Unwinding equipment and assembly line

Abstract

The utility model discloses an unwinding device and an assembly line, and the unwinding device comprises a base, a slicing device, a deviation rectifying device and an unwinding device. The slicing device is arranged on the base and provided with an inlet, the inlet is provided with a position detector, the slicing device is used for cutting a material belt, and the position detector is used for detecting the position of the material belt. The deviation rectifying device is arranged on the base, the deviation rectifying device and the slicing device are arranged in a spaced mode, and the deviation rectifying device is further electrically connected with the position detector. The unwinding device is arranged on the deviation rectifying device and provided with a conveying channel, and the conveying channel is used for conveying the material belt to the inlet. The deviation correcting device drives the unwinding device to move, so that the conveying channel is right opposite to the inlet. The technical scheme of the utility model has the advantage of improving the deviation rectifying precision and the slicing precision.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production equipment, in particular to an unwinding device and an assembly line. Background Art

[0002] The existing lithium battery cell is made of a positive electrode sheet, a negative electrode sheet and a separator through a lamination process, and before the lamination process, the electrode sheet strip needs to be cut into the shape of the electrode sheet.

[0003] Existing unwinding equipment usually consists of multiple roller structures to form a transport channel for the pole piece strip. When the strip deviates, the position or angle of the roller structure is adjusted to adjust the position of the strip in the transport channel to correct the deviation of the strip. However, the roller structure is still some distance away from the cutting position, so that the strip is prone to deviate again during subsequent transportation even after correction. Utility Model Content

[0004] The main purpose of the utility model is to provide an unwinding device and an assembly line, aiming to solve the problem that the unwinding is easy to deviate and cause insufficient precision when cutting the pole piece.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a reeling device, comprising:

[0006] Pedestal;

[0007] A slicing device, the slicing device is arranged on the base and is provided with an entrance, the entrance is provided with a position detector, the slicing device is used to cut the material strip, and the position detector is used to detect the position of the material strip;

[0008] A deviation correction device, which is disposed on the base, spaced apart from the slicing device, and electrically connected to the position detector; and

[0009] An unwinding device, the unwinding device is arranged on the deviation-correcting device, the unwinding device is provided with a transport channel, and the transport channel is used to transport the material strip to the inlet;

[0010] Wherein, the deviation-correcting device drives the unwinding device to move so that the transport channel is directly opposite to the entrance.

[0011] Optionally, the slicing device is provided with a cutting channel, one end of the cutting channel is the inlet, and the position detector comprises:

[0012] Two brackets, the two brackets are arranged at the entrance of the cutting channel and located on both sides of the cutting channel;

[0013] Two photoelectric sensors, one photoelectric sensor is arranged on one of the brackets, and the two photoelectric sensors respectively detect the two side edges of the material strip.

[0014] Optionally, the deviation correcting device comprises:

[0015] a driving assembly connected to the base, and the slicing device is disposed on the driving assembly; and

[0016] A controller, the controller being electrically connected to the driving assembly and also electrically connected to the position detector;

[0017] The transport channel transports the material strip along a first direction, the drive assembly drives the unwinding device to move along a second direction, and the first direction and the second direction are arranged at an angle.

[0018] Optionally, the driving assembly comprises:

[0019] a slide rail, the slide rail being disposed on the base and extending along the second direction; and

[0020] The frame is provided with a slider, the slider is slidably connected to the slide rail, and the unwinding device is arranged on the frame.

[0021] Optionally, the driving assembly includes a plurality of the slide rails, the plurality of the slide rails are evenly and spaced apart on the base, the frame is provided with a plurality of the sliders, and one slider is slidably connected to one of the slide rails.

[0022] Optionally, the unwinding device comprises:

[0023] A mounting plate, the mounting plate being arranged on the deviation correcting device;

[0024] a material tray, the material tray being rotatably connected to the mounting plate and being used to provide the material strip; and

[0025] A roller assembly is rotatably connected to the mounting plate, and the roller assembly is provided with the transport channel, one end of the transport channel extends to the material tray, and the other end extends to the inlet.

[0026] Optionally, the roller assembly comprises:

[0027] At least two steering rollers, at least two of which are rotatably connected to the mounting plate and are respectively located at the entrance of the transport channel and the exit of the transport channel;

[0028] a buffer roller, the buffer roller being movably connected to the mounting plate and used for buffering the material strip; and

[0029] A tensioning roller is movably connected to the mounting plate and is used for tensioning the material belt.

