Unwinding device and photovoltaic cell manufacturing equipment

Abstract

The utility model discloses an unreeling device and photovoltaic cell manufacturing equipment, the unreeling device comprises a base plate, a buffer mechanism and an auxiliary unreeling mechanism, the buffer mechanism is arranged on the base plate, the buffer mechanism is used for buffering a welding piece with a preset length; the auxiliary unwinding mechanism comprises an unwinding driving assembly and a plurality of guide wheels which are arranged on the bottom plate, the unwinding driving assembly can drive at least one guide wheel to reciprocate in the first direction so as to pull out the welding part cached by the caching mechanism, and the first direction is perpendicular to the thickness direction of the bottom plate and parallel to the plate face direction of the bottom plate. According to the utility model, the clamping force of the clamping piece for clamping a welding piece such as a welding wire can be reduced, so that the risk that the welding piece is separated from the clamping piece is reduced, and the manufacturing efficiency of a photovoltaic cell is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to an unwinding device and photovoltaic cell manufacturing equipment. Background Art

[0002] The existing unwinding device includes a buffer mechanism, which can buffer a section of welding parts such as welding wire, and then clamp the end of the welding wire through a clamping member and pull out a section of welding wire from the buffer mechanism. However, since the clamping force required in this unwinding device is relatively large, the welding wire is prone to detach from the clamping member during the process of the clamping member pulling the welding wire, which is not conducive to improving the manufacturing efficiency of photovoltaic cells. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a reeling device and photovoltaic cell manufacturing equipment, which can reduce the clamping force of the clamping member clamping welding parts such as welding wires, thereby reducing the risk of the welding parts detaching from the clamping member, and further improving the manufacturing efficiency of photovoltaic cells.

[0004] In order to solve the above technical problems, in a first aspect, the utility model provides a reeling device, the reeling device comprising:

[0005] Base plate;

[0006] A cache mechanism, the cache mechanism is arranged on the bottom plate, and the cache mechanism is used to cache welded parts of a preset length;

[0007] An auxiliary unwinding mechanism includes an unwinding drive assembly and a plurality of guide wheels arranged on the base plate, wherein the unwinding drive assembly can drive at least one of the guide wheels to reciprocate along a first direction to pull out the weldment cached by the cache mechanism, wherein the first direction is perpendicular to the thickness direction of the base plate and parallel to the plate surface direction of the base plate.

[0008] In a possible implementation, the plurality of guide wheels include a first guide wheel, a second guide wheel, and a third guide wheel which are arranged in sequence along a second direction, the second direction being perpendicular to the first direction and parallel to the surface direction of the base plate, and in the first direction, the second guide wheel is located above the first guide wheel and the third guide wheel, and the unwinding drive assembly drives the second guide wheel to reciprocate along the first direction, or the unwinding drive assembly drives the first guide wheel and the third guide wheel to reciprocate along the first direction.

[0009] In a possible implementation, the auxiliary unwinding mechanism further includes a mounting frame movably disposed on the bottom plate along the first direction, and the unwinding drive assembly is connected to the mounting frame;

[0010] The first guide wheel and the third guide wheel are both mounted on the mounting frame, and the first guide wheel and the third guide wheel are flush in the first direction.

[0011] In a possible implementation, the base plate is further provided with a first guide groove and a second guide groove parallel to each other, the first guide groove and the second guide groove both guide along the first direction, the first guide wheel can be movably disposed in the first guide groove, and the third guide wheel can be movably disposed in the second guide groove.

[0012] In one possible implementation, the unwinding drive assembly includes an unwinding drive machine disposed on the base plate, a driving wheel and a driven wheel movably disposed relative to the base plate, and a conveyor belt connecting the driving wheel and the driven wheel, the output shaft of the unwinding drive machine is connected to the driving wheel, the driving wheel and the driven wheel are spaced apart along the first direction, and the mounting frame is connected to the conveyor belt.

