CN210104007U - Weld and take annealing device - Google Patents
Weld and take annealing device Download PDFInfo
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- CN210104007U CN210104007U CN201920223337.7U CN201920223337U CN210104007U CN 210104007 U CN210104007 U CN 210104007U CN 201920223337 U CN201920223337 U CN 201920223337U CN 210104007 U CN210104007 U CN 210104007U
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Abstract
The utility model discloses a weld and take annealing device, including the box, be provided with annealing wheel, glass pipe, salt solution pond in the box, pass the line wheel passively, during the lower extreme of glass pipe stretched into the salt solution pond, passed the line wheel passively and set up in the salt solution pond. The annealing device reduces cycloid mechanisms in the conventional annealing device, simultaneously replaces a cooling water tank in the conventional annealing device with a salt solution pool, replaces a lower annealing wheel with a driven wire passing wheel, takes the salt solution in the salt solution pool as a negative electrode, enables a wire rod to be effectively immersed in the salt solution and to be in good contact with the negative electrode, and effectively solves the problems of unstable contact, easy slipping and easy ignition of a welding strip; meanwhile, the stress of the cycloid mechanism on the welding strip wire is reduced, the upper annealing wheel is used as an anode, and the salt solution is used as a cathode, so that higher voltage can be applied to two ends of the electrode, annealing is more sufficient, and the yield strength of the wire is effectively reduced.
Description
Technical Field
The utility model relates to an annealing technical field especially relates to a weld and take annealing device, mainly is applicable to triangle, circular, knurling, reflection of light form etc. and welds the area.
Background
The photovoltaic solder strip is mainly an important welding material in the production process of the solar cell and plays a role in connection and conduction. The quality of the welding strip is good, the power of the photovoltaic module is directly influenced, and the main process comprises the steps of wire drawing, calendering, wire rod processing, tin coating on the surface and the like. In the process of cold rolling and other processing technologies, the wire generates stress, the strength of the wire is increased by cold work hardening, and the wire is directly fed into a tin furnace for surface tin coating treatment, so that the deformation or distortion of the wire can be caused, and the stress of the wire is eliminated by adopting an annealing mode generally, and the strength of the wire is reduced.
When the solar photovoltaic welding strip is produced at present, the main annealing mode is resistance annealing adopting an upper annealing wheel type and a lower annealing wheel type, and the whole process is as follows: after being rolled out from the rolling mechanism, the wire passes through the upper annealing wheel and is used as the anode of the annealing end, the lower annealing wheel is placed in the water tank and is used as the cathode, and a swing rod is added between the upper annealing wheel and the lower annealing wheel to adjust the speed of the lower annealing wheel. And (4) directly cooling after annealing, and adding a swing rod between the lower annealing wheel and the tin furnace driving wheel to adjust the speed of the tin furnace driving wheel.
However, if the annealing mode is adopted for the triangular, round, embossed, reflective and other welding strips, the number of the swing rods and the driving wheels through which the wire passes is large, the welding strips are unstable in contact with the surface of the lower annealing wheel, and phenomena such as slipping and sparking are easy to occur. In addition, obvious tension is formed on the soft wire in the annealing area in the high-speed production process, so that the wire is stretched and deformed due to stress, the resistance is increased, and the wire is easy to burn off due to overheating; on the other hand, higher voltage cannot be applied to the two ends of the electrode, annealing is insufficient, and the yield strength of the wire cannot be well reduced.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model aims to provide a welding strip annealing device, which is suitable for annealing of welding strips such as triangle, round, embossing and reflective shapes, reduces a cycloid mechanism, and can solve the problems of unstable contact, easy slipping and easy ignition of the welding strip; meanwhile, the stress of the welding strip wire can be reduced, and the yield strength of the wire is reduced.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize.
A solder strip annealing apparatus comprising: the box, be provided with upper annealing wheel, glass pipe, salt solution pond in the box, passive line wheel of crossing, the lower extreme of glass pipe stretches into in the salt solution pond, passive line wheel of crossing set up in the salt solution pond.
The utility model discloses technical scheme's characteristics lie in with further improvement:
preferably, a third wheel is arranged between the upper annealing wheel and the upper end of the glass tube.