[0030] Optionally, the unwinding device further comprises a material pressing structure, the material pressing structure is provided with an elastic member, one end of the elastic member elastically abuts against the steering roller and / or the buffer roller and / or the tensioning roller.

[0031] Optionally, the unwinding device includes two material trays, which are rotatably connected to the mounting plate and are arranged at intervals, and either of the two material trays is connected to the transport channel.

[0032] The utility model also proposes an assembly line, comprising:

[0033] processing equipment; and

[0034] Any of the above-mentioned unwinding devices, wherein the unwinding device is connected to the processing equipment.

[0035] The technical solution of the utility model adopts an unwinding device that can adjust the position of the material strip as a whole. The unwinding device includes an unwinding device provided with a transportation channel and a slicing device provided with an entrance. The transportation channel and the entrance are connected. A position detector is provided at the entrance to detect the position of the material strip entering the slicing device. A correction device is provided at the bottom of the unwinding device, which can drive the unwinding device to move relative to the slicing device, thereby changing the position of the material strip entering the cutting channel. When the position detector detects that the position of the material strip entering the cutting channel is deviated, feedback is given to the correction device to adjust the position of the unwinding device, thereby adjusting the position of the material strip entering the cutting channel. Through this solution, the position of the material strip entering the cutting process is directly adjusted, so there is no need to make too many adjustments during the transportation of the material strip, thereby improving the slicing accuracy and reducing the complexity of the unwinding structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0037] Figure 1 It is a structural schematic diagram of the unwinding device of the utility model;

[0038] Figure 2 It is a structural schematic diagram of the tensioning roller of the unwinding device of the utility model;

[0039] Figure 3 It is a schematic structural diagram of the buffer roller of the unwinding device of the utility model.

[0040] Description of Figure Numbers:

[0041]

[0042]

[0043] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] 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.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0047] Combination Figures 1 to 3 The utility model proposes an embodiment, in which the unwinding device includes a base 1, a slicing device 5, a deviation correction device 3 and an unwinding device 2. The slicing device 5 is arranged on the base 1 and is provided with an entrance, and the entrance is provided with a position detector 4, the slicing device 5 is used to cut the material strip 6, and the position detector 4 is used to detect the position of the material strip 6. The deviation correction device 3 is arranged on the base 1, and is spaced apart from the slicing device 5, and is also electrically connected to the position detector 4. The unwinding device 2 is arranged on the deviation correction device 3, and the unwinding device 2 is provided with a transportation channel 20, and the transportation channel 20 is used to transport the material strip 6 to the entrance. Among them, the deviation correction device 3 drives the unwinding device 2 to move so that the transportation channel 20 is directly opposite to the entrance.

[0048] Specifically, the base 1 can be directly replaced by a bottom plate, or a machine plate, and the machine plate is provided with a tripod to adjust the level of the machine plate. The slicing device 5 is provided on the base 1, and the slicing device 5 is provided with a cutting channel 51, and the cutting channel 51 is provided with an entrance and an exit. After the material strip 6 enters the cutting channel 51 from the entrance and is cut into slices by the cutter, it leaves from the exit. The distance between the entrance of the cutting channel 51 and the cutter can be set closer to shorten the time from the material strip 6 entering the cutting channel 51 to being cut. The unwinding device 2 is connected to the base 1 through the deviation correction device 3, and the unwinding device 2 is provided with a transport channel 20, and the material strip 6 enters the slicing device 5 along the transport channel 20 into the entrance of the cutting channel 51. The deviation correction device 3 can drive the entire unwinding device 2 to move, so that the material strip 6 located in the transport channel 20 also moves, and then the position of the material strip 6 entering the cutting channel 51 can be adjusted. The connection between the cutting channel 51 and the transport channel 20 is the entrance, and the entrance part is provided with a position detector 4, which can detect the position of the material strip 6 when passing through the entrance. It can be understood that the material strip 6 has an edge, and the position of the material strip 6 can be known by detecting the position of the edge.