[0013] In a possible implementation, the cache mechanism and the auxiliary unwinding mechanism are spaced apart along the second direction, the cache mechanism has a first side and a second side relative to each other along the first direction, the first side is provided with a cache roller for caching the weldment of a preset length, and the auxiliary unwinding mechanism is located on the second side.

[0014] In a possible implementation, the unwinding device also includes a plurality of first guide wheels rotatably disposed on the bottom plate, the plurality of first guide wheels are arranged in sequence and spaced apart along the conveying direction of the weldment, and the plurality of first guide wheels are located between the cache mechanism and the auxiliary unwinding mechanism.

[0015] In a possible implementation, the cache mechanism also includes a controller, a cache drive motor electrically connected to the controller, and a position detector, the cache drive motor is connected to the cache roller, the position detector can detect the position of the cache roller when the cache drive motor drives the cache roller to move along the first direction, and the controller can control the cache drive motor to stop driving when the position detector detects the cache roller.

[0016] In a possible implementation, the unwinding device also includes a plurality of second guide wheels rotatably disposed on the base plate, the plurality of second guide wheels being arranged in sequence and spaced apart along the conveying direction of the weldment, and the plurality of second guide wheels being used to guide the weldment leaving the auxiliary unwinding mechanism.

[0017] In a second aspect, the utility model further provides a photovoltaic cell manufacturing device, the photovoltaic cell manufacturing device comprising:

[0018] The unwinding device according to the first aspect;

[0019] A clamping member is used to clamp the free end of the welding member leaving the auxiliary unwinding mechanism.

[0020] Compared with the prior art, this application has at least the following beneficial effects:

[0021] In the present application, the free end of the welded piece is sequentially wound around a plurality of guide wheels through a cache mechanism and finally clamped and fixed by a clamping member. When the clamping member fixes the free end of the welded piece, the cache mechanism first caches a welded piece of a preset length, and then the unwinding drive assembly drives at least one guide wheel to move back and forth along a first direction. During this process, the welded piece cached by the cache mechanism can be pulled out, and the welded piece wound between the plurality of guide wheels can be loosened, thereby facilitating the clamping member to pull the welded piece out of the auxiliary unwinding mechanism. It can be seen that compared with the clamping member directly pulling the welded piece from the cache mechanism, the present application, by setting an auxiliary unwinding mechanism, can drive at least one guide wheel through the unwinding drive assembly between the clamping member pulling the welded piece so that the welded piece cached by the cache mechanism enters the auxiliary unwinding mechanism, and loosens the welded piece wound between the guide wheels. When the clamping member pulls the welded piece, only a small clamping force is required to pull the welded piece out, thereby greatly reducing the clamping force of the clamping member clamping the welded piece, thereby avoiding the welded piece from detaching from the clamping member, thereby improving the manufacturing efficiency of the photovoltaic cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 One of the front views of the unwinding device provided in the embodiment of the utility model;

[0024] Figure 2 A front view of the auxiliary unwinding mechanism provided by an embodiment of the utility model;

[0025] Figure 3 A side view of the auxiliary unwinding mechanism provided in an embodiment of the utility model;

[0026] Figure 4 A second front view of the unwinding device provided in an embodiment of the utility model;

[0027] Figure 5 for Figure 4 Side view of the mid-unwinding device;

[0028] Figure 6A schematic structural diagram of a photovoltaic cell manufacturing device provided in an embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 1A-weld parts;

[0031] 100-unwinding device;

[0032] 110-bottom plate; 111-first guide groove; 112-second guide groove;

[0033] 120 - cache mechanism; 121 - first side; 122 - second side; 123 - cache roller;

[0034] 130-auxiliary unwinding mechanism; 131-unwinding drive assembly; 1311-unwinding drive machine; 1312-driving wheel; 1313-driven wheel; 1314-conveyor belt; 132-guide wheel; 1321-first guide wheel; 1322-second guide wheel; 1323-third guide wheel;

[0035] 140-mounting frame;

[0036] 151-first guide wheel; 152-second guide wheel;

