame 1B, and a conveyor belt 6B is sleeved thereon. When the welding ribbon moves to the front guide mechanism 2B, the conveyor belt 6B can move the welding ribbon from the front guide mechanism 2B to the middle guide mechanism 3B and the rear guide mechanism 4B in sequence, and complete the cutting of the welding ribbon at the middle guide mechanism 3B; When the welding strip moves to the predetermined position and needs to be cut, the conveyor belt 6B stops rotating, and the driving cylinder 321B drives the cutter body 323B to move downward, thereby completing the cutting of the welding strip. The cut-off part is moved out of the frame 1B through the conveyor belt 6B on the rear guide mechanism 4B, and the next part of the welding strip to be cut passes through the conveyor belt 6B on the front guide mechanism 2B and the middle guide mechanism 3B area to the conveyor belt 6B area on the rear guide mechanism 4B, and then the cutting of the welding strip continues; There are receivers and transmitters on both sides of the movable frame 31B respectively. The transmitter and the receiver form a detection channel. A driving cylinder 321B and a cutter assembly are arranged above the detection channel. The cutter assembly is connected to the output shaft of the driving cylinder 321B. The transmitter emits a beam of light, and the light passes through to be received by the receiver. When the driving cylinder 321B drives the cutter assembly to move and blocks the light, the receiver receives a change in the light signal, thereby knowing whether the cutter assembly has reached the preset position, and then knowing the cutting situation of the welding strip.

Claims

1. An automatic string welding device for photovoltaic cells, characterized in that: The machine comprises a frame, a loading device, a handling device, a circulating conveying device, two or more welding strip feeding devices, a welding string conveying mechanism, and a cutting device. The loading device and the circulating conveying device are arranged at both ends of the frame, the welding strip feeding devices are arranged on both sides of the loading device, the handling device is arranged between the loading device and the circulating conveying device, the loading device is arranged on both sides of the circulating conveying device, the handling device is arranged between the loading device and the circulating conveying device, the loading device and the circulating conveying device respectively convey the battery sheet and the jig to the handling device in opposite directions, and the end of the handling device is provided with There are more than two adsorption members one and more than two adsorption members two, and a gap is set between the adsorption members one and two. The adsorption members one and two on the handling device synchronously grab the battery cell and the jig and transfer them to the string welding conveying mechanism. After the handling device places the battery cell on the string welding conveying mechanism, the welding tape feeding device conveys the welding tape to the battery cell of the string welding conveying mechanism. The handling device places the jig on the battery cell to press the welding tape. After the string welding conveying mechanism welds the battery cell, the cutting device cuts the battery cell string of a preset length and detects whether the cutting device cuts the battery cell string.

