Confluence welding strip soldering flux coating device

Abstract

The invention discloses a confluence welding strip scaling powder coating device. The confluence welding strip scaling powder coating device comprises a base, a box body, a burr preventing mechanism and a spraying mechanism. The burr preventing mechanism comprises a backup plate, a recycling box and a supporting assembly. An assembling groove communicated with the interior of the box body is formed in the upper end of the box body, two backup plates which can abut against the two sides of a welding strip and are adjustable in interval are vertically arranged in the assembling groove in a penetrating mode at intervals, and a plurality of width-adjustable supporting assemblies which are used for supporting the welding strip and internally store cooling media are fixedly arranged in the box body at intervals. A recovery box is horizontally and fixedly arranged on each backup plate located above the box body and back to the welding strip, the box body is arranged in the base through a material flattening mechanism, the confluence welding strip scaling powder coating device can be suitable for coating operation of welding strips with different widths by adjusting the burr prevention mechanism, and in the coating process, the recovery box is fixed to the position, opposite to the welding strip, of the box body. The problems that the thickness of a scaling powder coating coated on the surface of the welding strip is not uniform and burrs are generated on the two sides of the welding strip can be solved, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic welding strip processing, and in particular to a flux coating device for a busbar welding strip. Background Art

[0002] Photovoltaic welding ribbon, also known as tinned copper ribbon or tin-coated copper ribbon, is a branch current ribbon and interconnection strip. It is used to connect the solar cells of photovoltaic modules and plays an important role in conductivity and collection of electricity. The welding ribbon is an important raw material in the welding process of photovoltaic modules. The quality of the welding ribbon will directly affect the current collection efficiency of the photovoltaic module and has a great impact on the power of the photovoltaic module.

[0003] The existing coating device generally coats the viscous or paste-like flux on the photovoltaic welding ribbon through a coating roller. When coating with a coating roller, the excess flux on the surface of the welding ribbon will be squeezed by the coating roller to flow to the edges on both sides, resulting in a phenomenon of thin in the middle and thick on both sides, or excess flux drips from both sides of the welding ribbon, resulting in a phenomenon of thin edges on both sides of the welding ribbon and thick in the middle, resulting in uneven coating on both sides of the photovoltaic welding ribbon. In addition, when excess flux flows out along both sides of the welding ribbon, a small amount of flux will stick to both sides of the welding ribbon, resulting in burrs on both sides of the welding ribbon, reducing the quality of the finished welding ribbon.

[0004] Therefore, it is an urgent problem to be solved by the present invention to provide a solder strip flux coating device which can be suitable for solder strips of different widths by adjusting the anti-burr mechanism during use, and which can avoid the problems of uneven thickness of the flux coating on the surface of the solder strip and burrs on both sides of the solder strip during the coating process, thereby improving the quality of the product. Summary of the invention

[0005] In view of the above technical problems, the purpose of the present invention is to overcome the problem that during coating in the prior art, excess flux on the surface of the solder strip will be squeezed by the coating roller to flow to the edges of both sides, resulting in a phenomenon that the middle is thin and the two sides are thick, or excess flux drips from both sides of the solder strip, resulting in a phenomenon that the edges of both sides of the solder strip are thin and the middle is thick, thereby causing uneven coating on the edges of both sides of the photovoltaic solder strip. In addition, when excess flux flows out along both sides of the solder strip, a small amount of flux will be adhered to both sides of the solder strip, resulting in burrs on both sides of the solder strip, thereby reducing the quality of the finished solder strip. Thus, a device for coating solder strips of different widths is provided, which can be applied by adjusting the anti-burr mechanism during use, and can avoid the problems of uneven thickness of the flux coating on the surface of the solder strip and burrs on both sides of the solder strip during the coating process, thereby improving the quality of the product.

[0006] In order to achieve the above-mentioned object, the present invention provides a solder flux coating device for a busbar, the device comprising: a base, a box, a burr prevention mechanism and a spraying mechanism;

[0007] The anti-burr mechanism comprises: a backing plate, a recovery box and a support assembly; wherein,

[0008] The upper end of the box body is provided with an assembly groove connected with the interior thereof, and two support plates which can be abutted against both sides of the welding strip and have an adjustable interval are arranged in the assembly groove and vertically penetrate therein, and rubber pads which fit the welding strip are fixedly arranged on the facing surfaces of the two support plates, and a plurality of support assemblies with adjustable widths which are used to support the welding strip and store cooling medium are fixedly arranged inside the box body located between the two support plates, so as to cool the flux coated on the welding strip, and a recovery box with an opening facing upward and flush with the top thereof is fixedly arranged horizontally on each of the support plates located above the box body and facing away from the welding strip, and a spray mechanism which can release flux thereto is arranged on the base located above the welding strip, and the box body is arranged inside the base through a material flattening mechanism, so as to cause the box body to vibrate in the horizontal direction, so as to evenly distribute the flux coated on the welding strip on its surface.