[0037] 200- Photovoltaic cell manufacturing equipment; 210- Clamping parts. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0040] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0041] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0042] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0043] The present application is described in detail below through specific embodiments:

[0044] See also Figure 1 The embodiment of the present application provides a reeling device 100, which includes a base plate 110, a cache mechanism 120 and an auxiliary reeling mechanism 130, wherein the cache mechanism 120 is arranged on the base plate 110, and the cache mechanism 120 is used to cache a weldment 1A of a preset length; the auxiliary reeling mechanism 130 includes an reeling drive component 131 and a plurality of guide wheels 132 arranged on the base plate 110, and the reeling drive component 131 can drive at least one guide wheel 132 to reciprocate along a first direction to pull out the weldment 1A cached by the cache mechanism 120, and the first direction is perpendicular to the thickness direction of the base plate 110 and parallel to the plate surface direction of the base plate 110.

[0045] Among them, the above-mentioned welding part 1A can be a strip-shaped component such as a welding wire or a welding strip. The specific value of the above-mentioned preset length is not limited. Technical personnel in this field can set the specific value of the preset length according to actual processing needs.

[0046] In addition, the first direction may be any direction parallel to the bottom plate 110. Figure 1 For example, the first direction is the direction indicated by the arrow X.

[0047] In addition, the above-mentioned multiple guide wheels 132 refer to three or more guide wheels 132, and the above-mentioned unwinding drive component 131 can drive at least one guide wheel 132 to reciprocate along the first direction. It should be understood that the unwinding drive component 131 can drive one guide wheel 132 among the multiple guide wheels 132 to reciprocate along the first direction, or, the unwinding drive component 131 can drive two guide wheels 132 among the multiple guide wheels 132 to reciprocate along the first direction. In this way, the welding part 1A cached in the cache mechanism 120 can be pulled out by driving at least one guide wheel 132 to reciprocate along the first direction by the unwinding drive component 131.

[0048] In this embodiment, the free end of the welding piece 1A is sequentially wound around a plurality of guide wheels 132 through the buffer mechanism 120 and finally clamped and fixed by the clamping member. When the clamping member fixes the free end of the welding piece 1A, the buffer mechanism 120 first buffers the welding piece 1A of a preset length, and then the unwinding drive assembly 131 drives at least one guide wheel 132 to move back and forth along the first direction. In this process, the welding piece 1A buffered by the buffer mechanism 120 can be pulled out, and the welding piece 1A wound between the plurality of guide wheels 132 can be loosened, so as to facilitate the clamping member to pull the welding piece 1A out of the auxiliary unwinding mechanism 130. It can be seen that compared with the clamping member, The welding part 1A is directly pulled out of the buffer mechanism 120. In this embodiment, an auxiliary unwinding mechanism 130 is provided. During the period when the clamping part pulls the welding part 1A, at least one guide wheel 132 can be driven by the unwinding driving assembly 131 so that the welding part 1A cached in the buffer mechanism 120 enters the auxiliary unwinding mechanism 130, and the welding part 1A wound between the guide wheels 132 is loosened. When the clamping part pulls the welding part 1A, only a small clamping force is required to pull out the welding part 1A, thereby greatly reducing the clamping force of the clamping part clamping the welding part 1A, thereby avoiding the situation where the welding part 1A is separated from the clamping part, thereby improving the manufacturing efficiency of the photovoltaic cell.

[0049] In some possible embodiments, see Figure 2 The multiple guide wheels 132 include a first guide wheel 1321, a second guide wheel 1322 and a third guide wheel 1323 which are arranged in sequence along the second direction. The second direction is perpendicular to the first direction and parallel to the surface direction of the base plate 110. In the first direction, the second guide wheel 1322 is located above the first guide wheel 1321 and the third guide wheel 1323. The unwinding drive assembly 131 drives the second guide wheel 1322 to reciprocate along the first direction, or the unwinding drive assembly 131 drives the first guide wheel 1321 and the third guide wheel 1323 to reciprocate along the first direction.