2. The automatic string welding equipment for photovoltaic cells according to claim 1 is characterized in that: The feeding device includes a first conveying mechanism and two or more material box conveying mechanisms, a material box recovery mechanism, a material box lifting mechanism, and a second conveying mechanism. The material box conveying mechanism is arranged above the material box recovery mechanism, and the material box lifting mechanism is arranged at one end of the material box conveying mechanism and the material box recovery mechanism. One end of the first conveying mechanism is located above the material box conveying mechanism, and the second conveying mechanism is symmetrically arranged below the first conveying mechanism with respect to the first conveying mechanism; The material box conveying mechanism includes a material box conveying base and a material box conveying assembly. The bottom of the material box conveying assembly is connected to the frame through the material box conveying base. The material box conveying assembly includes a material box conveying transmission shaft, a material box conveying drive motor and more than two material box conveying active wheels, a material box conveying driven wheel and a material box conveying transmission belt. The material box conveying active wheel and the material box conveying driven wheel are respectively arranged at both ends of the material box conveying base. The material box conveying active wheel and the material box conveying driven wheel are connected by the material box conveying transmission belt. The two ends of the material box conveying transmission shaft are respectively connected to the material box conveying active wheel, and the output end of the material box conveying drive motor arranged on one side of the material box conveying base is connected to the material box conveying transmission shaft; The material box lifting mechanism includes a material box lifting cylinder, a material box lifting fixed seat and a transmission assembly. The material box lifting cylinder is connected to the frame through the material box lifting fixed seat. The material box lifting fixed seat is provided with a material box lifting slide rail. The material box lifting slide rail is movably sleeved with a material box lifting slider. The transmission assembly includes a transmission shaft, a driving motor and more than two driving wheels, a driven wheel and a transmission belt. The driving wheel and the driven wheel are respectively arranged at both ends of the base, and the driving wheel and the driven wheel are connected through a transmission belt transmission. The two ends of the transmission shaft are respectively connected to the driving wheel, the output end of the driving motor arranged on one side of the base is connected to the transmission shaft, the material box lifting slider is connected to the base, and the output end of the material box lifting cylinder is connected to the extended end of the material box lifting slider; The material box recovery mechanism includes a material box recovery base and a material box recovery component. The bottom of the material box recovery component is connected to the frame through the material box recovery base. The material box recovery component includes a material box recovery transmission shaft, a material box recovery drive motor and two or more material box recovery active wheels, a material box recovery driven wheel and a material box recovery transmission belt. The material box recovery active wheel and the material box recovery driven wheel are respectively arranged at the two ends of the material box recovery base. The material box recovery active wheel and the material box recovery driven wheel are connected by the material box recovery transmission belt. The two ends of the material box recovery transmission shaft are respectively connected to the material box recovery active wheels. The output end of the material box recovery drive motor arranged on one side of the material box recovery base is connected to the material box recovery transmission shaft.

3. The automatic string welding equipment for photovoltaic cells according to claim 1 is characterized in that: The first conveying mechanism comprises a first conveying fixed seat, a first conveying driving motor, a first conveying module and more than two first conveying grabbing components, the first conveying fixed seat is connected to the frame, the first conveying module is arranged on the first conveying fixed seat, the output end of the first conveying driving motor is connected to the first conveying module, the first conveying module is provided with a first conveying slider slidably connected to the first conveying module, the first conveying grabbing components are symmetrically arranged on both sides of the first conveying module, the first conveying grabbing components comprise a first conveying driving cylinder, a first conveying connecting plate and a first conveying connecting frame, one end of the first conveying connecting plate is connected to the first conveying slider, the first conveying driving cylinder is arranged at the other end of the first conveying connecting plate, the output end of the first conveying driving cylinder is connected to the first conveying connecting frame, and the first conveying connecting frame is provided with more than two first conveying suction cups; The second conveying mechanism includes a second conveying fixed seat, a second conveying drive motor, a second conveying belt, a second conveying driving wheel, a second conveying driven wheel, a second conveying transmission belt and more than two second conveying shafts. The second conveying fixed seat is connected to the frame, the second conveying shaft is arranged at both ends of the second conveying fixed seat, the two ends of the second conveying shaft are rotatably connected to the second conveying fixed seat through second conveying bearings, the second conveying belt is sleeved on the second conveying shaft, one end of the second conveying shaft is connected to the second conveying driven wheel, the second conveying driving wheel is connected to the output end of the second conveying drive motor arranged on one side of the second conveying fixed seat, and the second conveying driving wheel is transmission-connected to the second conveying driven wheel through the second conveying transmission belt.

4. The automatic string welding equipment for photovoltaic cells according to claim 1 is characterized in that: The handling device also includes a mechanical arm and a fixed frame. The mechanical arm is installed on the support seat. A connecting rod is provided on the mechanical arm. The fixed frame includes a fixed frame 1 and a fixed frame 2. The fixed frame 1 is arranged below the fixed frame 2 and is connected with the fixed frame 2 to form a whole. The connecting rod passes through the fixed frame 2 and is fixedly connected with the fixed frame 1. The adsorption member 1 is connected to the bottom of the fixed frame 1. The adsorption member 2 is arranged at both ends of the fixed frame 2. There is a gap between the adsorption member 1 and the adsorption member 2.