[0049] Through this embodiment, an unwinding device that can adjust the position of the material strip 6 as a whole is adopted. The unwinding device includes an unwinding device 2 provided with a transportation channel 20 and a slicing device 5 provided with a cutting channel 51. The transportation channel 20 and the cutting channel 51 are connected. A position detector 4 is provided at the connection between the transportation channel 20 and the cutting channel 51, which can detect the position of the material strip 6 entering the cutting channel 51. A deviation correction device 3 is provided at the bottom of the unwinding device 2, which can drive the unwinding device 2 to move relative to the slicing device 5, thereby changing the position of the material strip 6 entering the cutting channel 51. When the position detector 4 detects that the position of the material strip 6 entering the cutting channel 51 is deviated, feedback is given to the deviation correction device 3 to adjust the position of the material strip 6 entering the cutting channel 51 by adjusting the position of the unwinding device 2. Through this solution, the position of the material strip 6 entering the cutting process is directly adjusted, so there is no need to make too many adjustments during the transportation of the material strip 6, thereby improving the slicing accuracy and reducing the complexity of the unwinding structure.

[0050] Combination Figures 1 to 3 The utility model proposes an embodiment, wherein the slicing device 5 is provided with a cutting channel 51, one end of the cutting channel 51 is the entrance, and the position detector 4 includes a bracket and a photoelectric sensor. Two brackets are provided at the entrance of the cutting channel 51 and are located on both sides of the cutting channel 51. A photoelectric sensor is provided on one bracket, and the two photoelectric sensors detect the edges of both sides of the material strip 6 respectively.

[0051] Specifically, each of the two sides of the cutting channel 51 is provided with a bracket, and each bracket is provided with a photoelectric sensor. The photoelectric sensor has a "C"-shaped structure, and has a space inside for the material belt 6 to pass through. The space is located at the connection between the transport channel 20 and the cutting channel 51.

[0052] Furthermore, the material belt 6 has two sides, left and right, and each side is provided with at least one photoelectric sensor. When the material belt 6 enters the photoelectric sensor, the photoelectric sensor can be triggered to determine the position of the material belt 6. The distance between the two photoelectric sensors is set so that at least one photoelectric sensor will be triggered when the material belt 6 deviates. The photoelectric sensor is electrically connected to the deviation correction device 3.

[0053] According to this embodiment, when the material belt 6 enters the cutting channel 51 from the entrance, if the photoelectric sensor on one side detects the material belt 6, it means that the material belt 6 has deviated from the position of the photoelectric sensor on that side, and then feedback is given to the deviation correction device 3, and the deviation correction device 3 drives the material belt 6 to move in the other direction until the photoelectric sensor on that side does not sense the material belt 6. Similarly, the photoelectric sensor on the other side operates in the same way. When and only when the material belt 6 is in the correct position, the photoelectric sensors on both sides are not triggered.

[0054] Combination Figures 1 to 3 The utility model proposes an embodiment, wherein the deflection correction device 3 includes a driving component 31 and a controller. The driving component 31 is connected to the base 1, and the slicing device 5 is arranged on the driving component 31. The controller is electrically connected to the driving component 31 and is also electrically connected to the position detector 4. The transport channel 20 transports the material strip 6 along the first direction 11, and the driving component 31 drives the unwinding device 2 to move along the second direction 12, and the first direction 11 and the second direction 12 are arranged at an angle.

[0055] Specifically, the deviation correction device 3 includes a driving component 31 and a controller. The driving component 31 is connected to the base 1. The driving component 31 is a base structure. The unwinding device 2 is arranged on the driving component 31. The driving component 31 can carry the unwinding device 2 to move. At the same time, the cutting device does not move, so that the driving component 31 can adjust the relative position of the transport channel 20 and the cutting channel 51, thereby changing the position where the material strip 6 enters the cutting channel 51. In addition, the driving component 31 is also provided with a controller, which can electrically connect the driving component 31 and the photoelectric sensor.

[0056] Furthermore, the driving assembly 31 may be a gear rack assembly, a slide rail slider assembly, or a cylinder assembly, etc. The first direction 11 of the transport channel 20 and the second direction 12 of the driving assembly 31 are arranged vertically, so that the driving assembly 31 can adjust the material belt 6 in the transport channel 20 in the shortest path. In addition, the two photoelectric sensors are also arranged at intervals along the second direction 12.