[0009] Preferably, two baffles capable of leaning against the welding strip are spaced and detachably fixed between the two support plates; wherein,

[0010] The bottom end portion of the baffle plate that can rest against the two support plates protrudes downward to form a protrusion that can rest against the welding strip located between the two support plates. Threaded columns are vertically and rotatably provided at both ends of the baffle plate, and fixing holes that are threadedly connected to the two threaded columns are vertically provided at the upper ends of the two support plates.

[0011] Preferably, at least two screw rods are horizontally and rotatably arranged inside the box, and each screw rod is formed by splicing two screw rods with opposite thread directions. The two support plates are respectively spaced and horizontally provided with threaded holes threadedly connected to the two screw rods. Each support plate is assembled on the screw rod through the threaded hole, and every two adjacent screw rods are connected together by a chain drive.

[0012] Preferably, the support assembly comprises: a support block, a second pump body and a connecting pipe; wherein,

[0013] The bottom of each of the support blocks, which is square and hollow inside, is partially recessed inward to form an N-shaped slot that matches the screw rod. A row of support blocks arranged side by side is mounted on each of the screw rods between the two support plates. The two sides of each support block are horizontally and fixedly provided with an inlet end and an outlet end connected to the interior thereof, and the inlet end and the outlet end of the fixing parts of the two connected support blocks in each row are connected together by a connecting pipe. The No. 2 pump body is horizontally fixed in the box body, and the output end part passes through the side wall of the box body and is connected to the cooling medium source, and its input end is connected to the outlet end of each row of the support blocks, and the ports of the inlet end or the outlet end on the remaining support blocks are inserted with sealing plugs to seal them.

[0014] Preferably, a plurality of fixing members are vertically fixed at the bottom end of each support block, and each of the fixing members comprises: a support rod and a suction cup; wherein,

[0015] Each of the support blocks located on both sides of the card slot is vertically fixed with a plurality of support rods, and the bottom end of each support rod is fixed with a suction cup capable of being adsorbed on the box body.

[0016] Preferably, the material flattening mechanism comprises: a tooth plate, an incomplete gear, an assembly rod and a spring; wherein,

[0017] The inner walls of the base located on both sides of the box body are horizontally penetrated by a row of assembly rods that can horizontally extend into the interior of the box body at equal intervals along the width direction of the base, and each of the assembly rods located between the box body and the base is sleeved with a spring, and the two ends of each spring are respectively fixed to the base and the box body, and a toothed plate is horizontally fixed at the bottom end of the box body, and an incomplete gear that can be intermittently meshed with the base is horizontally and rotatably arranged inside the base.

[0018] Preferably, a motor for driving the incomplete gear to rotate is horizontally fixedly disposed at the bottom end of the base, and the incomplete gear is coaxially fixed on the output shaft of the motor.

[0019] Preferably, the spraying mechanism comprises: a liquid storage tank, a first pump body and a nozzle; wherein,

[0020] The base located above the welding strip is horizontally fixed with a liquid storage tank which is open upward and stores flux inside through a bracket, and a nozzle connected to the interior of the liquid storage tank is fixed below the liquid storage tank. The No. 1 pump body is fixed at the bottom end of the liquid storage tank, and the input end of the No. 1 pump body extends into the liquid storage tank, and the output end thereof is connected to the interior of the nozzle.

[0021] Preferably, the inner walls on both sides of the assembly groove are respectively recessed inward at equal intervals to form a row of guide grooves, and each rubber pad is horizontally fixed with a row of guide rods matching the corresponding row of guide grooves at equal intervals along its width direction, and the free end of each guide rod partially extends into the corresponding guide groove and is fixedly provided with a guide slider slidably connected thereto.

[0022] Preferably, each of the recovery boxes and the bottom end of the box body are respectively and rotatably provided with a plurality of running wheels which can respectively abut against the box body and the base.