Preferably, the salt solution pool is filled with saturated salt solution.
Preferably, the driven wire passing wheel is lower than the lower end of the glass tube.
Preferably, the upper end of the glass tube is provided with an end cover, and the end cover is respectively provided with an air inlet and a wire inlet.
Preferably, the passing wheels and the driven wire passing wheels are arranged in bilateral symmetry relative to the vertical center line of the glass tube.
Preferably, the right vertical tangent of the passing wheel and the left vertical tangent of the driven passing wheel are respectively superposed with the vertical central line of the glass tube.
The invention also provides a welding strip annealing method, based on the welding strip annealing device, a salt solution is filled in the salt solution pool, the upper annealing wheel is used as an anode, the salt solution is used as a cathode, a welding strip wire enters the glass tube through the upper annealing wheel and then is immersed in the salt solution through the glass tube; and electrifying and pressurizing the anode of the upper annealing wheel and the cathode of the saline solution at two ends of the welding strip wire, heating the welding strip wire and finishing annealing.
Preferably, the salt solution is a saturated salt solution.
Further preferably, the saturated salt solution is a saturated saline solution.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a weld and take annealing device has reduced the cycloid mechanism among the conventional annealing device, replaces the coolant tank among the conventional annealing device for the salt solution pond simultaneously, replaces lower annealing wheel for the line wheel of crossing passively, regards the salt solution in the salt solution pond as the negative pole, makes the wire rod effectively soak in this salt solution, produces good contact with the negative pole, has effectively solved and has welded the problem that the area appears the contact unstability, easily skids, easily strikes sparks; meanwhile, the stress of the cycloid mechanism on the welding strip wire is reduced, the upper annealing wheel is used as an anode, and the salt solution is used as a cathode, so that higher voltage can be applied to two ends of the electrode, annealing is more sufficient, and the yield strength of the wire is effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a solder strip annealing apparatus of the present invention;
FIG. 2 is a schematic structural view of a conventional annealing apparatus;
fig. 3 is a schematic structural diagram of the solution annealing all-in-one machine for annealing by using the welding strip annealing device of the utility model.
In the above fig. 1-3: 1, a box body; 2, an annealing wheel is arranged; 3, a glass tube; 4, a salt solution pond; 5, a driven wire passing wheel; 6, passing; 7, a pay-off mechanism; 8, a rolling mechanism; 9 a tin plating mechanism; 10, a winding mechanism; 11 a cycloid mechanism; 111 swing link; 112 driving wheel; 12 lower annealing wheels; 13 cooling the water tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 2, fig. 2 is a conventional solder strip annealing device, the annealing device includes an upper annealing wheel 2 and a lower annealing wheel 12 disposed in a cooling water tank 13, the upper annealing wheel 2 and the lower annealing wheel 12 are respectively used as an anode and a cathode in an annealing process, a cycloid mechanism 11 is disposed between the upper annealing wheel 2 and the lower annealing wheel 12, a swing rod 111 and a driving wheel 112 in the cycloid mechanism 11 are more, and the swing rod 111 can adjust the speed of the lower annealing wheel 12. When the welding strip wire rod of triangle, round, embossing, reflection and the like adopts the conventional welding strip annealing device, because the number of the swing rod 111 and the driving wheel 112 through which the welding strip wire rod passes is too much, the welding strip wire rod is easy to contact with the surface of the lower annealing wheel 12 unstably, and the phenomena of slipping, ignition and the like are easy to occur. In addition, obvious tension is formed on the soft wire in the annealing area in the high-speed production process, so that the wire is stretched and deformed due to stress, the resistance is increased, and the wire is easy to burn off due to overheating; on the other hand, higher voltage cannot be applied to the two ends of the positive electrode and the negative electrode, and annealing is insufficient, so that the yield strength of the wire cannot be well reduced.
To the above problem, referring to fig. 1, an embodiment of the present invention provides a solder strip annealing device, including: the box 1 is provided with in the box 1 and goes up annealing wheel 2, glass pipe 3, salt solution pond 4, passively cross line wheel 5, and the lower extreme of glass pipe 3 stretches into in salt solution pond 4, passively crosses line wheel 5 and sets up in salt solution pond 4.