[0057] According to this embodiment, when a photoelectric sensor detects the material belt 6, it feeds back to the controller, and the controller controls the driving component 31 to drive the unwinding device 2 to move along the second direction 12, and then the unwinding device 2 drives the material belt 6 away from the photoelectric sensor. If another photoelectric sensor detects the material belt 6, it feeds back to the controller, controls the driving component 31 to drive the unwinding device 2 to move in the opposite direction of the second direction 12, and then the unwinding device 2 drives the material belt 6 away from the photoelectric sensor. The position of the material belt 6 is adjusted repeatedly until the material belt 6 does not trigger the photoelectric sensor.

[0058] Combination Figures 1 to 3 The utility model proposes an embodiment, wherein the driving assembly 31 includes a slide rail and a frame 32. The slide rail is disposed on the base 1 and extends along the second direction 12. The frame 32 is provided with a slider, the slider is slidably connected to the slide rail, and the unwinding device 2 is disposed on the frame 32.

[0059] Specifically, the slide rails are installed on the base 1 along the second direction 12, and the two slide rails are arranged at intervals. The frame 32 includes a crossbeam 321, a vertical beam 322 connected to the crossbeam 321, and a reinforcing beam 323 connected between the crossbeam 321 and the vertical beam 322. At least two sliders are provided at the bottom of the crossbeam 321. The two frames 32 are respectively connected to the two slide rails through sliders, and the two sides of the unwinding device 2 are respectively connected to the two frames 32, so that the two frames 32 support the unwinding device 2, and the unwinding device 2 can slide along the guide rail. A screw and a motor assembly are also provided on the base 1, and the screw is connected to the unwinding device 2. The drive assembly 31 drives the screw to rotate so that the unwinding device 2 slides along the guide rail.

[0060] Through this embodiment, the unwinding device 2 is driven to move along the second direction 12 through the frame 32, the guide rail slider and the screw motor assembly. The guide rail slider assembly can withstand a large load, the frame 32 can ensure that the unwinding device 2 will not shake, and the screw motor assembly makes the displacement accuracy of the unwinding device 2 high, thereby improving the stability and accuracy of the deviation correction.

[0061] Combination Figures 1 to 3 The utility model proposes an embodiment, the driving assembly 31 includes a plurality of the slide rails, the plurality of the slide rails are evenly and spaced apart on the base 1, the frame 32 is provided with a plurality of the sliders, and one of the sliders is slidably connected to one of the slide rails.

[0062] Specifically, in addition to the two side frames 32 of the unwinding device 2, two guide rail slider assemblies are connected to the bottom of the unwinding device 2, and the guide rail and slider assembly are located below the center of gravity of the unwinding device 2. The guide rail slider assembly below the center of gravity can be shorter than the guide rail slider assembly connected to the frame 32.

[0063] Through this embodiment, a plurality of guide rail slider assemblies evenly support the unwinding device 2, so that the unwinding device 2 is supported for a long time without deformation, thereby ensuring that the conveying belt 6 of the transport channel 20 is smoothly conveyed.

[0064] Combination Figures 1 to 3 The utility model proposes an embodiment, wherein the unwinding device 2 comprises a mounting plate 21, a material tray 22 and a roller assembly 23. The mounting plate 21 is arranged on the deviation correction device 3. The material tray 22 is rotatably connected to the mounting plate 21, and is used to provide the material strip 6. The roller assembly 23 is rotatably connected to the mounting plate 21, and the roller assembly 23 is provided with the transport channel 20, one end of the transport channel 20 extends to the material tray 22, and the other end extends to the inlet.

[0065] Specifically, the mounting plate 21 is vertically arranged, and the two sides of the mounting plate 21 are respectively connected to the vertical beams 322 of the frame 32. The mounting plate 21 is provided with a material tray 22, and the material tray 22 provides the material belt 6 and the roller assembly 23. The roller assembly 23 includes a plurality of roller structures, and the roller structure is rotatably connected to the mounting plate 21 through a rotating shaft. A driver is provided on the other side of the mounting plate 21 to drive the roller structure to rotate. It can be understood that the material belt 6 is covered on a part of the surface of the roller structure, and the roller structure rotates to transport the material belt 6. The plurality of roller structures form the transport channel 20.