[0023] According to the above technical solution, the beneficial effects of the soldering flux coating device for busbars provided by the present invention when used are as follows:

[0024] (1) According to the width of the solder strip, first adjust the spacing between the two support plates so that the two support plates are against both sides of the solder strip to prevent the flux from contacting both sides of the solder strip during the coating process, and then adjust the width of each support component so that its width is the same as the width of the solder strip.

[0025] (2) After the adjustment is completed, when the soldering ribbon passes horizontally between the two supporting plates and is supported by the multiple supporting components, the soldering ribbon stops running and stays on the multiple supporting components, and is located on the soldering ribbon between the two supporting plates through the spraying mechanism. During the coating process, excess flux will overflow from the two supporting plates and flow into the two recycling boxes for recycling, thereby preventing excess flux from flowing into the surrounding environment. At the same time, the recycled flux can be used again, thereby avoiding waste of resources. During the coating process, the rubber pads on the two supporting plates are attached to both sides of the soldering ribbon, and the rubber pads on the two supporting plates play the role of isolation and sealing, thereby preventing excess flux from contacting the two side walls of the soldering ribbon during the coating process, thereby preventing the two side walls of the soldering ribbon from being adhered to by flux and generating burrs after solidification, thereby improving the quality of the finished soldering ribbon.

[0026] (3) During the coating process, the material flattening mechanism is used to make the box body, the anti-burr mechanism and the soldering strip arranged on the box body vibrate in the horizontal direction, so that the flux coated on the surface of the soldering strip can be evenly spread on the soldering strip, thereby avoiding uneven thickness of the coating layer formed by the flux coated on the surface of the soldering strip, thereby improving the coating effect.

[0027] (4) Since the cooling medium is stored inside the plurality of support components that are bonded to and used to support the solder strip, the cooling medium may be water or liquid nitrogen at 0-10°C. Since liquid nitrogen is an inert, colorless, odorless, low-viscosity, non-corrosive, non-flammable, extremely low-temperature transparent liquid, and the plurality of support components that store liquid nitrogen inside have a low temperature, the solder flux uniformly coated on the solder strip can be quickly cooled to quickly solidify into a solid coating layer adhered to its surface. This overcomes the problem in the prior art that the liquid solder flux on the surface of the solder strip flows to both sides during the movement of the coated solder strip, resulting in uneven coating thickness or burrs on both sides.

[0028] In summary, the present invention can be suitable for coating operations of solder strips of different widths by adjusting the anti-burr mechanism, and during the coating process, it can avoid the problems of uneven thickness of the flux coating coated on the surface of the solder strip and burrs on both sides of the solder strip, thereby improving the quality of the product.

[0029] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation mode; and the parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a structural schematic diagram of a soldering flux coating device for a busbar provided in a preferred embodiment of the present invention;

[0032] Figure 2 It is a schematic diagram of the internal structure of a soldering flux coating device for a busbar provided in a preferred embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of the assembly of the anti-burr mechanism and the box of the soldering flux coating device for a busbar provided in a preferred embodiment of the present invention;

[0034] Figure 4 yes Figure 3 Structural cross-sectional view of

[0035] Figure 5 It is a structural schematic diagram of a support assembly of a soldering flux coating device for a busbar provided in a preferred embodiment of the present invention;

[0036] Figure 6 It is a structural schematic diagram of a support block of a support assembly of a soldering ribbon flux coating device provided in a preferred embodiment of the present invention;

[0037] Figure 7 yes Figure 6 Structural cross-sectional view of

[0038] Figure 8 It is a schematic structural diagram of a baffle of a soldering ribbon flux coating device provided in a preferred embodiment of the present invention.

[0039] Description of Reference Numerals

[0040] 1. Base; 2. Box body; 3. Back plate; 4. Spraying mechanism; 401. Liquid storage tank; 402. Pump body No. 1; 403. Nozzle; 5. Recovery box; 6. Baffle; 7. Rubber pad; 8. Screw rod; 9. Material leveling mechanism; 901. Tooth plate; 902. Incomplete gear; 903. Assembly rod; 904. Spring; 10. Bracket; 11. Support assembly; 1101. Support block; 1102. Pump body No. 2; 1103. Connecting pipe; 12. Guide rod; 13. Chain; 14. Fixing piece; 15. Inlet end; 16. Outlet end; 17. Threaded column; 18. Fixing hole. DETAILED DESCRIPTION