Compared with the conventional annealing device, the embodiment of the utility model reduces the cycloid mechanism 11 in the conventional annealing device (figure 2), and simultaneously replaces the cooling water tank 13 in the conventional annealing device with the salt solution pool 4 and replaces the lower annealing wheel 12 with the driven wire passing wheel 5, thereby solving the problems of unstable contact, easy slipping and easy sparking of the welding strip; meanwhile, the stress of the cycloid mechanism 11 on the welding strip wire is reduced, and the yield strength of the wire is effectively reduced.
In the above embodiment, the intermediate wheel 6 is arranged between the upper annealing wheel 2 and the upper end of the glass tube 3, and the intermediate wheel 6 is only used for changing the path of the welding strip wire so as to enable the welding strip wire to smoothly enter the glass tube 3.
In the above embodiment, the driven wire wheel 5 is lower than the lower end of the glass tube 3, so that the solder strip wire can smoothly pass through the driven wire wheel 5 and be led out of the annealing device after passing through the glass tube 3, and the next process is performed.
In the above embodiment, the upper end of the glass tube 3 is provided with an end cover, and the end cover is respectively provided with an air inlet and a wire inlet; and introducing nitrogen into the glass tube 3 through the air inlet to ensure that the glass tube 3 is filled with the nitrogen so as to prevent the solder strip wire heated by annealing from being oxidized.
In the above embodiment, the passing wheel 6 and the driven wire passing wheel 5 are arranged in bilateral symmetry with respect to the vertical center line of the glass tube 3. And further, the right vertical tangent of the passing wheel 6 and the left vertical tangent of the driven passing wheel 5 are respectively superposed with the vertical central line of the glass tube 3. Therefore, the welding strip wire can vertically run in the glass tube 3, and the phenomena that the welding strip wire is easy to break due to overheating caused by uneven stress and the like are prevented.
The embodiment of the utility model provides a still provide a weld and take annealing method, take annealing device based on above-mentioned welding. In the above-mentioned weld zone annealing device, the salt solution is filled in the salt solution tank 4, wherein the salt solution is a saturated salt solution, and in this embodiment, a saturated salt solution is used. An upper annealing wheel 2 is used as a positive electrode, a saturated salt solution is used as a negative electrode, and a welding strip wire enters a glass tube 3 through the upper annealing wheel 2 and then is immersed in the saturated salt solution through the glass tube 3; and electrifying and pressurizing the positive electrode of the upper annealing wheel 2 and the negative electrode of the saturated salt solution at two ends of the welding strip wire rod, and heating the welding strip wire rod to finish the annealing process.
By adopting the method, the wire can be effectively immersed into the salt solution to be in good contact with the negative electrode, and the problems of slipping and sparking caused by unstable contact between the welding strip wire and the negative electrode are effectively solved. And because the saturated salt solution is used as the negative electrode, higher voltage can be applied to the two ends of the electrode, the heating of the wire rod is improved, and the annealing time is prolonged, so that the annealing is more sufficient, and the yield strength of the wire rod is effectively reduced. Through experimental verification, the utility model discloses a method can make the voltage at positive negative pole both ends improve about 5%.
Specifically, referring to fig. 3, the circular solder strip is processed specifically according to the following method:
the first step is as follows: unwinding by using a pay-off mechanism 7, and welding round copper wires with the wire diameter of 0.1-0.5 mm;
the second step is that: after the wire rod comes out of the pay-off mechanism 7, the wire rod passes through the rolling mechanism 8, then three coils of wire are wound on a driving wheel, namely the upper annealing wheel 2, in the annealing device, and the wire rod is compressed by a cylinder to prevent slipping;
the third step: the wire rod does not pass through the cycloid mechanism 11 in the original annealing device any more, but directly enters the glass tube 3, and the glass tube 3 is filled with nitrogen to prevent the wire rod heated by annealing from being oxidized;
the fourth step: the wire is immersed into a saturated salt solution cathode, the anode of the upper annealing wheel 2 and the saturated salt solution cathode are electrified and pressurized at two ends of the wire, and the wire is heated to finish annealing;
the fifth step: the annealed wire passes through a driven wire passing wheel 5 in a saline solution pool 4, passes through a cleaning and air drying mechanism, is cleaned on the surface of the wire, is dried by an air knife, and is controlled by an oscillating bar 111 at an annealing linear speed;
and a sixth step: the wire rod enters a soldering flux groove of a tinning mechanism 9 and then enters a compression roller of a tin furnace, the compression roller is cooled into the tin furnace when the tin furnace is started, the temperature of the tin furnace is 220 ℃, and tinning is finished;
the seventh step: after passing through the wire storage rack, the wire is wound by the winding mechanism 10 through the main linear speed driving wheel.