[0066] Through this embodiment, multiple roller structures obtain the material strip 6 from the material tray 22 and transport the material strip 6 to the slicing device 5. Due to the position accuracy of the roller structure or the roundness of the outer cylindrical surface, the material strip 6 may deviate during transportation. Therefore, the deviation correction device 3 moves multiple roller structures at the same time to drive the material strip 6. A photoelectric sensor is provided at the position of the last roller structure to detect the position of the material strip 6. Since the material strip 6 is cut after passing through the last roller structure, as long as it is ensured that the material strip 6 does not deviate when passing through the last roller structure, the possibility of deviation during the subsequent transportation of the material strip 6 is greatly reduced.

[0067] Combination Figures 1 to 3 The utility model proposes an embodiment, wherein the roller assembly 23 includes a steering roller 231, a buffer roller 233 and a tensioning roller 232. At least two steering rollers 231 are rotatably connected to the mounting plate 21, and are respectively located at the entrance of the transport channel 20 and the exit of the transport channel 20. The buffer roller 233 is movably connected to the mounting plate 21, and is used to buffer the material belt 6. The tensioning roller 232 is movably connected to the mounting plate 21, and is used to tension the material belt 6.

[0068] Specifically, one of the two steering rollers 231 is adjacent to the material tray 22, and the other is adjacent to the slicing device 5. The two steering rollers 231 serve as the starting point and the end point of the transport channel 20. The buffer roller 233 and the tensioning roller 232 are located in the middle of the transport channel 20, and play a supporting and adjusting role. The buffer roller 233 also includes a sliding component 2331, and the sliding component 2331 drives the buffer roller 233 to repeatedly move in the positive and negative directions along the first direction 11. The tensioning roller 232 also includes a rotating component 2321 and a force sensor, and the rotating component 2321 drives the tensioning roller 232 to rotate along an axis, and the force sensor can detect the tension of the material belt 6.

[0069] Through this embodiment, the material strip 6 in the material tray 22 enters the transport channel 20 through the steering roller 231, and then passes through the tensioning roller 232. The force sensor detects the tension of the material strip 6, and then the rotating component 2321 drives the tensioning roller 232 to rotate to stretch the material strip 6 to increase the tension or loosen the material strip 6 to reduce the tension. It can be understood that when the slicing device 5 cuts the material strip 6, the material strip 6 is in a stationary state, and the roller component 23 should not stop, because the continuous stopping and starting easily makes the transportation process of the material strip 6 unstable and it is difficult to ensure the accuracy. Therefore, when the material strip 6 is located in the slicing device 5 and is ready to be cut, the sliding component 2331 drives the buffer roller 233 to move in the opposite direction of the first direction 11, thereby extending the length of the transport channel 20 behind the buffer roller 233. The sliding distance of the buffer roller 233 is determined according to the transport speed of the transport channel 20. When the material strip 6 is cut, the sliding component 2331 drives the buffer roller 233 to move in the positive direction of the first direction 11, so that the material strip 6 can continue to be transported.

[0070] Combination Figures 1 to 3 The utility model proposes an embodiment, the unwinding device 2 also includes a material pressing structure, the material pressing structure is provided with an elastic member 24, one end of the elastic member 24 elastically abuts against the steering roller 231 and / or the buffer roller 233 and / or the tensioning roller 232.

[0071] Specifically, the pressing structure includes a support rod and an elastic member 24. The support rod is connected to the mounting plate 21 and is arranged parallel to the roller structure. The end of the support rod is connected to the elastic member 24. The elastic member 24 is an elastic stainless steel sheet. The stainless steel sheet is rotatably connected to the support rod and can be adjusted so that the stainless steel sheet abuts against the outer cylindrical surface of the roller structure. The pressing structure can be set on one or more of the steering roller 231, the buffer roller 233, and the tensioning roller 232.

[0072] Through this embodiment, the elastic member 24 abuts against the roller structure. Since the elastic member 24 is elastic, the material belt 6 can be transported through the gap between the elastic member 24 and the roller structure. The elastic member 24 also applies force to the material belt 6, so that the material belt 6 is not easy to deviate.

[0073] Combination Figures 1 to 3 The utility model proposes an embodiment, the unwinding device 2 includes two material trays 22, the two material trays 22 are rotatably connected to the mounting plate 21, and are arranged at intervals, and either of the two material trays 22 is connected to the transport channel 20.