[0050] Among them, the attached Figure 2 For example, the second direction refers to Figure 2 The direction indicated by the arrow Y.

[0051] In addition, the above-mentioned unwinding drive component 131 drives the second guide wheel 1322 to reciprocate along the first direction, or the unwinding drive component 131 drives the first guide wheel 1321 and the third guide wheel 1323 to reciprocate along the first direction. It should be understood that when the unwinding drive component 131 drives the second guide wheel 1322 to reciprocate along the first direction, the first guide wheel 1321 and the third guide wheel 1323 are fixed relative to the base plate 110 in the first direction; when the unwinding drive component 131 drives the first guide wheel 1321 and the third guide wheel 1323 to reciprocate along the first direction, the second guide wheel 1322 is fixed relative to the base plate 110 in the first direction.

[0052] Based on the structure in the above embodiment, the free end of the welded part 1A coming out of the buffer mechanism 120 is sequentially wound around the first guide wheel 1321, the second guide wheel 1322 and the third guide wheel 1323 and then extends out of the auxiliary unwinding mechanism 130, or the free end of the welded part 1A coming out of the buffer mechanism 120 is sequentially wound around the third guide wheel 1323, the second guide wheel 1322 and the first guide wheel 1321 and then extends out of the auxiliary unwinding mechanism 130, when the unwinding driving component 131 drives the second guide wheel 1322 to reciprocate along the first direction, the second guide wheel 1322 is reciprocated by the second guide wheel 1323. 22 reciprocates in the first direction, which can loosen the welding part 1A between the first guide wheel 1321 and the second guide wheel 1322 and between the second guide wheel 1322 and the third guide wheel 1323, thereby facilitating the clamping part to pull out the welding part 1A. Similarly, when the unwinding drive assembly 131 drives the first guide wheel 1321 and the third guide wheel 1323 to reciprocate along the first direction, it can also loosen the welding part 1A between the first guide wheel 1321 and the second guide wheel 1322 and between the second guide wheel 1322 and the third guide wheel 1323, thereby facilitating the clamping part to pull out the welding part 1A.

[0053] It can be seen that the above gives two situations in which the unwinding drive component 131 drives the guide wheel 132. The following mainly takes the unwinding drive component 131 driving the first guide wheel 1321 and the second guide wheel 1322 as an example for detailed description.

[0054] In some possible embodiments, see Figure 2 The auxiliary unwinding mechanism 130 also includes a mounting frame 140 movably arranged on the base plate 110 along the first direction, and the unwinding drive assembly 131 is connected to the mounting frame 140; the first guide wheel 1321 and the third guide wheel 1323 are both installed on the mounting frame 140, and the first guide wheel 1321 and the third guide wheel 1323 are flush in the first direction.

[0055] Since the unwinding drive assembly 131 is connected to the mounting frame 140, and the first guide wheel 1321 and the third guide wheel 1323 are both installed on the mounting frame 140, when the unwinding drive assembly 131 drives the mounting frame 140, the mounting frame 140 can simultaneously drive the first guide wheel 1321 and the third guide wheel 1323 to reciprocate in the first direction, thereby simplifying the connection structure between the unwinding drive assembly 131 and the first guide wheel 1321 and the third guide wheel 1323, and also ensuring the synchronization of the movement of the first guide wheel 1321 and the third guide wheel 1323.

[0056] In addition, since the first guide wheel 1321 and the third guide wheel 1323 are flush in the first direction, it can ensure that the lengths of the welding part 1A between the first guide wheel 1321 and the second guide wheel 1322 and between the second guide wheel 1322 and the third guide wheel 1323 are equal or approximately equal, thereby ensuring that the welding part 1A can be pulled out smoothly.

[0057] In some possible embodiments, see Figure 2 A first guide groove 111 and a second guide groove 112 which are parallel to each other are also provided on the bottom plate 110. Both the first guide groove 111 and the second guide groove 112 guide in a first direction. The first guide wheel 1321 is movably disposed in the first guide groove 111, and the third guide wheel 1323 is movably disposed in the second guide groove 112.