5. The automatic string welding equipment for photovoltaic cells according to claim 1 is characterized in that: The circulating conveying device includes more than two third conveying mechanisms and fourth conveying mechanisms, the fourth conveying mechanism is arranged at the bottom of the third conveying mechanism, and the fourth conveying mechanism and the third conveying mechanism are symmetrically arranged with respect to the handling device; The third conveying mechanism includes a third conveying fixed seat, a third conveying module group 1, a third conveying drive motor 1, a third conveying assembly, a third conveying module group 2, a third conveying drive motor 2 and a third conveying grabbing assembly. The third conveying fixed seat is connected to the frame. The third conveying module group 1 is arranged on the third conveying fixed seat. The output end of the third conveying drive motor 1 is connected to the third conveying module 1. The third conveying module 1 is provided with a third conveying slider 1 which is slidably connected to the third conveying module 1. The third conveying slider 1 is connected to the third conveying assembly. The third conveying assembly includes a third conveying drive cylinder 3, a third conveying fixed seat 3, a third conveying connecting plate 3 and a third conveying slider 3. The output end of the third conveying drive cylinder 3 is connected to the third conveying connecting plate 3. The third conveying fixed seat 3 is connected to the third conveying slider 1. The third conveying drive cylinder 3 is arranged On the third conveying fixed seat three, the third conveying fixed seat three is provided with a third conveying slide rail three, the third conveying slider three is slidably connected to the third conveying slider three, the third conveying connecting plate three is connected to the third conveying slider three, the third conveying module two is connected to the third conveying connecting plate three through the third conveying connecting plate two, the output end of the third conveying driving motor two is connected to the third conveying module two, the third conveying module two is provided with a third conveying slider two slidably connected to the third conveying module two, the third conveying grabbing assembly is connected to the third conveying slider two, the third conveying grabbing assembly includes a third conveying connecting frame and more than two third conveying fixed frames, the upper end of the third conveying connecting frame is connected to the third conveying slider two, the lower end of the third conveying connecting frame is respectively connected to the third conveying fixed frame on both sides, and the third conveying fixed frame is provided with more than two third conveying suction cups.

6. The automatic string welding equipment for photovoltaic cells according to claim 1, characterized in that: The solder strip feeding device includes a discharging mechanism and a solder dipping mechanism, the discharging mechanism includes a hanging plate, a supporting wheel assembly, a tensioning wheel assembly and more than two discharging groups, the hanging plate is provided with a discharging area, the discharging groups of two adjacent groups are arranged in parallel in the discharging area, the discharging group includes more than two solder strip unwinding assemblies, the solder strip unwinding assembly includes a guide wheel assembly and a material roll assembly, the guide wheel assembly is arranged at the lower left side of the material roll assembly, the guide wheel assembly includes a guide wheel, the material roll assembly includes a material roll, in a vertical plane parallel to the hanging plate, a straight line passing through the centers of all guide wheels in the same discharging group is arranged in parallel with a straight line passing through the centers of all material rolls, a straight line passing through the centers of all guide wheels in the same discharging group is arranged downwardly inclined from a straight line in the horizontal direction of the hanging plate, the material rolls in the discharging groups of two adjacent groups are on the same vertical line, and the vertical line and a straight line passing through the centers of guide wheels corresponding to the material rolls in the two adjacent groups located on the same vertical line are arranged inwardly inclined.

7. The automatic string welding equipment for photovoltaic cells according to claim 6 is characterized in that: The soldering dip mechanism includes a bracket and a material barrel. The bracket is provided with a soaking tank, in which flux is placed. The material barrel is used to store the flux. The soaking tank is provided with a circulation component, which includes a circulation outlet and a circulation inlet. The circulation outlet is arranged on one side of the bottom of the soaking tank, and the circulation inlet is arranged on the outer side of the soaking tank wall. The circulation outlet is connected to the material barrel. A circulation device is arranged on one side of the bracket, and the circulation device includes a circulation pump. A circulation pump inlet and a circulation pump outlet are arranged on the circulation pump, the circulation pump inlet is connected to the material barrel, and the circulation pump outlet is connected to the circulation inlet.