[0074] Specifically, two material trays 22 are arranged at an interval, and one of them is a spare material tray 22 .

[0075] According to this embodiment, when one material tray 22 is feeding the material belt 6 to the transport channel 20, another material tray 22 is used as a spare material tray 22. When the material belt 6 of the material tray 22 is used up, the material belt 6 of the other material tray 22 can be directly connected to the remaining material. The material tray 22 that has used up the material belt 6 is replaced as the next spare material tray 22. The efficiency of the unwinding device is improved by the continuous alternating use, and too much time is not wasted due to replacing the material tray 22.

[0076] The utility model also proposes an assembly line, which includes a processing device and an unwinding device. The specific structure of the unwinding device refers to the above embodiment. Since the unwinding device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. The unwinding device is connected to the processing device.

[0077] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A reeling device, characterized in that: The unwinding device comprises: Pedestal; A slicing device, the slicing device is arranged on the base and is provided with an entrance, the entrance is provided with a position detector, the slicing device is used to cut the material strip, and the position detector is used to detect the position of the material strip; A deviation correction device, which is disposed on the base, spaced apart from the slicing device, and electrically connected to the position detector; and An unwinding device, the unwinding device is arranged on the deviation-correcting device, the unwinding device is provided with a transport channel, and the transport channel is used to transport the material strip to the inlet; Wherein, the deviation-correcting device drives the unwinding device to move so that the transport channel is directly opposite to the entrance.

2. The unwinding device according to claim 1, characterized in that: The slicing device is provided with a cutting channel, one end of the cutting channel is the inlet, and the position detector comprises: Two brackets, the two brackets are arranged at the entrance of the cutting channel and located on both sides of the cutting channel; Two photoelectric sensors, one photoelectric sensor is arranged on one of the brackets, and the two photoelectric sensors respectively detect the two side edges of the material strip.

3. The unwinding device according to claim 1, characterized in that: The deviation correcting device comprises: a driving assembly, the driving assembly being connected to the base, the slicing device being disposed on the driving assembly; and A controller, the controller being electrically connected to the driving assembly and also electrically connected to the position detector; The transport channel transports the material strip along a first direction, the drive assembly drives the unwinding device to move along a second direction, and the first direction and the second direction are arranged at an angle.

4. The unwinding device according to claim 3, characterized in that: The drive assembly comprises: a slide rail, the slide rail being disposed on the base and extending along the second direction; and The frame is provided with a slider, the slider is slidably connected to the slide rail, and the unwinding device is arranged on the frame.

5. The unwinding device according to claim 4, characterized in that: The driving assembly comprises a plurality of the slide rails, which are evenly and spaced apart on the base. The frame is provided with a plurality of the sliders, and one slider is slidably connected to one of the slide rails.

6. The unwinding device according to claim 1, characterized in that: The unwinding device comprises: A mounting plate, the mounting plate being arranged on the deviation correcting device; a material tray, the material tray being rotatably connected to the mounting plate and being used to provide the material strip; and A roller assembly is rotatably connected to the mounting plate, and the roller assembly is provided with the transport channel, one end of the transport channel extends to the material tray, and the other end extends to the inlet.

7. The unwinding device according to claim 6, characterized in that: The roller assembly comprises: At least two steering rollers, at least two of which are rotatably connected to the mounting plate and are respectively located at the entrance of the transport channel and the exit of the transport channel; a buffer roller, the buffer roller being movably connected to the mounting plate and used for buffering the material strip; and A tensioning roller is movably connected to the mounting plate and is used for tensioning the material belt.

8. The unwinding device according to claim 7, characterized in that: The unwinding device further comprises a material pressing structure, the material pressing structure is provided with an elastic member, one end of the elastic member elastically abuts against the steering roller and / or the buffer roller and / or the tensioning roller.

9. The unwinding device according to claim 6, characterized in that: The unwinding device comprises two material trays, which are rotatably connected to the mounting plate and are arranged at intervals, and either of the two material trays is connected to the transport channel.

10. A production line, characterized in that: The pipeline comprises: processing equipment; and The unwinding device according to any one of claims 1 to 9, wherein the unwinding device is connected to the processing device.

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