[0058] Therefore, by setting the first guide groove 111 and the second guide groove 112 on the base plate 110, and the first guide wheel 1321 can be movably set in the first guide groove 111, and the third guide wheel 1323 can be movably set in the second guide groove 112, the first guide wheel 1321 and the third guide wheel 1323 can be guided respectively when the mounting frame 140 drives the first guide wheel 1321 and the third guide wheel 1323 to reciprocate along the first direction, so as to ensure the consistency of the movement trajectories of the first guide wheel 1321 and the third guide wheel 1323 in the first direction.

[0059] In some possible embodiments, see Figure 2 and Figure 3 The unwinding drive assembly 131 includes an unwinding drive machine 1311 arranged on the base plate 110, a driving wheel 1312 and a driven wheel 1313 movably arranged relative to the base plate 110, and a conveyor belt 1314 connecting the driving wheel 1312 and the driven wheel 1313. The output shaft of the unwinding drive machine 1311 is connected to the driving wheel 1312, the driving wheel 1312 and the driven wheel 1313 are spaced apart along the first direction, and the mounting frame 140 is connected to the conveyor belt 1314.

[0060] Among them, the unwinding drive machine 1311 can be a rotary motor, a rotary motor, etc.

[0061] In addition, the above-mentioned mounting frame 140 is connected to the conveyor belt 1314. It should be understood that the mounting frame 140 is directly connected to the conveyor belt 1314 or is connected through other connecting parts. For example, the mounting frame 140 is connected to the outer wall of one side of the conveyor belt 1314. In this way, when the unwinding drive machine 1311 drives the driving wheel 1312 to rotate clockwise, the mounting frame 140 can drive the first guide wheel 1321 and the third guide wheel 1323 to move away from the second guide wheel 1322. Conversely, when the unwinding drive machine 1311 drives the driving wheel 1312 to rotate counterclockwise, the mounting frame 140 can drive the first guide wheel 1321 and the third guide wheel 1323 to move closer to the second guide wheel 1322. In this way, the welding part 1A between the first guide wheel 1321 and the second guide wheel 1322 and the second guide wheel 1322 and the third guide wheel 1323 is relaxed, which is more conducive to the clamping part to pull out the welding part 1A.

[0062] Of course, in some other embodiments, the unwinding drive assembly 131 may also be an unwinding drive machine 1311 and a gear transmission structure connected to the unwinding drive machine 1311 .

[0063] In some possible embodiments, see Figure 4 and Figure 5 The cache mechanism 120 and the auxiliary unwinding mechanism 130 are arranged at intervals along the second direction. The cache mechanism 120 has a first side 121 and a second side 122 relative to each other along the first direction. The first side 121 is provided with a cache roller 123 for caching the welding part 1A of a preset length. The auxiliary unwinding mechanism 130 is located on the second side 122.

[0064] Since the first side 121 is provided with a buffer roller 123 and the auxiliary unwinding mechanism 130 is located on the second side 122 , interference of the auxiliary unwinding mechanism 130 with the buffer roller 123 can be avoided.

[0065] In some possible embodiments, see Figure 4 The unwinding device 100 also includes a plurality of first guide wheels 151 rotatably disposed on the bottom plate 110 , the plurality of first guide wheels 151 are arranged in sequence along the conveying direction of the weldment 1A, and the plurality of first guide wheels 151 are located between the buffer mechanism 120 and the auxiliary unwinding mechanism 130 .