8. The automatic string welding equipment for photovoltaic cells according to claim 1, characterized in that: The cutting device comprises a frame one, a front guide mechanism and a rear guide mechanism are respectively arranged on both sides of the frame one, a middle guide mechanism is arranged between the front guide mechanism and the rear guide mechanism, the middle guide mechanism comprises a moving seat, a moving assembly is arranged between the moving seat and the frame one, a conveyor belt is sleeved between the front guide mechanism, the middle guide mechanism and the rear guide mechanism, a moving frame is arranged on the moving seat, a cutting device and a detection device are arranged on the moving frame, the detection device comprises a receiver and a transmitter, the receiver and the transmitter are arranged on both sides of the moving frame relatively, a detection channel is formed between the transmitter and the receiver, and the cutting device is arranged on the detection channel along the extension direction of the detection channel.

9. A working method for an automatic string welding device applied to photovoltaic cells according to any one of claims 1 to 8, characterized in that: The following steps are involved: S01 drives the material coil to rotate obliquely through the driving device, so as to facilitate winding out the soldering tape in the material coil, and make the soldering tape pass through the guide wheel assembly arranged on the lower left side of the material coil assembly. Since the material coils in the two adjacent groups of material discharging groups are on the same vertical line, and the vertical line forms an angle with the straight line where the guide wheel centers corresponding to the material coils in the two adjacent groups located on the same vertical line are located, the winding direction of the soldering tape in each group of material discharging groups can be adjusted through the guide wheel assembly, so that the soldering tapes in the adjacent material discharging groups are wound out to the dip soldering mechanism in different directions; S1 conveys the box filled with battery cells to a preset position close to the first conveying mechanism through the box conveying assembly and stops. At the same time, the third conveying assembly is driven to move horizontally through the third conveying module 1, and then the third conveying grabbing assembly is driven to move to the string welding conveying mechanism. Then, the third conveying assembly is driven to move in the vertical direction to grab the fixture on the string welding conveying mechanism, and then the fixture is transferred to the fourth conveying mechanism. S2 drives the first conveyor grabbing assembly to grab the battery cells in the material box through the first conveyor module, and then drives the first conveyor grabbing assembly to move to the second conveyor belt in the direction close to the second conveyor mechanism through the first conveyor module, and then drives the second conveyor belt to convey the battery cells in the direction close to the handling device through the second conveyor drive motor; at the same time, drives the fixture to convey in the direction close to the handling device through the fourth conveyor mechanism, so that the battery cells are conveyed to the handling device in opposite directions through the second conveyor belt and the fixture through the fourth conveyor mechanism; S3 drives the fixing frame 1 to move above the second conveyor belt through the robot arm, and drives the fixing frame 2 to move above the fourth conveyor mechanism. After the robot arm is lowered to a suitable height, the two actions of the adsorption member 1 adsorbing the battery cell and the adsorption member 2 adsorbing the fixture are performed simultaneously. After adsorption, the battery cell and the fixture are moved to the top of the string welding conveyor mechanism by the robot arm. S4 first places the battery cell on the string welding conveying mechanism through the adsorption part 1, and then conveys the soldering tape that has passed the dip soldering mechanism to the battery cell. After the soldering tape reaches a preset length, the soldering tape is cut by the soldering tape shearing device, and then the jig is placed on the battery cell through the adsorption part 2, so that the jig presses the soldering tape, and then the battery cell and the soldering tape are string welded to form a battery cell string through the welding equipment arranged on the string welding conveying mechanism, and the battery cell string formed by welding is conveyed to the cutting device for cutting.

10. The working method of the automatic string welding equipment applied to photovoltaic cells according to claim 9 is characterized in that: The step S0 also includes soaking the solder strip by a solder dipping mechanism, and the soaked solder strip is sheared by a shearing device and then conveyed to the string soldering conveying mechanism; Step S1 also includes: After grabbing all the battery cells in the material box, the material box conveying assembly continues to convey the material box to the transmission assembly, and then the material box on the transmission assembly is driven down to the same height as the material box recovery assembly by the material box lifting cylinder, and then the transmission assembly drives the material box to be conveyed to the material box recovery assembly for recycling. During this process, the conveying direction of the material box is opposite to the recovery direction of the material box.

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