Through practical detection, the finished product accomplishes the annealing smoothly, and finished product's yield strength can be stabilized at about 65MPa, adopts conventional annealing device to carry out the annealing operation, and finished product's yield strength is at 78-80MPa, therefore, adopts the utility model discloses a method can obviously further reduce the yield strength of product.
The annealing device and the annealing method provided by the invention can be adopted for welding strips with triangular shapes, embossing shapes, reflective shapes and the like, so that the problems of unstable contact, easy slipping and easy sparking of the welding strips are solved, and the aim of reducing the yield strength of the wire rod is fulfilled.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A solder strip annealing apparatus, comprising: the box, be provided with upper annealing wheel, glass pipe, salt solution pond in the box, passive line wheel of crossing, the lower extreme of glass pipe stretches into in the salt solution pond, passive line wheel of crossing set up in the salt solution pond.
2. The solder strip annealing apparatus according to claim 1, wherein a transition wheel is provided between the upper annealing wheel and the upper end of the glass tube.
3. The weld strip annealing apparatus according to claim 1, wherein the salt solution tank contains a saturated salt solution.
4. The solder strip annealing apparatus according to claim 1, wherein the passive wire passing wheel is lower than the lower end of the glass tube.
5. The solder strip annealing apparatus according to claim 1, wherein an end cap is provided at an upper end of the glass tube, and an air inlet and a wire inlet are provided at the end cap, respectively.
6. The solder strip annealing apparatus according to claim 2, wherein the over wheels and the driven wire passing wheels are disposed in bilateral symmetry with respect to a vertical centerline of the glass tube.
7. The solder strip annealing device according to claim 6, wherein the right vertical tangent of the passing wheel and the left vertical tangent of the driven passing wheel coincide with the vertical center line of the glass tube, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920223337.7U CN210104007U (en) | 2019-02-22 | 2019-02-22 | Weld and take annealing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920223337.7U CN210104007U (en) | 2019-02-22 | 2019-02-22 | Weld and take annealing device |
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| CN210104007U true CN210104007U (en) | 2020-02-21 |
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| CN201920223337.7U Active CN210104007U (en) | 2019-02-22 | 2019-02-22 | Weld and take annealing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609735A (en) * | 2019-02-22 | 2019-04-12 | 西安泰力松新材料股份有限公司 | A kind of welding annealing device and method for annealing |
| CN117363880A (en) * | 2023-10-12 | 2024-01-09 | 宿州巨仁光伏材料有限公司 | Heat treatment equipment and method for improving yield performance of photovoltaic solder strip |
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2019
- 2019-02-22 CN CN201920223337.7U patent/CN210104007U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609735A (en) * | 2019-02-22 | 2019-04-12 | 西安泰力松新材料股份有限公司 | A kind of welding annealing device and method for annealing |
| CN109609735B (en) * | 2019-02-22 | 2023-12-22 | 西安泰力松新材料股份有限公司 | Welding strip annealing device and annealing method |
| CN117363880A (en) * | 2023-10-12 | 2024-01-09 | 宿州巨仁光伏材料有限公司 | Heat treatment equipment and method for improving yield performance of photovoltaic solder strip |
| CN117363880B (en) * | 2023-10-12 | 2024-02-27 | 宿州巨仁光伏材料有限公司 | Heat treatment equipment and method for improving yield performance of photovoltaic solder strip |
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