[0066] Since the multiple first guide wheels 151 are arranged in sequence along the conveying direction of the weldment 1A, and the multiple first guide wheels 151 are located between the cache mechanism 120 and the auxiliary unwinding mechanism 130, the weldment 1A leaving the cache mechanism 120 passes through the multiple first guide wheels 151 and the auxiliary unwinding mechanism 130 in sequence, and is finally pulled out by the clamping member. It can be seen that by setting up the multiple first guide wheels 151, the sliding friction of the weldment 1A between the cache mechanism 120 and the auxiliary unwinding mechanism 130 can be converted into rolling friction, thereby reducing the friction force of the weldment 1A between the cache mechanism 120 and the auxiliary unwinding mechanism 130. In addition, the guidance of the first guide wheels 151 can avoid the wear of the weldment 1A by other components, and at the same time, the weldment 1A cached in the cache mechanism 120 can also be introduced into the auxiliary unwinding mechanism 130.

[0067] In addition, the above-mentioned multiple first guide wheels 151 refer to two or more first guide wheels 151. For example, there are two first guide wheels 151, one first guide wheel 151 is arranged near the export port of the cache mechanism 120, and the other first guide wheel 151 is arranged near the import port of the auxiliary unwinding mechanism 130.

[0068] In some possible embodiments, the cache mechanism 120 also includes a controller, a cache drive motor electrically connected to the controller, and a position detector, the cache drive motor is connected to the cache roller 123, the position detector can detect the position of the cache roller 123 when the cache drive motor drives the cache roller 123 to move along a first direction, and the controller can control the cache drive motor to stop driving when the position detector detects the cache roller 123.

[0069] Therefore, the position detector and the cache drive are electrically connected to the controller, so that the length of the weldment 1A cached by the cache mechanism 120 can be controlled according to the moving distance of the cache roller 123, and the structure is simple and easy to control.

[0070] In some possible embodiments, see Figure 4 The unwinding device 100 also includes a plurality of second guide wheels 152 rotatably disposed on the bottom plate 110 . The plurality of second guide wheels 152 are arranged in sequence and spaced apart along the conveying direction of the weldment 1A. The plurality of second guide wheels 152 are used to guide the weldment 1A leaving the auxiliary unwinding mechanism 130 .

[0071] Therefore, by setting up multiple second guide wheels 152, the welding part 1A passing through the third guide wheel 1323 can be guided. In other words, the multiple second guide wheels 152 can guide the welding part 1A between the third guide wheel 1323 and the clamping part, which can not only control the transmission direction of the welding part 1A, but also avoid interference between the welding part 1A and other components and damage.

[0072] In addition, the above-mentioned multiple second guide wheels 152 refer to two or more second guide wheels 152. For example, the second guide wheels 152 include two, and the two second guide wheels 152 are arranged on the side close to the driven wheel 1313. The welding part 1A that passes around the third guide wheel 1323 passes around the two second guide wheels 152 in turn and is fixed by the clamping part.

[0073] See also Figure 6 The embodiment of the present application also provides a photovoltaic cell manufacturing device 200, which includes a clamping member 210 and the unwinding device 100 in the above embodiment, wherein the clamping member 210 is used to clamp the free end of the welding member 1A leaving the auxiliary unwinding mechanism 130.

[0074] Among them, the unwinding device 100 in the embodiment of the present application can have the same structure as any unwinding device 100 in the above embodiments, and can bring the same or similar beneficial effects. For details, please refer to the description in the above embodiments, and the embodiment of the present application will not be repeated here.

[0075] In addition, the clamping member 210 may be a clamp, a clamp, or the like.

[0076] Since the photovoltaic cell manufacturing equipment 200 in this embodiment applies the unwinding device 100 in the above embodiment, the manufacturing efficiency of the photovoltaic cell by the photovoltaic cell manufacturing equipment 200 can be improved.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A reeling device, characterized in that: include: Bottom plate (110); A cache mechanism (120), the cache mechanism (120) being arranged on the bottom plate (110), the cache mechanism (120) being used to cache a welded part (1A) of a preset length; An auxiliary unwinding mechanism (130), the auxiliary unwinding mechanism (130) comprising an unwinding drive assembly (131) and a plurality of guide wheels (132) arranged on the base plate (110), the unwinding drive assembly (131) being capable of driving at least one of the guide wheels (132) to reciprocate along a first direction to pull out the weldment (1A) cached by the cache mechanism (120), wherein the first direction is perpendicular to the thickness direction of the base plate (110) and parallel to the plate surface direction of the base plate (110).