[0041] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0042] like Figure 1-8 As shown, the present invention provides a solder flux coating device for a busbar, the device comprising: a base 1, a box 2, a burr prevention mechanism and a spraying mechanism 4;

[0043] The anti-burr mechanism comprises: a backing plate 3, a recovery box 5 and a support assembly 11; wherein,

[0044] The upper end of the box body 2 is provided with an assembly groove connected with the interior thereof, and two support plates 3 which can abut against the two sides of the welding strip and have an adjustable interval are arranged in the assembly groove and vertically penetrate therein, and rubber pads 7 which are fitted with the welding strip are fixedly arranged on the facing surfaces of the two support plates 3, and a plurality of support components 11 with adjustable widths which are used to support the welding strip and store cooling medium are fixedly arranged inside the box body 2 located between the two support plates 3, so as to cool the flux coated on the welding strip, and a recovery box 5 with an opening facing upward and flush with the top thereof is fixedly arranged horizontally on each of the support plates 3 located above the box body 2 and facing away from the welding strip, and a spray mechanism 4 which can release the flux thereto is arranged on the base 1 located above the welding strip, and the box body 2 is arranged inside the base 1 through a material flattening mechanism 9, so that the box body 2 vibrates in the horizontal direction, so as to evenly distribute the flux coated on the welding strip on its surface.

[0045] In the above scheme, according to the width of the solder strip, the spacing between the two support plates 3 is first adjusted so that the two support plates 3 are against both sides of the solder strip to avoid the contact of the flux with both sides of the solder strip during the coating process, and then the width of each support component 11 is adjusted so that its width is the same as the width of the solder strip.

[0046] After the adjustment is completed, when the soldering strip passes horizontally between the two supporting plates 3 and is supported by the multiple supporting components 11, the soldering strip stops running and stays on the multiple supporting components 11, and is located on the soldering strip between the two supporting plates 3 through the spraying mechanism 4. During the coating process, the excess flux will overflow from the two supporting plates 3 and flow into the two recycling boxes 5 for recycling, so as to prevent the excess flux from flowing into the surrounding environment, and at the same time, the recycled flux can be used continuously to avoid waste of resources. During the coating process, the rubber pads 7 on the two supporting plates 3 are attached to both sides of the soldering strip, and the rubber pads 7 on the two supporting plates 3 play the role of isolation and sealing, so as to prevent the excess flux from contacting the two side walls of the soldering strip during the coating process, thereby preventing the soldering flux from sticking to the two side walls of the soldering strip and generating burrs after solidification, thereby improving the quality of the finished soldering strip.

[0047] In addition, during the coating process, the material flattening mechanism 9 is used to make the box body 2 and the anti-burr mechanism and the soldering strip arranged on the box body 2 vibrate in the horizontal direction, so that the flux coated on the surface of the soldering strip can be evenly spread on the soldering strip, avoiding uneven thickness of the coating layer formed by the flux coated on the surface of the soldering strip, thereby improving the coating effect.

[0048] In addition, since the cooling medium is stored inside the plurality of support components 11 attached to and used to support the solder strip, the cooling medium may be water or liquid nitrogen at 0-10°C. Since liquid nitrogen is an inert, colorless, odorless, low-viscosity, non-corrosive, non-flammable, extremely low-temperature transparent liquid, and the plurality of support components 11 storing liquid nitrogen inside have a low temperature, the solder flux uniformly coated on the solder strip can be quickly cooled to quickly solidify into a solid coating layer adhered to its surface. This overcomes the problem in the prior art that the liquid solder flux on the surface of the solder strip flows to both sides during the movement of the coated solder strip, resulting in uneven coating thickness or burrs on both sides.

[0049] In summary, the present invention can be suitable for coating operations of solder strips of different widths by adjusting the anti-burr mechanism, and during the coating process, it can avoid the problems of uneven thickness of the flux coating coated on the surface of the solder strip and burrs on both sides of the solder strip, thereby improving the quality of the product.

[0050] In a preferred embodiment of the present invention, two baffles 6 capable of leaning against the welding strip are detachably fixedly arranged between the two backing plates 3; wherein,

[0051] The bottom end portion of the baffle plate 6 that can rest on the two support plates 3 protrudes downward to form a protrusion that can rest on the welding strip located between the two support plates 3, and threaded columns 17 are vertically and rotatably provided at both ends of the baffle plate 6, and fixing holes 18 that are threadedly connected to the two threaded columns 17 are vertically opened at the upper ends of the two support plates 3.

[0052] In the above scheme, before use, the two baffles 6 are respectively assembled on the two support plates 3 by threaded connection, and the protrusions of the two baffles 6 are placed against the surface of the welding strip to prevent the flux from overflowing along the length or moving direction of the welding strip during the coating process, thereby affecting the coating effect.

[0053] After the initial or first coating operation is completed, the portion of the soldering tape coated with flux is moved forward so that the uncoated portion of the soldering tape is moved between the two baffles 6, and the height of the two baffles 6 is adjusted by adjusting the depth of the threaded column 17 inserted into the fixing hole 18, so that the protrusion of one of the baffles 6 abuts against the edge of the coating layer coated and solidified on the soldering tape, while the other baffle 6 still abuts against the surface of the soldering tape, and the surface of the soldering tape located between the two baffles 6 is coated by the spraying mechanism 4, so that the flux coating layer just coated between the two baffles 6 is perfectly spliced ​​with the flux coating layer previously coated and solidified on the soldering tape, avoiding unevenness at the connection between the two.

[0054] In addition, the baffles 6 of different sizes can be replaced to match the welding strips of different sizes.

[0055] In a preferred embodiment of the present invention, at least two screw rods 8 are horizontally and rotatably arranged inside the box body 2, and each screw rod 8 is spliced ​​by two screw rods with opposite thread directions. The two support plates 3 are respectively spaced and horizontally provided with threaded holes threadedly connected to the two screw rods 8. Each of the support plates 3 is assembled on the screw rod 8 through the threaded holes, and every two adjacent screw rods 8 are connected together by a chain 13.

[0056] In the above scheme, by rotating any one of the screw rods 8, all of the screw rods 8 can be driven to rotate at the same time through the transmission action of multiple chains 13, thereby driving the two support plates 3 to move smoothly and reliably closer to or farther away from each other in the horizontal direction to adjust the distance between the two to adapt to welding strips of different widths.

[0057] In a preferred embodiment of the present invention, the support assembly 11 comprises: a support block 1101, a second pump body 1102 and a connecting pipe 1103; wherein,

[0058] The bottom of each of the support blocks 1101, which is square and hollow inside, is partially recessed inward to form an n-shaped slot that matches the screw rod 8. A row of support blocks 1101 arranged side by side is mounted on each of the screw rods 8 between the two support plates 3. An inlet end 15 and an outlet end 16 connected to the interior of each support block 1101 are horizontally and fixedly arranged on both sides of each support block 1101 at intervals. The inlet end 15 and the outlet end 16 of the fixing parts of the two connected support blocks 1101 in each row are connected together by a connecting pipe 1103. The second pump body 1102 is horizontally fixed in the box body 2, and the output end part passes through the side wall of the box body 2 and is connected to the cooling medium source. Its input end is connected to the outlet end 16 of each row of the support blocks 1101, and the ports of the inlet end 15 or the outlet end 16 on the remaining support blocks 1101 are inserted with sealing plugs to seal them.

[0059] In the above scheme, if Figure 5-7 As shown, the inlet ends 15 and the outlet ends 16 on the two rows of support blocks 1101 are connected together in sequence through the connecting pipe 1103, so that the interior of each row of support blocks 1101 is connected. In addition, the extra inlet ends 15 on each row of support blocks 1101 and the outlet ends 16 of the other row of support blocks 1101 connected thereto are connected together through the connecting pipe 1103, so that the interiors of all the support blocks 1101 are connected, and all the remaining inlet ends 15 and the outlet ends 16 are plugged by inserting sealing plugs into their respective ports to prevent leakage during the process of injecting cooling medium into each support block 1101. Therefore, the cooling medium can be injected into all the support blocks 1101 through the second pump body 1102 to cool the solder strips at their upper ends and the flux coating layer on the solder strips.

[0060] After a period of use, the cooling medium in all the support blocks 1101 can be discharged and new cooling medium can be re-injected therein, or the cooling medium can be injected into all the support blocks 1101 after the flux coating layer on the solder strip is evenly coated by the material flattening mechanism 9, and after solidification, the cooling medium in each support block 1101 is released.