2. The unwinding device according to claim 1, characterized in that: The multiple guide wheels (132) include a first guide wheel (1321), a second guide wheel (1322) and a third guide wheel (1323) which are arranged in sequence along a second direction, the second direction is perpendicular to the first direction and parallel to the surface direction of the base plate (110), in the first direction, the second guide wheel (1322) is located above the first guide wheel (1321) and the third guide wheel (1323), the unwinding drive component (131) drives the second guide wheel (1322) to reciprocate along the first direction, or the unwinding drive component (131) drives the first guide wheel (1321) and the third guide wheel (1323) to reciprocate along the first direction.

3. The unwinding device according to claim 2, characterized in that: The auxiliary unwinding mechanism (130) further comprises a mounting frame (140) movably arranged on the bottom plate (110) along the first direction, and the unwinding drive assembly (131) is connected to the mounting frame (140); The first guide wheel (1321) and the third guide wheel (1323) are both mounted on the mounting frame (140), and the first guide wheel (1321) and the third guide wheel (1323) are flush in the first direction.

4. The unwinding device according to claim 3, characterized in that: The bottom plate (110) is also provided with a first guide groove (111) and a second guide groove (112) which are parallel to each other. The first guide groove (111) and the second guide groove (112) both guide along the first direction. The first guide wheel (1321) is movably arranged in the first guide groove (111), and the third guide wheel (1323) is movably arranged in the second guide groove (112).

5. The unwinding device according to claim 3, characterized in that: The unwinding drive assembly (131) comprises an unwinding drive machine (1311) arranged on the base plate (110), a driving wheel (1312) and a driven wheel (1313) movably arranged relative to the base plate (110), and a conveyor belt (1314) connecting the driving wheel (1312) and the driven wheel (1313), the output shaft of the unwinding drive machine (1311) is connected to the driving wheel (1312), the driving wheel (1312) and the driven wheel (1313) are arranged at intervals along the first direction, and the mounting frame (140) is connected to the conveyor belt (1314).

6. The unwinding device according to claim 2, characterized in that: The cache mechanism (120) and the auxiliary unwinding mechanism (130) are arranged at intervals along the second direction; the cache mechanism (120) has a first side (121) and a second side (122) opposite to each other along the first direction; the first side (121) is provided with a cache roller (123) for caching the weldment (1A) of a preset length; and the auxiliary unwinding mechanism (130) is located on the second side (122).

7. The unwinding device according to claim 6, characterized in that: The unwinding device further comprises a plurality of first guide wheels (151) rotatably arranged on the bottom plate (110), wherein the plurality of first guide wheels (151) are arranged in sequence and spaced apart along the conveying direction of the weldment (1A), and the plurality of first guide wheels (151) are located between the buffer mechanism (120) and the auxiliary unwinding mechanism (130).

8. The unwinding device according to claim 6, characterized in that: The cache mechanism (120) also includes a controller, a cache drive motor electrically connected to the controller, and a position detector, wherein the cache drive motor is connected to the cache roller (123), and the position detector is capable of detecting the position of the cache roller (123) when the cache drive motor drives the cache roller (123) to move along the first direction, and the controller is capable of controlling the cache drive motor to stop driving when the position detector detects the cache roller (123).

9. The unwinding device according to claim 3, characterized in that: The unwinding device further comprises a plurality of second guide wheels (152) rotatably arranged on the bottom plate (110), wherein the plurality of second guide wheels (152) are arranged in sequence and spaced apart along the conveying direction of the welded part (1A), and the plurality of second guide wheels (152) are used to guide the welded part (1A) leaving the auxiliary unwinding mechanism (130).

10. A photovoltaic cell manufacturing device, characterized in that: include: The unwinding device (100) according to any one of claims 1 to 9; A clamping member (210) is used to clamp the free end of the welding member (1A) leaving the auxiliary unwinding mechanism (130).

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