[0061] In addition, after the interiors of the multiple rows of support blocks 1101 are connected in the above-mentioned connection manner, Figure 5As shown, the inlet end 15 of any support block 1101 located in the front row is connected to the output end of the No. 2 pump body 1102, and the input end of the No. 2 pump body 1102 is connected to a storage device storing a cooling medium, and the outlet end 16 of any support block 1101 in the last row is connected to an external recovery device through a pipeline to start the No. 2 pump body 1102 to continuously transport the cooling medium to multiple rows of support blocks 1101 in turn to ensure the refrigeration effect of all the support blocks 1101.

[0062] In a preferred embodiment of the present invention, a plurality of fixing members 14 are vertically fixedly disposed at the bottom end of each supporting block 1101, and each fixing member 14 comprises: a supporting rod and a suction cup; wherein,

[0063] Each of the support blocks 1101 located on both sides of the card slot is vertically fixed with a plurality of support rods, and a suction cup capable of being adsorbed on the box body 2 is fixedly provided at the bottom end of each support rod.

[0064] In the above scheme, if Figure 6 and 7 As shown, the top of the slot of each support block 1101 is a semicircular structure that is compatible with the screw rod 8, so that the top of the slot of each support block 1101 is stuck on the screw rod 8, and by driving the two support plates 3 to approach the two ends of each row of support blocks 1101 until they rest on the two ends, multiple rows of support blocks 1101 are clamped to prevent shaking, thereby improving the stability and reliability of the assembly of each support component 11.

[0065] In addition, the multiple support rods on the bottom of each support block 1101 serve to support it, and the suction cup on the bottom end of each support rod can be adsorbed on the box body 2, thereby further stabilizing each support block 1101 and preventing it from tipping over.

[0066] In addition, the width of the support assembly 11 can be adjusted by changing the number of the support blocks 1101 in each row, so that it can be suitable for welding strips of different sizes.

[0067] In a preferred embodiment of the present invention, the material flattening mechanism 9 comprises: a tooth plate 901, an incomplete gear 902, an assembly rod 903 and a spring 904; wherein,

[0068] The inner walls of the base 1 located on both sides of the box body 2 are horizontally penetrated by a row of assembly rods 903 that can horizontally extend into the interior of the box body 2 at equal intervals along the width direction thereof, and each of the assembly rods 903 located between the box body 2 and the base 1 is sleeved with a spring 904, and the two ends of each of the springs 904 are respectively fixed to the base 1 and the box body 2, a toothed plate 901 is horizontally fixedly provided at the bottom end of the box body 2, and an incomplete gear 902 that can be intermittently meshed with the base 1 is horizontally and rotatably provided inside the base 1.

[0069] In the above scheme, the two side walls of the box body 2 are respectively provided with avoidance holes for all the assembly rods 903 to pass through, and the assembly rods 903 and the corresponding avoidance holes are used in coordination so that the box body 2 can reciprocate in a straight line in the horizontal direction.

[0070] When in use, the box body 1 is driven to move back and forth in the horizontal direction by driving the incomplete gear 902 to intermittently mesh with the tooth plate 901 on the bottom end of the box body 1, so as to spread the flux on the welding strip.

[0071] Specifically, for example, when the incomplete gear 902 continuously rotates in the clockwise direction, when the incomplete gear 902 is engaged with the tooth plate 901, the box body 2 is driven to move toward the right side of the base 1. At the same time, the box body 2 compresses each of the springs 904 on the right side to make it in a compressed state, and each of the springs 904 on the left side is in a stretched state. When the incomplete gear 902 loses the engagement relationship with the tooth plate 901, the box body 2 moves in the opposite direction under the action of all the springs 904 and returns to its original position.

[0072] Therefore, the material flattening mechanism 9 can make the flux on the surface of the soldering strip between the two support plates 3 and the two baffles 6 evenly cover the surface, thus avoiding the problem of uneven thickness of the flux coating layer.

[0073] In a preferred embodiment of the present invention, a motor for driving the incomplete gear 902 to rotate is horizontally fixedly disposed at the bottom end of the base 1, and the incomplete gear 902 is coaxially fixed on the output shaft of the motor.

[0074] In the above solution, the incomplete gear 902 is driven to rotate by a motor to provide power therefor.

[0075] In a preferred embodiment of the present invention, the spraying mechanism 4 comprises: a liquid storage tank 401, a first pump body 402 and a nozzle 403; wherein,

[0076] The base 1 located above the soldering strip is horizontally fixed with a liquid storage tank 401 which is open upward and stores flux inside through a bracket 10, and a nozzle 403 connected to the interior of the liquid storage tank 401 is fixedly provided below the liquid storage tank 401, and the No. 1 pump body 402 is fixed to the bottom end of the liquid storage tank 401, and the input end portion of the No. 1 pump body 402 extends into the liquid storage tank 401, and the output end thereof is connected to the interior of the nozzle 403.

[0077] In the above scheme, the first pump body 402 is started to transport the soldering flux in the liquid storage tank 401 to the nozzle 403 and finally the soldering flux is released from the nozzle 403 to the surface of the solder strip just below it.

[0078] In addition, the power of the first pump body 402 is adjustable so that the impact of the flux sprayed from the nozzle 403 is very small, thereby avoiding impacting the solder strip and causing deformation thereof.

[0079] In a preferred embodiment of the present invention, the inner walls on both sides of the assembly groove are respectively recessed inward at equal intervals to form a row of guide grooves, and each of the rubber pads 7 is horizontally fixed with a row of guide rods 12 that are adapted to the corresponding row of guide grooves at equal intervals along its width direction, and the free end of each of the guide rods 12 partially extends into the corresponding guide groove and is fixed with a guide slider that is slidably connected to it.

[0080] In the above scheme, by using the guide slider of the guide rod 12 and the guide groove in cooperation, the two support plates 3 can be driven to move toward or away from each other smoothly and reliably in the horizontal direction during the rotation of all the screw rods 8 to adjust the distance between them.

[0081] In a preferred embodiment of the present invention, each of the recovery boxes 5 and the bottom end of the box body 2 are respectively and rotatably provided with a plurality of running wheels that can respectively abut against the box body 2 and the base 1 .

[0082] In the above scheme, the recovery box 5 and the box body 2 are supported to reduce the friction between them during their horizontal movement, thereby extending their service life.

[0083] In summary, the flux coating device for busbar solder strips provided by the present invention overcomes the problem in the prior art that, during coating, excess flux on the surface of the solder strip will be squeezed by the coating roller and flow toward the edges on both sides of the solder strip, resulting in a phenomenon in which the middle is thin and the two sides are thick, or excess flux drips from both sides of the solder strip, resulting in a phenomenon in which the edges on both sides of the solder strip are thin and the middle is thick, thereby causing uneven coating on the edges on both sides of the photovoltaic solder strip. In addition, when excess flux flows out along both sides of the solder strip, a small amount of flux will stick to both sides of the solder strip, resulting in burrs on both sides of the solder strip, thereby reducing the quality of the finished solder strip.

[0084] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0085] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0086] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A soldering flux coating device for a busbar, characterized in that: The device comprises: a base (1), a box (2), a burr prevention mechanism and a material spraying mechanism (4); The anti-burr mechanism comprises: a backing plate (3), a recovery box (5) and a support assembly (11); wherein: The upper end of the box body (2) is provided with an assembly groove connected to the interior thereof, and two support plates (3) are arranged in the assembly groove at intervals and vertically penetrated therein, and can be pressed against the two sides of the welding strip and have an adjustable interval. The facing surfaces of the two support plates (3) are respectively fixedly provided with rubber pads (7) that fit the welding strip. The box body (2) located between the two support plates (3) is provided with a plurality of support components (11) with adjustable widths for supporting the welding strip and storing a cooling medium therein, so as to adjust the pressure on the welding strip. The soldering flux is cooled, and a recovery box (5) with an opening facing upward and flush with the top thereof is fixedly arranged horizontally on each of the support plates (3) located above the box body (2) and facing away from the soldering strip. A spraying mechanism (4) capable of releasing soldering flux thereto is arranged on the base (1) located above the soldering strip. The box body (2) is arranged inside the base (1) through a material flattening mechanism (9) so that the box body (2) vibrates in the horizontal direction to evenly distribute the soldering flux coated on the soldering strip on its surface.

2. The soldering flux coating device for a busbar according to claim 1, characterized in that: Two baffles (6) capable of resting against the welding strip are arranged between the two support plates (3) in a detachable and fixed manner; wherein: The bottom end portion of the baffle plate (6) capable of abutting against the two support plates (3) protrudes downward to form a protruding portion that can abut against the welding strip located between the two support plates (3), and threaded columns (17) are respectively vertically and rotatably provided at both ends of the baffle plate (6), and fixing holes (18) threadedly connected to the two threaded columns (17) are respectively vertically provided at the upper ends of the two support plates (3).

3. The soldering flux coating device for a busbar according to claim 1, characterized in that: At least two screw rods (8) are horizontally and rotatably arranged inside the box body (2), and each screw rod (8) is formed by splicing two screw rods with opposite thread directions. The two supporting plates (3) are respectively spaced and horizontally provided with threaded holes threadedly connected to the two screw rods (8). Each supporting plate (3) is assembled on the screw rod (8) through the threaded hole, and each adjacent two screw rods (8) are connected together by a chain (13).

4. The soldering flux coating device for a busbar according to claim 3, characterized in that: The support assembly (11) comprises: a support block (1101), a second pump body (1102) and a connecting pipe (1103); wherein: The bottom of each of the support blocks (1101) is partially concave inwards to form an n-shaped slot adapted to the screw rod (8), and each of the screw rods (8) between the two support plates (3) is clamped with a row of support blocks (1101) arranged side by side, and both sides of each support block (1101) are horizontally and fixedly provided with an inlet end (15) and an outlet end (16) connected to the inside thereof, and the fixed ends of the two support blocks (1101) connected in each row are connected to each other. The inlet end (15) and the outlet end (16) of the fixed piece are connected together through a connecting pipe (1103); the second pump body (1102) is horizontally fixed in the box body (2); and the output end portion passes through the side wall of the box body (2) and is connected to a cooling medium source; its input end is connected to the outlet end (16) of each row of the support blocks (1101); and the ports of the inlet end (15) or the outlet end (16) on the remaining support blocks (1101) are inserted with sealing plugs to seal them.

5. The soldering flux coating device for a busbar according to claim 4, characterized in that: A plurality of fixing members (14) are vertically fixed at the bottom end of each supporting block (1101), and each fixing member (14) comprises: a supporting rod and a suction cup; wherein: Each of the support blocks (1101) located on both sides of the card slot is vertically fixed with a plurality of support rods, and a suction cup capable of being adsorbed on the box body (2) is fixedly provided at the bottom end of each support rod.

6. The soldering flux coating device for a busbar according to claim 1, characterized in that: The material flattening mechanism (9) comprises: a tooth plate (901), an incomplete gear (902), an assembly rod (903) and a spring (904); wherein: The inner walls of the base (1) located on both sides of the box body (2) are horizontally penetrated with equal intervals along the width direction thereof, and a row of assembly rods (903) capable of horizontally extending into the interior of the box body (2) are arranged; each assembly rod (903) located between the box body (2) and the base (1) is sleeved with a spring (904); the two ends of each spring (904) are respectively fixed to the base (1) and the box body (2); a toothed plate (901) is horizontally fixedly arranged at the bottom end of the box body (2); and an incomplete gear (902) capable of intermittent meshing connection therewith is horizontally and rotatably arranged inside the base (1).

7. The soldering flux coating device for a busbar according to claim 6, characterized in that: A motor for driving the incomplete gear (902) to rotate is horizontally fixedly disposed at the bottom end of the base (1), and the incomplete gear (902) is coaxially fixed on the output shaft of the motor.

8. The soldering flux coating device for a busbar according to claim 1, characterized in that: The spraying mechanism (4) comprises: a liquid storage tank (401), a first pump body (402) and a nozzle (403); wherein: The base (1) located above the soldering strip is horizontally fixed with a liquid storage tank (401) opened upward and storing solder flux inside through a bracket (10), a nozzle (403) connected to the inside of the liquid storage tank (401) is fixedly arranged below the liquid storage tank (401), the first pump body (402) is fixed to the bottom end of the liquid storage tank (401), and the input end portion of the first pump body (402) extends into the liquid storage tank (401), and the output end thereof is connected to the inside of the nozzle (403).

9. The soldering flux coating device for a busbar according to claim 3, characterized in that: The inner walls on both sides of the assembly groove are respectively recessed inward at equal intervals to form a row of guide grooves, and each rubber pad (7) is horizontally and evenly fixedly provided with a row of guide rods (12) adapted to the corresponding row of guide grooves along its width direction, and the free end of each guide rod (12) partially extends into the corresponding guide groove and is fixedly provided with a guide slider slidably connected thereto.

10. The soldering flux coating device for a busbar according to claim 1, characterized in that: The bottom ends of each recovery box (5) and the box body (2) are respectively provided with a plurality of travel wheels which are spaced apart and rotatably capable of resting against the box body (2) and the base (1) respectively.

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